MB3793-45PF-E1 - Fujitsu Limited

FUJITSU MICROELECTRONICS

DATA SHEET

2009.9

ASSP

BIPOLAR

POWER-VOLTAGE MONITORING IC

WITH WATCHDOG TIMER

MB3793-45

■DESCRIPTION

The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer.

A reset signal is output when the power is cut or f alls abruptly. When the powe r recov ers normally after resetting,

a power-on reset signal is output to microprocessor units (MPUs). An internal watchdog timer with tw o inputs f or

system operation diagnosis can provide a fail-safe function for various application systems.

■FEATURES

• Precise detection of power voltage fall: ±2.5%

• Detection voltage with hysteresis

• Low power dispersion: ICC = 31 μA (reference)

• Internal dual-input watchdog timer

• Watchdog timer halt function (by inhibition pin)

• Independently-set watchdog and reset times

■APPLICATION

• Arcade Amusement etc.

Model No. Marking Code Detection voltage

MB3793-45 3793-7 4.5 V

DS04-27405-2E

MB3793-45

2DS04-27405-2E

■PIN ASSIGNMENT

■PIN DESCRIPTION

Pin No. Symbol Description

1 RESET Outputs reset

2 CTW Sets monitoring time

3 CTP Sets power-on reset hold time

4 GND Ground

CC Power supply

6 INH Inhibits watchdog timer function

7 CK2 Inputs clock 2

8 CK1 Inputs clock 1

RESET

CTW

CTP

GND

CK1

CK2

INH

VCC

(FPT-8P-M01)

(FPT-8P-M02)

(TOP VIEW)

MB3793-45

DS04-27405-2E 3

■BLOCK DIAGRAM

I1 = 3 μA

..I2 = 30 μA

R1 =

650 kΩ

CTP

To VCC of all blocks

Pulse generator 1

Watchdog

timer

Reference

voltage

generator

To GND of

all blocks

Pulse generator 2

Output circuit Logic circuit

RESET

INH

CTW

CK1

CK2

VCC

GND

Comp.S

−

VREF = 1.24 V

R2 =

240 kΩ

MB3793-45

4DS04-27405-2E

■BLOCK FUNCTIONS

1. Comp. S

Comp. S is a comparator with hysteresis to compare the reference voltage with a voltage (VS) that is the result

of dividing the power voltage (VCC) by resistors R1 and R2. When VS falls below 1.24 V, a reset signal is output.

This function enables the MB3793 to detect an abnormality within 1 μs when the power is cut or falls abruptly.

2. Output circuit

The output circuit has a comparator to control the reset signal (RESET) output. When the voltage at the CTP

pin for setting the power-on reset hold time exceeds the threshold voltage, resetting is canceled.

Since the reset (RESET) output buffer has the CMOS organization, no pull-up resistor is needed.

3. Pulse generator

The pulse generator generates pulses when the voltage at the CK1 and CK2 input clock pins changes to High

from Low level (positive-edge trigger) and exceeds the threshold voltage; it sends the clock signal to the watchdog

timer.

4. Watchdog timer

The watchdog timer can monitor tw o clock pulses . Short-circuit the CK1 and CK2 clock pins to monitor a single

clock pulse.

5. Inhibition pin

The inhibition (INH) pin forces the watchdog timer on/off. When this pin is High level, the watchdog timer is

stopped.

6. Logic circuit

Logic circuit controls charging and discharging of the power-on reset hold time setting capacity (CTP) on a signal

of Comp.S and Watchdog timer.

MB3793-45

DS04-27405-2E 5

■ABSOLUTE MAXIMUM RATINGS

* : The voltage is based on the ground voltage (0 V).

WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,

temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.

■RECOMMENDED OPERATING CONDITIONS

* : The watchdog timer monitor time range depends on the rating of the setting capacitor.

WARNING: The recommended operating conditions are required in order to ensure the normal operation of

the semiconductor device. All of the device's electrical characteristics are warranted when the

device is operated within these ranges.

Always use semiconductor devices within their recommended operating condition ranges.

Operation outside these ranges may adversely affect reliability and could result in device failure.

No warranty is made with respect to uses, operating conditions, or combinations not represented

on the data sheet. Users considering application outside the listed conditions are advised to contact

their representatives beforehand.

Parameter Symbol Conditions Rating Unit

Min Max

Power supply voltage* VCC ⎯−0.3 +7V

Input voltage*

CK1 VCK1 ⎯

−0.3 VCC + 0.3

( ≤ +7) VCK2 VCK2 ⎯

INH IINH ⎯

Reset output voltage* RESET

VOL

VOH ⎯−0.3 VCC + 0.3

( ≤ +7) V

Reset output current IOL

IOH ⎯−10 +10 mA

Power dissipation PDTa ≤ +85 °C⎯200 mW

Storage temperature Tstg ⎯−55 +125 °C

Parameter Symbol Conditions Value Unit

Min Typ Max

Power supply voltage VCC ⎯1.2 5.0 6.0 V

Reset (RESET) output current IOL ⎯0— + 5 mA

IOH ⎯−5— 0

Power-on reset hold time setting

capacity CTP ⎯0.001 0.1 10 μF

Watchdog-timer monitoring time

setting capacity* CTW ⎯0.001 0.01 1 μF

Operating ambient temperature Ta ⎯−40 +25 +85 °C

MB3793-45

6DS04-27405-2E

■ELECTRICAL CHARACTERISTICS

1. DC Characteristics

* : This parameter is guaranteed by design, which is not supported by a final test.

(VCC = +5 V, Ta = +25°C)

Parameter Symbol Conditions Value Unit

Min Typ Max

Power current ICC1 After exit from reset ⎯31 45 μA

Detection voltage

VSL VCC falling Ta = +25°C 4.40 4.50 4.60 V

Ta = −40 to +85°C 4.35* 4.50 4.65*

VSH VCC rising Ta = +25°C 4.50 4.60 4.70 V

Ta = −40 to +85°C 4.45* 4.60 4.75*

Detection voltage

hysteresis difference VSHYS VSH - VSL 50 100 150 mV

CK input threshold voltage VCIH ⎯1.4* 1.9 2.5 V

VCIL ⎯0.8 1.3 1.8* V

CK input hysteresis VCHYS ⎯0.4* 0.6 0.8* V

INH input voltage VIIH ⎯3.5 ⎯VCC V

VIIL ⎯0⎯0.8 V

Input current

(CK1,CK2,INH) IIH VCK = VCC ⎯01.0μA

IIL VCK = 0 V −1.0 0 ⎯μA

Reset output voltage VOH IRESET = −5 mA 4.5 4.75 ⎯V

VOL IRESET = +5 mA ⎯0.12 0.4 V

Reset-output minimum

power voltage VCCL IRESET = +50 μA⎯0.8 1.2 V

MB3793-45

DS04-27405-2E 7

2. AC Characteristics

*: The voltage range is 10% to 90% at testing the reset output transition time.

(VCC = +5 V, Ta = +25°C)

Parameter Symbol Conditions Value Unit

Min Typ Max

Power-on reset hold time tPR CTP = 0.1 μF 80 130 180 ms

Watchdog timer monitoring time tWD CTW = 0.01 μF

CTP = 0.1 μF7.5 15 22.5 ms

Watchdog timer reset time tWR CTP = 0.1 μF 5 10 15 ms

CK input pulse duration tCKW ⎯500 ⎯⎯ns

CK input pulse cycle tCKT ⎯20 ⎯⎯μs

Reset (RESET) output transition time Rising tr* CL = 50 pF ⎯⎯500 ns

Falling tf* CL = 50 pF ⎯⎯500 ns

MB3793-45

8DS04-27405-2E

■TIMING DIAGRAM

1. Basic operation (Positive clock pulse)

CTP

RESET

INH

CTW

CK1

CK2

VSH

VSL

Vth

(1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)

tPR tWD tPR

tWR

tCKW

tCKT

MB3793-45

DS04-27405-2E 9

2. Basic operation (Negative clock pulse)

CTP

RESET

INH

CTW

CK1

CK2

VSH

VCC

VSL

Vth

tPR tWD tPR

tWR

tCKW

tCKT

(1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)

MB3793-45

10 DS04-27405-2E

3. Single-clock input monitoring (Positive clock pulse)

CTP

RESET

CTW

CK1

Vth

CK2

tWR

tWD

tCKT

tCKW

Note : The MB3793 can monitor only one clock.

The MB3793 checks the clock signal at every other input pulse.

Therefore, set watchdog timer monitor time tWD to the time that allows the MB3793

to monitor the period twice as long as the input clock pulse.

MB3793-45

DS04-27405-2E 11

4. Inhibition operation (Positive clock pulse)

CTP

RESET

INH

CTW

CK1

CK2

VSH

VSL

Vth

tPR tWD tPR

tWR

tCKW

(1) (2) (3) (4)(5) (5) (6) (7) (11) (8) (9) (10) (12) (13)

tCKT

MB3793-45

12 DS04-27405-2E

5. Clock pulse input supplementation (Positive clock pulse)

CTW

CK1

CK2

CKT

CKW *1

Note : The MB3793 watchdog timer monitors Clock1 (CK1) and Clock2 (CK2) pulses alternately.

When a CK2 pulse is detected after detecting a CK1 pulse, the monitoring time setting capacity

(CTW) switches to charging from discharging.

When two consecutive pulses occur on one side of this alternation before switching, the second

pulse is ignored.

In the above figure, pulse *1 and *2 are ignored.

MB3793-45

DS04-27405-2E 13

■OPERATION SEQUENCE

1. Positive clock pulse input

Refer to “1. Basic operation (positive clock pulse)” under “■ TIMING DIAGRAM.”

2. Negative clock pulse input

Refer to “2. Basic operation (negative clock pulse)” under “■ TIMING DIAGRAM.”

The MB3793 operates in the same way whether it inputs positive or negative pulses.

3. Clock monitoring

To use the MB3793 while monitoring only one clock, connect clock pins CK1 and CK2.

Although the MB3793 operates basically in the same way as when monitoring two cloc ks, it monitors the clock

signal at every other input pulse.

Refer to “3. Single-clock input monitoring (positive clock pulse)” under “■ TIMING DIAGRAM.”

4. Description of Operations

The numbers given to the following items correspond to numbers (1) to (13) used in “■ TIMING DIAGRAM.”

(1) The MB3793 outputs a reset signal when the supply voltage (VCC) reaches about 0.8 V (VCCL)

(2) If VCC reaches or e xceeds the rise-time detected voltage VSH, the MB3793 starts charging the power-on

reset hold time setting capacitor CTP. At this time, the output remains in a reset state. The VSH value is

4.60 V (Typ) .

(3) When CTP has been charged for a certain period of time TPR (until the CTP pin voltage exceeds the

threshold voltage (Vth) after the start of charging), the MB3793 cancels the reset (setting the RESET pin

to “H” level from “L” level).

The Vth value is about 3.6 V with VCC = 5.0 V

The power-on reset hold time tPR is set with the following equation:

tPR (ms) A × CTP (μF)

The value of A is about 1300 with VCC = 5.0 V. The MB3793 also starts charging the watchdog timer

monitor time setting capacitor (CTW).

(4) When the voltage at the watchdog timer monitor time setting pin CTW reaches the “H” level threshold

v o ltage VH, the CTW switches from the charge state to the discharge state.

The value of VH is always about 1.24 V regardless of the detected voltage.

(5) If the CK2 pin inputs a clock pulse (positive edge trigger) when the CTW is being discharged in the

CK1-CK2 order or simultaneously, the CTW switches from the discharge state to the charge state.

The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses with the

system logic circuit operating normally.

(6) If no clock pulse is fed to the CK1 or CK2 pin within the watchdog timer monitor time tWD due to some

problem with the system logic circuit, the CTW pin is set to the “L” lev el threshold v oltage VL or less and

the MB3793 outputs a reset signal (setting the RESET pin to “L” level from “H” level).

The value of VL is always about 0.24 V regardless of the detected voltage.

The watchdog timer monitor time tWD is set with the following equation:

tWD (ms) B × CTW (μF) + C × CTP (μF)

The value of B is hardly affected by the power supply voltage; it is about 1500 with VCC = 5.0 V.

The value in C is about 3 which is tremendously smaller than the value in B. For this reason, it is possible

to simplify the formula as below when CTP/CTW 10 or less.

tWD (ms) B × CTW (μF)

MB3793-45

14 DS04-27405-2E

(7) When a certain period of time tWR has passed (until the CTP pin voltage reaches or e xceeds Vth again

after recharging the CTP), the MB3793 cancels the reset signal and starts operating the watchdog timer.

The watchdog timer monitor reset time tWR is set with the following equation:

tWR (ms) D x CTP (μF)

The value of D is 100 with VCC = 5.0 V.

The MB3793 repeats operations (4) and (5) as long as the CK1/CK2 pin inputs cloc k pulses. If no cloc k

pulse is input, the MB3793 repeats operations (6) and (7).

(8) If VCC is lowered to the fall-time detected voltage (VSL) or less, the CTP pin voltage decreases and the

MB3793 outputs a reset signal (setting the RESET pin to “L” level from “H” level).

The value of VSL is 4.50 V (Typ) .

(9) When VCC reaches or exceeds VSH again, the MB3793 starts charging the CTP.

(10) When the CTP pin voltage reaches or exceeds Vth, the MB3793 cancels the reset and restarts operating

the watchdog timer. It repeats operations (4) and (5) as long as the CK1/CK2 pin inputs clock pulses.

(11) Making the inhibit pin active (setting the INH pin to “H” from “L”) forces the watchdog timer to stop

operation.

This stops only the watchdog timer, leaving the MB3793 monitoring VCC (operations (8) to (10)).

The watchdog timer remains inactive unless the inhibit input is canceled.

The inhibition (INH) pin must be connecting a voltage of more low impedance, to evade of the noise.

(12) Canceling the inhibit input (setting the INH pin to “L” from “H”) restarts the watchdog timer.

(13) The reset signal is output when the power supply is turned off to set VCC to VSL or less.

1. Equation of time-setting capacitances (CTP and CTW) and set time

tPR [ms] A × CTP [μF]

tWD [ms] B × CTW [μF] + C × CTP [μF]

However, when CTP/CTW 10 or less, tWD [ms] B × CTW [μF]

tWR [ms] D × CTP [μF]

Values of A, B, C, and D

Note: The width of value of tPR, tWD and tWR becomes the same ratio as width (Min, Max) of each

specification value.

2. Example (when CTP = 0.1 μF and CTW = 0.01 μF)

ABCDRemark

1300 1500 3 100 VCC = 5.0 V

time

(ms)

Symbol VCC = 5.0 V

tPR 130

tWD 15

tWR 10

MB3793-45

DS04-27405-2E 15

■TYPICAL CHARACTERISTICS

(Continued)

20 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0

MB3793VINH VCC

(VINH = 0 V)

Ta = +25 °C

Ta = +85 °C

Ta = -40 °C

0012345678910

0.1

0.2

0.3

0.4

0.5

0.6

4.3

-20-40 0 +20 +40 +60 +80 +100 +120

4.4

4.5

4.6

4.7

4.8

VSH

VSL

0-1-2-3-4 -5 -6 -7 -8-9 -10

Ta = +25 °C

Ta = +85 °C

Ta = -40 °C

4.0

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.0

ICC - VCC characteristics

Power current

ICC (μA)

Power voltage VCC (V)

Watchdog timer monitoring

Detection voltage

VSH and VSL (V)

Operating ambient temperature Ta (°C)

Reset output current I RESET (mA)

Reset output voltage

V RESET (V)

V RESET - I RESET characteristics

(P-MOS side) V RESET - I RESET characteristics

(N-MOS side)

Reset output voltage

V RESET (V)

Reset output current I RESET(mA)

VSH, VSL - Ta characteristics

fCK= 1 kHz, Duty = 10%

VL = 0 V/VH = VCC

CTW = 0.01 μF, CTP = 0.1 μF

MB3793-45

16 DS04-27405-2E

(Continued)

001234567

Ta = +85 °C

Ta = +25 °C

Ta = -40 °C

-40 -20 0 +20 +40 +60 +80 +100 +120

100

120

140

160

180

200

220

240

260

at VCC = 5.0 V

−40 −20 0 +20 +40 +60 +80 +100 +120

at VCC = 5.0 V

−40 −20 0 +20 +40 +60 +80 +100 +120

at VCC = 5.0 V

VRESET - VCC characteristics

Power voltage VCC (V)

Reset output voltage

VRESET (V)

Pull-up resistance: 100 kΩ

tPR - Ta characteristics

Operating ambient temperature Ta (°C)

Power-on reset hold time

tPR (ms)

tWR - Ta characteristics tWD - Ta characteristics

Operating ambient temperature Ta (°C) Operating ambient temperature Ta (°C)

Watchdog timer reset time

tWR (ms)

Watchdog timer monitoring time

tWD (ms)

MB3793-45

DS04-27405-2E 17

(Continued)

104

103

102

101

10 −1

10−410−310−210−1110

1102

Ta = −40 °C

Ta = +25 °C

Ta = +85 °C

103

102

101

10−1

10−410−310−210−1110

1102

10−2

Ta = −40 °C

Ta = +25 °C

Ta = +85 °C

103

102

101

10−1

10−410−310−210−1110

10−5

Ta = −40 °C

Ta = +25 °C

Ta = +85 °C

CTP = 0.01 μF

104

103

102

101

10−1

10−410−310−210−1110

10−5

CTP = 0.01 μF

CTP = 0.1 μF

CTP = 1 μF

tPR - CTP characteristics tWR - CTP characteristics

Power-on reset hold time

tPR (ms)

Power-on reset time setting capacitance

CTP (μF) Power-on reset time setting capacitance

CTP (μF)

tWD - CTW characteristics tWD - CTW characteristics

Watchdog timer monitoring time

tWD (ms)

Watchdog timer monitoring time setting capacitance

CTW (μF)

Watchdog timer monitoring time

tWD (ms) Watchdog timer reset time

tWR (ms)

Watchdog timer monitoring time setting capacitance

CTW (μF)

MB3793-45

18 DS04-27405-2E

■APPLICATION EXAMPLE

1. Supply voltage monitor and watchdog timer

(1) 1-clock monitor

(2) 2-clock monitor

647

RESET VCC

RESET

GND

CTW*CTP*

VCC

CTW

CTP CK1

CK2INH

MB3793

* : Use a capacitor with less leakage current.

Microprocessor

VCC

CTW*CTP*

GND

INH GND

VCC

CTP

CTW RESET

CK1

CK2

RESET

GND

VCC RESET

GND

VCC

MB3793

* : Use a capacitor with less leakage current.

Microprocessor1 Microprocessor2

MB3793-45

DS04-27405-2E 19

2. Supply voltage monitor and watchdog timer stop

3. Setting of compulsory reset

GND

CTW*CTP*

VCC

RESET VCC

GND

RESET VCC

GND

HALT

647

1RESET

GND

VCC

INH

CTW

CK1

CK2

CTP

MB3793

* : Use a capacitor with less leakage current.

Microprocessor1 Microprocessor2

647

RESET VCC

RESET

GND

CTW*CTP*

RESIN

10 kΩ

VCC

CTW

CTP CK1

CK2INH

MB3793

* : Use a capacitor with less leakage current.

It is possible fo r the RESET pin to fix to “L” if the CTP pin is short-circuited to GND.

Take care not to change the value of the CTP capacity because of the influence of Tr that

is used at the time.

Microprocessor

MB3793-45

20 DS04-27405-2E

■USAGE PRECAUTION

1. Do not configure the IC over the maximum ratings

If the lC is used over the maximum ratings, the LSl may be permanently damaged.

It is preferable for the device to normally operate within the recommended usage conditions. Usage outside of

these conditions can have a bad effect on the reliability of the LSI.

2. Use the devices within recommended operating conditions

The recommended operating conditions are under which the LSl is guaranteed to operate.

The electrical ratings are guaranteed when the device is used within the recommended operating conditions

and under the conditions stated for each item.

3. Printed circuit board ground lines should be set up with consideration for common

impedance

4. Take appropriate measures against static electricity

• Containers f or semiconductor materials should ha v e anti-static protection or be made of conductiv e material.

• After mounting, printed circuit boards should be stored and shipped in conductive bags or containers.

• Work platforms, tools, and instruments should be properly grounded.

• Working personnel should be grounded with resistance of 250 kΩ to 1 MΩ between body and ground.

5. Do not apply negative voltages

The use of negative voltages below –0.3 V may create parasitic transistors on LSI lines, which can cause

malfunctions.

■ORDERING INFORMATION

■RoHS Compliance Information of Lead (Pb) Free version

The LSI products of Fujitsu Microelectronics with “E1” are compliant with RoHS Directive , and has observed

the standard of lead, cadmium, mercury, He xav alent chromium, polybrominated biphenyls (PBB) , and polybro-

minated diphenyl ethers (PBDE) .

The product that conforms to this standard is added “E1” at the end of the part number.

Part number Package Remarks

MB3793-45PF 8-pin plastic SOP

(FPT-8P-M01)

MB3793-45PNF 8-pin plastic SOP

(FPT-8P-M02)

MB3793-45

DS04-27405-2E 21

■LABELING SAMPLE (Lead free version)

2006/03/01

ASSEMBLED IN JAPAN

QC PASS

(3N) 1MB123456P-789-GE1

1000

(3N)2 1561190005 107210

1,000

PCS

0605 - Z01A

1000

1/1

1561190005

MB123456P - 789 - GE1

Lead-free mark

JEITA logo JEDEC logo

The part number of a lead-free product has

the trailing characters “E1”. “ASSEMBLED IN CHINA” is printed on the label

of a product assembled in China.

MB3793-45

22 DS04-27405-2E

■MARKING FORMAT (Lead Free version)

INDEX

3793-7

E1XXXX

XXX

3793-7

XXXX

E1 XXX

Lead Free version

SOP-8

(FPT-8P-M02)

SOP-8

(FPT-8P-M01)

MB3793-45

DS04-27405-2E 23

■MB3793-45PF, MB3793-45PNF

RECOMMENDED CONDITIONS OF MOISTURE SENSITIVITY LEVEL

[Temperature Profile for FJ Standard IR Reflow]

(1) IR (infrared reflow)

(2) Manual soldering (partial heating method)

Conditions : Temperature 400 °C Max

Times : 5 s max/pin

Item Condition

Mounting Method IR (infrared reflow) , Manual soldering (partial heating method)

Mounting times 2 times

Storage period

Before opening Please use it within two years after

Manufacture.

From opening to the 2nd

reflow Less than 8 days

When the storage period after

opening was exceeded Please processes within 8 days

after baking (125 °C, 24H)

Storage conditions 5 °C to 30 °C, 70%RH or less (the lowest possible humidity)

260 °C

(e)

(d')

(d)

255 °C

170 °C

190 °C

RT (b)

(a)

(c)

Note : Temperature : the top of the package body

(a) Temperature Increase gradient : Average 1 °C/s to 4 °C/s

(b) Preliminary heating : Temperature 170 °C to 190 °C, 60s to 180s

(d) Actual heating : Temperature 260 °C Max; 255 °C or more, 10s or less

(d’) : Temperature 230 °C or more, 40s or less

Temperature 225 °C or more, 60s or less

Temperature 220 °C or more, 80s or less

(e) Cooling : Natural cooling or forced cooling

H rank : 260 °C Max

MB3793-45

24 DS04-27405-2E

■PACKAGE DIMENSIONS

(Continued)

8-pin plastic SOP Lead pitch 1.27 mm

Package width

package length

5.3 × 6.35 mm

Lead shape Gullwing

Sealing method Plastic mold

Mounting height 2.25 mm MAX

Weight 0.10 g

Code

(Reference) P-SOP8-5.3×6.35-1.27

8-pin plastic SOP

(FPT-8P-M01)

2002-2008 FUJITSU MICROELECTRONICS LIMITED F08002S-c-6-8

0.13(.005)

Details of "A" part

7.80±0.405.30±0.30

(.209±.012) (.307±.016)

.250 –.008

+.010

–0.20

+0.25

6.35

INDEX

1.27(.050)

0.10(.004)

0.47±0.08

(.019±.003)

–0.04

+0.03

0.17

.007 +.001

–.002

"A" 0.25(.010)

(Stand off)

0~8

(Mounting height)

2.00 +0.25

–0.15

.079 +.010

–.006

0.50±0.20

(.020±.008)

0.60±0.15

(.024±.006)

0.10 +0.10

–0.05

–.002

+.004

.004

0.10(.004)

Dimensions in mm (inches).

Note: The values in parentheses are reference values.

Note 1) *1 : These dimensions include resin protrusion.

Note 2) *2 : These dimensions do not include resin protrusion.

Note 3)Pins width and pins thickness include plating thickness.

Note 4) Pins width do not include tie bar cutting remainder.

MB3793-45

DS04-27405-2E 25

(Continued)

Please check the latest package dimension at the following URL.

http://edevice.fujitsu.com/package/en-search/

8-pin plastic SOP Lead pitch 1.27 mm

Package width

package length

3.9 × 5.05 mm

Lead shape Gullwing

Sealing method Plastic mold

Mounting height 1.75 mm MAX

Weigh t 0.0 6 g

8-pin plastic SOP

(FPT-8P-M02)

2002 FUJITSU LIMITED F08004S-c-4-7

1.27(.050)

3.90±0.30 6.00±0.40

.199 –.008

+.010

–0.20

+0.25

5.05

0.13(.005)

(.154±.012) (.236±.016)

0.10(.004)

0.44±0.08

(.017±.003)

–0.07

+0.03

0.22

.009 +.001

–.003

0.40(.016) "A" 0~8

0.25(.010)

(Mounting height)

Details of "A" part

1.55±0.20

(.061±.008)

0.50±0.20

(.020±.008)

0.60±0.15

(.024±.006)

0.15±0.10

(.006±.004)

(Stand off)

0.10(.004)

Dimensions in mm (inches).

Note: The values in parentheses are reference values.

Note 1) *1 : These dimensions include resin protrusion.

Note 2) *2 : These dimensions do not include resin protrusion.

Note 3) Pins width and pins thickness include plating thickness.

Note 4) Pins width do not include tie bar cutting remainder.

MB3793-45

26 DS04-27405-2E

■CONTENTS

page

-DESCRIPTION .................................................................................................................................................... 1

-FEATURES .......................................................................................................................................................... 1

-APPLICATION ..................................................................................................................................................... 1

-PIN ASSIGNMENT ............................................................................................................................................. 2

-PIN DESCRIPTION ............................................................................................................................................ 2

-BLOCK DIAGRAM .............................................................................................................................................. 3

-BLOCK FUNCTIONS ......................................................................................................................................... 4

-ABSOLUTE MAXIMUM RATINGS ................................................................................................................... 5

-RECOMMENDED OPERATING CONDITIONS ............................................................................................ 5

-ELECTRICAL CHARACTERISTICS ................................................................................................................ 6

-TIMING DIAGRAM .............................................................................................................................................. 8

-OPERATION SEQUENCE ................................................................................................................................ 13

-TYPICAL CHARACTERISTICS ........................................................................................................................ 15

-APPLICATION EXAMPLE ................................................................................................................................. 18

-USAGE PRECAUTION ...................................................................................................................................... 20

-ORDERING INFORMATION ............................................................................................................................. 20

-RoHS Compliance Information of Lead (Pb) Free version ........................................................................... 20

-LABELING SAMPLE (Lead free version) ........................................................................................................ 21

-MARKING FORMAT (Lead Free version) ....................................................................................................... 22

-MB3793-45PF, MB3793-45PNF RECOMMENDED CONDITIONS OF MOISTURE SENSITIVITY LEVEL 23

-PACKAGE DIMENSIONS .................................................................................................................................. 24

MB3793-45

DS04-27405-2E 27

MEMO

MB3793-45

FUJITSU MICROELECTRONICS LIMITED

Shinjuku Dai-Ichi Seimei Bldg., 7-1, Nishishinjuku 2-chome,

Shinjuku-ku, Tokyo 163-0722, Japan

Tel: +81-3-5322-3329

http://jp.fujitsu.com/fml/en/

For further information please contact:

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Tel: +49-6103-690-0 Fax: +49-6103-690-122

http://emea.fujitsu.com/microelectronics/

Korea

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Tel : +852-2377-0226 Fax : +852-2376-3269

http://cn.fujitsu.com/fmc/en/

Specifications are subject to change without notice. For further information please contact each office.

The contents of this document are subject to change without notice.

Customers are advised to consult with sales representatives before ordering.

The information, such as descriptions of function and application circuit examples, in this document are presented solely for the purpose

of reference to show examples of operations and uses of FUJITSU MICROELECTRONICS device; FUJITSU MICROELECTRONICS

does not warrant proper operation of the device with respect to use based on such information. When you develop equipment incorporating

the device based on such information, you must assume any responsibility arising out of such use of the information.

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Any information in this document, including descriptions of function and schematic diagrams, shall not be construed as license of the use

or exercise of any intellectual property right, such as patent right or copyright, or any other right of FUJITSU MICROELECTRONICS

or any third party or does FUJITSU MICROELECTRONICS warrant non-infringement of any third-party's intellectual property right or

other right by using such information. FUJITSU MICROELECTRONICS assumes no liability for any infringement of the intellectual

property rights or other rights of third parties which would result from the use of information contained herein.

The products described in this document are designed, developed and manufactured as contemplated for general use, including without

limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured

as contemplated (1) for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to

the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear

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system), or (2) for use requiring extremely high reliability (i.e., submersible repeater and artificial satellite).

Please note that FUJITSU MICROELECTRONICS will not be liable against you and/or any third party for any claims or damages arising

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levels and other abnormal operating conditions.

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The company names and brand names herein are the trademarks or registered trademarks of their respective owners.

Edited: Sales Promotion Department