DS04-27406-3E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Supply Applications
Power Voltage Monitoring IC
with Watchdog Timer
MB3793-30A
■
■■
■DESCRIPTION
The MB3793 is an integrated circuit to monitor power voltage; it incorporates a watchdog timer.
A reset signal is output when the pow er is cut or f alls abruptly. When the po wer reco v ers normally after resetting,
a pow er-on reset signal is output to microprocessor units (MPUs). An internal watchdog timer with two inputs for
system operation diagnosis can provide a fall-safe function for various applicaiton systems.
There is also a mask option that can detect voltages of 4.9 V to 2.4 V in 0.1-V steps.
■
■■
■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 wacthdog and reset times
■
■■
■PACKAGE 8-pin, Plastic SOP
(FPT-8P-M01)
8-pin, Plastic SOL
(FPT-8P-M02)
8-pin, Plastic SSOP
(FPT-8P-M03)
8-pin, Plastic DIP
(DIT-8P-M01)
MB3793-30A
2
■
■■
■PIN ASSIGNMENT
■
■■
■PIN DESCRIPTION
Pin no. Symbol Descriptions Pin no. Symbol Descriptions
1 RESET Outputs reset pin 5 VCC Power supply pin
2CTW
Watchdog timer monitor time
setting pin 6 INH Inhibit pin
3CTP
Power-on reset hold time set-
ting pin 7 CK2 Inputs clock 2 pin
4 GND Ground pin 8 CK1 Inputs clock 1 pin
RESET
CTW
CTP
GND
CK1
CK2
INH
VCC
(FPT-8P-M01)
(FPT-8P-M02)
(FPT-8P-M03)
(DIP-8P-M01)
(TOP VIEW)
1
2
3
4
8
7
6
5
MB3793-30A
3
■
■■
■BLOCK DIAGRAM
I1 = 3 µA
..I2 = 30 µA
..
R1 =
360 kΩ
..
3
1
6
2
8
7
5
4
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
−
+
VS
VREF = 1.24 V
..
R2 =
240 kΩ
..
MB3793-30A
4
■
■■
■BLOCK DESCRIPTION
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 1 and 2. When VS falls below 1.24 V, a reset signal is output.
This function enables the MB3793 to detect an abnormality when the power is cut or falls abruptly.
2. Output circuit
The output circuit contains a RESET output control comparator that compares the v oltage at the CTP pin to the
threshold voltage to release the RESET output if the CTP pin voltage exceeds the threshold value.
Since the reset (RESET) output buffer has CMOS organization, no pull-up resistor is needed.
3. Pulse generator
The pulse generator generates pulses when the voltage at the CK1 and CK2 clock pins changes to High from
Low level (positive-edge trigger) and exceeds the threshold voltage; it sends the clock signal to the wa tchdog
timer.
4. Watchdog timer
The watchdog timer can monitor two 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
The logic circuit contains flip-flops.
Flip-flop RSFF1 controls the charging and discharging of the power-on reset time setting capacitor (CTP).
Flip-flop RSFF2 tur ns on/off the circuit that accelerates charging of the power-on reset time setting capacitor
(CTP) at a reset. The RSFF2 operates only at a reset; it does not operate at a power-on reset when the power
is turned on.
MB3793-30A
5
■
■■
■ABSOLUTE MAXIMUM RATINGS (Ta = +25 °C)
* : 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
FUJITSU 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 °C200 mW
Storage temperature Tstg −55 +125 °C
Parameter Symbol Conditions Value Unit
Min Typ Max
Power supply voltage VCC 1.2 3.3 6.0 V
Reset (RESET) output current IOL 0—+5mA
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 temperature Ta −40 +25 +85 °C
MB3793-30A
6
■
■■
■ELECTRICAL CHARACTERISTICS
1. DC Characteristics (VCC = +3.3 V, Ta = +25 °C)
* : The values enclosed in parentheses ( ) are setting assurance values.
2. AC Characteristics (VCC = +3.3 V, Ta = +25 °C)
* : The voltage range is 10% to 90% at testing the reset output transition time.
Parameter Symbol Conditions Value Unit
Min Typ Max
Power supply current ICC1 After exit from reset 31 45 µA
Detection voltage
VSL VCC falling Ta = +25 °C 2.93 3.00 3.07 V
Ta = −40 °C to +85 °C (2.89)* 3.00 (3.11)*
VSH VCC rising Ta = +25 °C 3.00 3.07 3.14 V
Ta = −40 °C to +85 °C (2.96)* 3.07 (3.18)*
Detection voltage hysteresis
difference VSHYS VSH – VSL 30 70 110 mV
Clock-input threshold voltage VCIH CK rising (0.7)* 1.3 1.9 V
VCIL CK falling 0.5 1.0 (1.5)* V
Clock-input hysteresis VCHYS (0.1)* 0.3 (0.6)* V
Inhibition-input voltage VIIH 2.2 VCC V
VIIL 00.8
Input current
(CK1, CK2, INH) IIH VCK = 5 V 01.0µA
IIL VCK = 0 V −1.0 0 µA
Reset output voltage VOH IRESET = −3 mA 2.8 3.10 V
VOL IRESET = +3 mA 0.12 0.4 V
Reset-output minimum power
voltage VCCL IRESET = +50 µA0.8 1.2 V
Parameter Symbol Conditions Value Unit
Min Typ Max
Power-on reset hold time tPR CTP = 0.1 µF 30 75 120 ms
Watchdog timer monitor time tWD CTW = 0.01 µF,
CTP = 0.1 µF81624ms
Watchdog timer reset time tWR CTP = 0.1 µF25.59ms
Clock input pulse width tCKW 500 ns
Clock 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
MB3793-30A
7
■
■■
■DIAGRAM
1. Basic operation (Positive clock pulse)
CTP
RESET
INH
CTW
CK1
CK2
VSH
VCC
VSL
Vth
VH
VL
(1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)
tPR tWD tPR
tWR
tCKW
tCKT
MB3793-30A
8
2. Basic operation (Negative clock pulse)
CTP
RESET
INH
CTW
CK1
CK2
VSH
VCC
VSL
Vth
VH
VL
tPR tWD tPR
tWR
tCKW
tCKT
(1) (2) (3) (4)(5) (5) (6) (7) (8) (9) (10) (11) (12) (13)
MB3793-30A
9
3. Single-clock input monitoring (Positive clock pulse)
CTP
RESET
CTW
CK1
Vth
VH
VL
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.
MB3793-30A
10
4. Inhibition operation (Positive clock pulse)
CTP
RESET
INH
CTW
CK1
CK2
VSH
VCC
VSL
Vth
VH
VL
tPR tWD tPR
tWR
tCKW
(1) (2) (3) (4)(5) (5) (6) (7) (11) (8) (9) (10) (12) (13)
MB3793-30A
11
5. Clock pulse input supplementation (Positive clock pulse)
CTW
CK1
CK2
VH
VL
tCKT
tCKW *1
*2
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.
MB3793-30A
12
■
■■
■OPERATION SEQUENCE
1. Positive clock pulse input
See “1. Basic operation (positive clock pulse)” under “■ DIAGRAM.”
2. Negative clock pulse input
See “2. Basic operation (negative clock pulse)” under “■ 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.
See “3. Single-clock input monitoring (positive clock pulse)” under “■ DIAGRAM.”
4. Description of Operations
The numbers given to the following items correspond to numbers (1) to (13) used in “■ 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
3.07 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 2.4 V with VCC = 3.3 V
The power-on reset hold timer monitor time tPR is set with the following equation:
tPR (ms) A × CTP (µF)
The value of A is about 750 with VCC = 3.3 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
voltage 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” le v el threshold voltage 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)
The value of B is hardly affected by the power supply voltage; it is about 1600 with VCC = 3.3 V.
(Continued)
..
=
..
=
MB3793-30A
13
(Continued)
(7) When a certain period of time tWR has passed (until the CTP pin voltage reaches or exceeds 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 55 with VCC = 3.3 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 f a ll-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 3.0 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]
tWR [ms] D × CTP [µF]
Values of A, B, C, and D
2. Example (when CTP = 0.1 µF and CTW = 0.01 µF)
ABCDRemark
750 1600 0 55 VCC = 3.3 V
1300 1500 0 100 VCC = 5.0 V
time
(ms)
Symbol VCC = 3.3 V VCC = 5.0 V
tPR 75 130
tWD 16 15
tWR 5.5 10
=
..
=
..
=
..
MB3793-30A
14
■
■■
■TYPICAL CHARACTERISTICS
Note : Without writing the value clearly, VCC = 3.3 (V), CTP = 0.1 (µF), CTW = 0.01 (µF).
(Continued)
0
5
10
15
20
25
30
35
40
45
50
012345678
Watchdog timer monitoring
(VINH = 0 V)
Watchdog timer stopping
(VINH = VCC)
f = 1 kHz
Duty = 10 %
CK1 = CK2
2.96
2.98
3.00
3.02
3.04
3.06
3.08
3.10
3.12
−40 −20 0 20 40 60 80 100 120
VSH
VSL
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.3
3.2
0−1−2−3−4−5−6−7−8−9−10
at VCC =3.3 V
+25 ˚C
+85 ˚C
−40 ˚C
0
100
400
300
200
500
600
012345678910
at VCC = 3.3 V
+25 ˚C
+85 ˚C
−40 ˚C
Power supply current vs. power supply voltage Detection voltage vs. ambient temperature
Power supply voltage VCC (V)
Power supply current ICC (µ
µµ
µA)
Detection voltage VSH, VSL (V)
Ambient temperature Ta ( °
°°
°C)
Reset output voltage vs. reset output current
(P-MOS side)
Reset output current IRESET (mA)
Reset output voltage VRESET (V)
Reset output voltage vs. reset output current
(N-MOS side)
Reset output current IRESET (mA)
Reset output voltage VRESET (V)
MB3793-30A
15
(Continued)
7
6
5
4
3
2
1
00123
Ta = +85 ˚C
Ta = +25 ˚C
Ta = −40 ˚C
4567
Pull-up resistance 100 kΩ
−40 −20 0 20406080100
0
20
40
60
80
100
120
140
160
180
200
120
at VCC = 3.3 V
−40 −20 0 20406080100
0
2
4
6
8
10
12
14
16
18
20
22
24
26
120
at VCC = 3.3 V
−40 −20 0 20406080100
0
2
4
6
8
10
12
14
16
18
20
22
24
26
120
at VCC = 3.3 V
Reset output voltage vs. Power supply voltage Power-on reset hold time vs. Ambient temperature
(When VCC rising)
Reset output voltage VRESET (V)
Power supply voltage VCC (V)
Power-on reset hold time tPR (ms)
Ambient temperature Ta ( °
°°
°C)
Watchdog timer reset time vs. Ambient temperature
(When monitoring)
Watchdog timer reset time tWR (ms)
Ambient temperature Ta ( °
°°
°C)
Watchdog timer monitoring time vs.
Ambient temperature
Watchdog timer monitoring time tWD (ms)
Ambient temperature Ta ( °
°°
°C)
MB3793-30A
16
(Continued)
104
103
102
101
1
10 −1
10−410−310−210−1110
1102
Ta = −40 °C
Ta = +25 °C
Ta = +85 °C
103
102
101
1
10−1
10−410−310−210−1110
1102
10−2
Ta = −40 °C
Ta = +25 °C
Ta = +85 °C
10
3
10
2
10
1
1
10
−1
10
−4
10
−3
10
−2
10
−1
110
1
10
−5
Ta = −40 °C
Ta = +25 °C
Ta = +85 °C
Power-on reset time vs. CTP capacitance
Power-on reset time tPR (ms)
Power-on reset time setting capacitance
CTP (µ
µµ
µF)
Reset time vs. CTP capacitance
Reset time tWR (ms)
Power-on reset time setting capacitance
CTP (µ
µµ
µF)
Watchdog timer monitoring time vs.
CTW capacitance
Watchdog timer monitoring time
tWD (ms)
Watchdog timer monitoring time
setting capacitance CTW (µ
µµ
µF)
MB3793-30A
17
■
■■
■APPLICATION EXAMPLE
1. (1) Supply voltage monitor and watchdog timer (1-clock monitor)
(2) Supply voltage monitor and watching timer (2-clock monitor)
5
2
3
647
8
1
RESET
Microprocessor
VCC
RESET
CK
GND
GND
GND
CTW*CTP*
VCC
VCC
CTW
CTP CK1
CK2INH
MB3793
* : Use a capacitor with less leakage current.
The MB3793 monitors the clock (CK1,2) at every other input pulse.
2
3
6
1
8
7
4
5
VCC
CTW*CTP*
GND
INH GND
VCC
CTP
CTW RESET
CK1
CK2
RESET
Microprocessor 1 Microprocessor 2
CK
GND
VCC RESET
CK
GND
VCC
MB3793
* : Use a capacitor with less leakage current.
MB3793-30A
18
2. Supply voltage monitor and watchdog timer stop
■
■■
■NOTES ON USE
• Take account of common impedance when designing the earth line on a printed wiring board.
• Take measures against static electricity.
- For semiconductors, use antistatic or conductive containers.
- When storing or carrying a printed circuit board after chip mounting, put it in a conductive bag or container.
- The work table, tools and measuring instruments must be grounded.
- The worker must put on a grounding device containing 250 kΩ to 1 MΩ resistors in series.
• Do not apply a negative voltage.
- Applying a negative voltage of −0.3 V or less to an LSI may generate a parasitic transistor, resulting in
malfunction.
GND
CTW*CTP*
VCC
RESET VCC
CK
GND
RESET
Microprocessor 1 Microprocessor 2
VCC
CK
GND
HALT
HALT
5
6
2
347
8
1
RESET
GND
VCC
INH
CTW CK1
CK2CTP
MB3793
* : Use a capacitor with less leakage current.
MB3793-30A
19
■
■■
■ORDERING INFORMATION
Part number Package Marking Remarks
MB3793-30AP 8-pin Plastic DIP
(DIP-8P-M01) 3793AN
MB3793-30APF 8-pin Plastic SOP
(FPT-8P-M01) 3793AN
MB3793-30APNF 8-pin Plastic SOL
(FPT-8P-M02) 3793AN
MB3793-30APFV 8-pin Plastic SSOP
(FPT-8P-M03) 93AN
MB3793-30A
20
■
■■
■PACKAGE DIMENSIONS
(Continued)
C
2002 FUJITSU LIMITED F08002S-c-6-7
0.13(.005) M
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)
14
58
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
*1
0.10(.004)
*2
Dimensions in mm (inches) .
Note : The values in parentheses are reference values.
8-pin Plastic SOP
(FPT-8P-M01) 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.
MB3793-30A
21
(Continued)
8-pin Plastic SOP
(FPT-8P-M02)
C
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) M
(.154±.012) (.236±.016)
0.10(.004)
14
58
0.44±0.08
(.017±.003)
–0.07
+0.03
0.22
.009 +.001
–.003
45˚
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)
*1
*2
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.
MB3793-30A
22
(Continued)
8-pin Plastic SSOP
(FPT-8P-M03)
C
2002 FUJITSU LIMITED F08005S-c-3-5
3.50±0.10(.138±.004)
4.20±0.10 6.20±0.20
(.244±.008)(.165±.004)
0.10(.004) M
.049 –.004
+.008
–0.10
+0.20
1.25
INDEX
*1
0.80(.031)
0.10(.004)
0~8˚
0.25(.010)
(Mounting height)
14
58
0.37±0.08
(.015±.003)
–0.04
+0.03
0.17
.007 +.001
–.002
"A"
0.50±0.20
(.020±.008)
0.60±0.15
(.024±.006)
0.10±0.10
(Stand off)
(.004±.004)
Details of "A" part
0.10(.004)
*2
Dimensions in mm (inches) .
Note : The values in parentheses are reference values.
Note 1) *1 : Resin protrusion. (Each side : +0.15 (.006) Max) .
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.
MB3793-30A
23
(Continued)
8-pin Plastic DIP
(DIP-8P-M01)
C
1994 FUJITSU LIMITED D08006S-2C-3
0.89 +0.35
–0.30
–0.30
+0.40
9.40
–0
0.99 1.52 +0.30
–0
+.014
–.012
.035
.370 –.012
+.016
.060 –0
+.012
+.012
–0
.039
4.36(.172)MAX
3.00(.118)MIN
2.54(.100)
TYP
0.46±0.08
(.018±.003)
0.25±0.05
(.010±.002)
0.51(.020)MIN
7.62(.300)
TYP
15°MAX
1 PIN INDEX 6.20±0.25
(.244±.010)
+0.30
Dimensions in mm (inches) .
Note : The values in parentheses are reference values.
MB3793-30A
FUJITSU LIMITED
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F0308
FUJITSU LIMITED Printed in Japan
