5T9050PGI - INTEGRATED DEVICE TECHNOLOGY

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

MAY 2010

2006 Integrated Device Technology, Inc. DSC-4242/4c

IDT74FCT807BT/CT

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

FAST CMOS

1-TO-10 CLOCK DRIVER

FUNCTIONAL BLOCK DIAGRAM

FEATURES:

• 0.5 MICRON CMOS Technology

• Guaranteed low skew < 250ps (max.)

• Very low duty cycle distortion < 350ps (max.)

• High speed: propagation delay < 2.5ns (max.)

• 100MHz operation

• TTL compatible inputs and outputs

• TTL level output voltage swings

• 1:10 fanout

• Output rise and fall time < 1.5ns (max)

• Low input capacitance: 4.5pF typical

• High drive: -32mA IOH, +48mA IOL

• Available in QSOP, SSOP, and SOIC packages

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

DESCRIPTION:

The FCT807T clock driver is built using advanced dual metal CMOS

technology. This low skew clock driver features 1:10 fanout, providing

minimal loading on the preceding drivers. The FCT807T offers low

capacitance inputs with hysteresis for improved noise margins. TTL level

outputs and multiple power and grounds reduce noise. The device also

features -32/48mA drive capability for driving low impedance traces.

O10

PIN CONFIGURATION

QSOP/ SOIC/ SSOP

TOP VIEW

GND

VCC

GND

VCC

GND

VCC

GND

VCC

10 11

O10

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER

ABSOLUTE MAXIMUM RATINGS(1)

Symbol Description Max Unit

VTERM Terminal Voltage with Respect to GND –0.5 to +7 V

TSTG Storage Temperature –65 to +150 °C

IOUT DC Output Current –60 to +120 mA

PIN DESCRIPTION

Pin Names Description

IN Inputs

Ox Outputs

CAPACITANCE (TA = +25OC, f = 1.0MHz)

Symbol Parameter(1) Conditions Typ. Max. Unit

CIN Input Capacitance VIN = 0V 4.5 6 pF

COUT Output Capacitance VOUT = 0V 5.5 8 pF

NOTE:

1. This parameter is measured at characterization but not tested.

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Commercial: TA = 0°C to +70°C, Industrial: TA = -40°C to +85°C, VCC = 5V ± 5%

Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit

VIH Input HIGH Level (Input pins) Guaranteed Logic HIGH Level 2 — — V

VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V

IIH Input HIGH Current (Input pins) VCC = Max. VI = 2.7V — — ±1µA

IIL Input LOW Current (Input pins) VCC = Max. VI = 0.5V — — ±1µA

IOZH High Impedance Output Current VCC = Max. VO = 2.7V — — ±1µA

IOZL (3-State Output pins) VO = 0.5V — — ±1

IIInput HIGH Current VCC = Max., VI = VCC (Max.) — — ±1µA

VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V

IOS Short Circuit Current(4) VCC = Max., VO = GND(3) –60 –120 –225 mA

VOH Output HIGH Voltage VCC = Min. IOH = –15mA 2 . 4 3 . 3 — V

VIN = VIH or VIL IOH = –32mA 2 3 —

VOL Output LOW Voltage VCC = Min. IOL = 48mA — 0.3 0.55 V

VIN = VIH or VIL

IOFF Input/Output Power Off Leakage VCC = 0V, VIN or VO ≤ 4.5V — — ±1µA

VHInput Hysteresis for all inputs — — 150 — mV

ICCL Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — 5 500 µA

ICCH

ICCZ

NOTES:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at Vcc = 5V, +25°C ambient.

3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.

4. Duration of the condition should not exceed one second.

NOTE:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause

permanent damage to the device. This is a stress rating only and functional operation

of the device at these or any other conditions above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect reliability.

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

NOTES:

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 5V, +25°C ambient.

3. Per TTL driven input (VIN = 3.4V); all other inputs at VCC or GND.

4. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.

5. Values for these conditions are examples of the IC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC + ∆ICC DHNT + ICCD (fONO)

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)

DH = Duty Cycle for TTL Inputs High

NT = Number of TTL Inputs at DH

ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

fO = Output Frequency

NO = Number of Outputs at fO

All currents are in milliamps and all frequencies are in megahertz.

POWER SUPPLY CHARACTERISTICS

Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit

∆ICC Quiescent Power Supply Current VCC = Max. — 0.5 2 mA

TTL Inputs HIGH VIN = 3.4V

ICCD Dynamic Power Supply Current(3) VCC = Max. VIN = VCC — 0.4 0.6 mA/MHz

Input Toggling VIN = GND

50% Duty Cycle

Outputs Open

ICTotal Power Supply Current(5) VCC = Max. VIN = VCC — 20 30.5(4) mA

Input Toggling VIN = GND

50% Duty Cycle

Outputs Open VIN = 3.4V — 20.3 31.3(4)

fI = 50MHz VIN = GND

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER

NOTES:

1. See test circuits and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

3. tPLH, tPHL, tSK(t) are production tested. All other parameters guaranteed but not production tested.

4. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew.

SWITCHING CHARACTERISTICS OVER OPERATING RANGE - COMMERCIAL(3,4)

FCT807BT FCT807CT

Symbol Parameter Conditions(1) Min.(2) Max.Min.(2) Max.Unit

tPLH Propagation Delay 1.3 2.7 1.3 2.5 ns

tPHL

tROutput Rise Time — 1.5 — 1.5 ns

tFOutput Fall Time — 1.5 — 1.5 ns

tSK(O) Output skew: skew between outputs of all banks of — 0.5 — 0.25 ns

same package (inputs tied together)

tSK(P) Pulse skew: skew between opposite transitions — 0.5 — 0.35 ns

of same output (|tPHL -– tPLH|)

tSK(T) Package skew: skew between outputs of different — 0.9 — 0.65 ns

packages at same power supply voltage,

temperature, package type and speed grade

50Ω to VCC/2,

CL = 10pF

(See figure 1)

or 50Ω ac

termination,

CL = 10pF

(See figure 2)

f ≤ 100MHz

Outputs connected in

groups of two

FCT807BT FCT807CT

Symbol Parameter Conditions(1) Min.(2) Max.Min.(2) Max.Unit

tPLH Propagation Delay 1.5 3.8 1.5 3.5 ns

tPHL

tROutput Rise Time — 1.5 — 1.5 ns

tFOutput Fall Time — 1.5 — 1.5 ns

tSK(O) Output skew: skew between outputs of all banks of — 0.5 — 0.25 ns

same package (inputs tied together)

tSK(P) Pulse skew: skew between opposite transitions — 0.5 — 0.35 ns

of same output (|tPHL -– tPLH|)

tSK(T) Package skew: skew between outputs of different — 0.9 — 0.75 ns

packages at same power supply voltage,

temperature, package type and speed grade

CL = 30pF

f ≤ 67MHz

(See figure 3)

FCT807BT FCT807CT

Symbol Parameter Conditions(1) Min.(2) Max.Min.(2) Max.Unit

tPLH Propagation Delay 1.5 3.8 1.5 3.5 ns

tPHL

tROutput Rise Time — 1.5 — 1.5 ns

tFOutput Fall Time — 1.5 — 1.5 ns

tSK(O) Output skew: skew between outputs of all banks of — 0.5 — 0.35 ns

same package (inputs tied together)

tSK(P) Pulse skew: skew between opposite transitions — 0.6 — 0.45 ns

of same output (|tPHL -– tPLH|)

tSK(T) Package skew: skew between outputs of different — 1 — 0.75 ns

packages at same power supply voltage,

temperature, package type and speed grade

CL = 30pF

f ≤ 40MHz

(See figure 4)

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

NOTES:

1. See test circuits and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

3. tPLH, tPHL, tSK(t) are production tested. All other parameters guaranteed but not production tested.

4. Propagation delay range indicated by Min. and Max. limit is due to VCC, operating temperature and process parameters. These propagation delay limits do not imply skew.

SWITCHING CHARACTERISTICS OVER OPERATING RANGE - INDUSTRIAL(3,4)

FCT807BT FCT807CT

Symbol Parameter Conditions(1) Min.(2) Max.Min.(2) Max.Unit

tPLH Propagation Delay 1.3 2.9 1.3 2.7 ns

tPHL

tROutput Rise Time — 1.5 — 1.5 ns

tFOutput Fall Time — 1.5 — 1.5 ns

tSK(O) Output skew: skew between outputs of all banks of — 0.6 — 0.35 ns

same package (inputs tied together)

tSK(P) Pulse skew: skew between opposite transitions — 0.6 — 0.45 ns

of same output (|tPHL -– tPLH|)

tSK(T) Package skew: skew between outputs of different — 0.9 — 0.65 ns

packages at same power supply voltage,

temperature, package type and speed grade

50Ω to VCC/2,

CL = 10pF

(See figure 1)

or 50Ω ac

termination,

CL = 10pF

(See figure 2)

f ≤ 100MHz

Outputs connected in

groups of two

FCT807BT FCT807CT

Symbol Parameter Conditions(1) Min.(2) Max.Min.(2) Max.Unit

tPLH Propagation Delay 1.5 4 1.5 3.7 ns

tPHL

tROutput Rise Time — 1.5 — 1.5 ns

tFOutput Fall Time — 1.5 — 1.5 ns

tSK(O) Output skew: skew between outputs of all banks of — 0.6 — 0.35 ns

same package (inputs tied together)

tSK(P) Pulse skew: skew between opposite transitions — 0.6 — 0.45 ns

of same output (|tPHL -– tPLH|)

tSK(T) Package skew: skew between outputs of different — 0.9 — 0.75 ns

packages at same power supply voltage,

temperature, package type and speed grade

CL = 30pF

f ≤ 67MHz

(See figure 3)

FCT807BT FCT807CT

Symbol Parameter Conditions(1) Min.(2) Max.Min.(2) Max.Unit

tPLH Propagation Delay 1.5 4 1.5 3.7 ns

tPHL

tROutput Rise Time — 1.5 — 1.5 ns

tFOutput Fall Time — 1.5 — 1.5 ns

tSK(O) Output skew: skew between outputs of all banks of — 0.6 — 0.45 ns

same package (inputs tied together)

tSK(P) Pulse skew: skew between opposite transitions — 0.7 — 0.55 ns

of same output (|tPHL -– tPLH|)

tSK(T) Package skew: skew between outputs of different — 1 — 0.75 ns

packages at same power supply voltage,

temperature, package type and speed grade

CL = 30pF

f ≤ 40MHz

(See figure 4)

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER

Pulse

Generator

D.U.T.

VCC

VIN

VOUT

50pF

Pulse

Generator

D.U.T.

VCC

VIN VOUT

30pF

Pulse

Generator

D.U.T.

VCC

VIN VOUT

50 10pF

220pF

Pulse

Generator

D.U.T.

VCC

VIN VOUT

100

10pF

VCC

Pulse

Generator

D.U.T.

VCC

VIN

VOUT

50pF 500

500

7.0V

The capacitor value for AC termination is determined by the operating frequency. For

very low frequencies a higher capacitor value should be selected.

TEST CIRCUITS

Fig. 5: Enable and Disable Time Circuit

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.

Test Switch

Disable LOW 6V

Enable LOW

Disable HIGH G ND

Enable HIGH

SWITCH POSITION

Fig. 1: 50

ΩΩ

Ω

to VCC/2, CL = 10pF Fig. 2: 50

ΩΩ

Ω

AC Termination, CL = 10pF

Fig. 3: CL = 30pF Circuit Fig. 4: CL = 50pF Circuit

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

tPLH1

OUTPUT 1

OUTPUT 2

tSK(o)

tPLH2

VOH

1.5V

VOL

VOH

1.5V

VOL

INPUT tPHL1

tPHL2

tSK(o)

VOH

tPLH tPHL

VOL

1.5V

tRtF

2.0V

0.8V

INPUT tPLH1

PACKAGE 1 OUTPUT

PACKAGE 2 OUTPUT

tSK(t)

tPLH2

VOH

1.5V

VOL

VOH

1.5V

VOL

tPHL1

tPHL2

tSK(t)

CONTROL

INPUT

1.5V

3.5V

OUTPUT

NORMALLY

LOW

OUTPUT

NORMALLY

HIGH

SWITCH

CLOSED

SWITCH

OPEN

0.3V

tPLZ

tPZL

tPZH tPHZ

3.5V

1.5V

ENABLE DISABLE

tSK(o) = |tPLH2 - tPLH1| or |tPHL2 - tPHL1|

tPLH tPHL

VOH

1.5V

VOL

tSK(p) = |tPHL -

tPLH|

tSK(t) = |tPLH2 - tPLH1| or |tPHL2 - tPHL1|

INPUT

OUTPUT

INPUT

OUTPUT

VOL

VOH

TEST WAVEFORMS

Package Delay

Pulse Skew - tSK(P)

Enable and Disable Times

Output Skew - tSK(O)

Part-to-Part Skew - tSK(T)

NOTES:

1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH

2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns

NOTE:

1. Package 1 and Package 2 are same device type and speed grade.

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

IDT74FCT807BT/CT

FAST CMOS 1-TO-10 CLOCK DRIVER

ORDERING INFORMATION

1-to-10 Clock Driver

IDT74FCT XXXX

Device Type

Package

SOG

PYG

807BT

807CT

Small Outline IC

SOIC - Green

Shrink Small Outline IC

SSOP - Green

Quarter-size Small Outline IC

QSOP - Green

Temp. Range

Blank

Commercial (0°C to +70°C)

Industrial (-40°C to +85°C)

CORPORATE HEADQUARTERS for SALES: for Tech Support:

6024 Silver Creek Valley Road 800-345-7015 or 408-284-8200 clockhelp@idt.com

San Jose, CA 95138 fax: 408-284-2775