IDT5962-9225702MXA - Integrated Device Technology, Inc.

IDT54/74FCT16244T/AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND INDUSTRIAL TEMPERATURE RANGES

APRIL 2002

IDT54/74FCT16244T/AT/CT

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

FAST CMOS 16-BIT

BUFFER/LINE DRIVER

DESCRIPTION:

The FCT16244T 16-Bit Buffer/Line Driver is for bus interface or signal

buffering applications requiring high speed and low power dissipation. These

devices have a flow through pin organization, and shrink packaging to simplify

board layout. All inputs are designed with hysteresis for improved noise margin.

The three-state controls allow independent 4-bit, 8-bit or combined 16-bit

operation. These parts are plug in replacements for 54/74ABT16244 where

higher speed, lower noise or lower power dissipation levels are desired.

The FCT16244T is ideally suited for driving high capacitance loads

(>200pF) and low impedance backplanes. These "high drive" buffers are

designed with power off disable capability to allow "live insertion" of boards when

used in a backplane interface.

3OE

3A1

3A2

3A3

3A4

3Y1

3Y2

3Y3

3Y4

1Y1

1Y2

1Y3

1Y4

1A1

1A2

1A3

1A4

1OE

4OE

4A1

4A2

4A3

4A4

4Y1

4Y2

4Y3

4Y4

2OE

2A1

2A2

2A3

2A4

2Y1

2Y2

2Y3

2Y4

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

FEATURES:

• 0.5 MICRON CMOS Technology

• High-speed, low-power CMOS replacement for ABT functions

• Typical tSK(o) (Output Skew) < 250ps

• Low input and output leakage ≤≤

≤≤

≤ 1µA (max.)

• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using

machine model (C = 200pF, R = 0)

• High drive outputs (–32mA IOH, 64mA IOL)

• Power off disable outputs permit “live insertion”

• Typical VOLP (Output Ground Bounce) < 1.0V at VCC = 5V,

TA = 25°C

• Available in the following packages:

– Industrial: SSOP, TSSOP, TVSOP

– Military: CERPACK

FUNCTIONAL BLOCK DIAGRAM

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

IDT54/74FCT16244T/AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER

SSOP/ TSSOP/ TVSOP/ CERPACK

TOP VIEW

PIN CONFIGURATION

1Y1

GND

1Y3

VCC

GND

3Y2

GND

VCC

GND

1Y2

1Y4

2Y1

2Y2

2Y3

2Y4

3Y1

3Y3

3Y4

4Y1

4Y3

4Y4

4Y2

4OE

1A1

1A2

GND

1A3

1A4

VCC

2A1

2A2

2A3

2A4

3A1

3A2

3A3

3A4

VCC

4A1

4A3

4A4

4A2

GND

2OE

3OE

1OE

Symbol Description Max Unit

VTERM(2) Terminal Voltage with Respect to GND –0.5 to +7 V

VTERM(3) Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V

TSTG Storage Temperature –65 to +150 °C

IOUT DC Output Current –6 0 to +120 mA

ABSOLUTE MAXIMUM RA TINGS(1)(1)

(1)(1)

(1)

NOTES:

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.

2. All device terminals except FCT162XXXT Output and I/O terminals.

3. Output and I/O terminals terminals for FCT162XXXT and FCT166XXXT.

Symbol Parameter(1) Conditions Typ. Max. Unit

CIN Input Capacitance VIN = 0V 3.5 6 pF

COUT Output Capacitance VOUT = 0V 3.5 8 pF

CAPACITANCE (TA = +25°C, F = 1.0MHz)

NOTE:

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

Pin Names Description

xOE 3-State Output Enable Inputs (Active LOW)

xAx Data Inputs

xYx 3-State Outputs

PIN DESCRIPTION

NOTE:

1 . H = HIGH Voltage Level

X = Don’t Care

L = LOW Voltage Level

Z = High-Impedance

Inputs Outputs

xOE xAx xYx

LLL

LHH

HXZ

FUNCTION TABLE(1)

IDT54/74FCT16244T/AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND INDUSTRIAL TEMPERATURE RANGES

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

VIH Input HIGH Level Guaranteed Logic HIGH Level 2 — — V

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

IIH Input HIGH Current (Input pins)(5) VCC = Max. VI = VCC ——±1µA

Input HIGH Current (I/O pins)(5) ——±1

IIL Input LOW Current (Input pins)(5) VI = GND — — ±1

Input LOW Current (I/O pins)(5) ——±1

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

IOZL (3-State Output pins)(5) VO = 0.5V — — ±1

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

IOS Short Circuit Current VCC = Max., VO = GND(3) –80 –140 –250 mA

VHInput Hysteresis — — 100 — m V

ICCL Quiescent Power Supply Current VCC = Max. — 5 500 µA

ICCH VIN = GND or VCC

ICCZ

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Industrial: TA = –40°C to +85°C, VCC = 5.0V ±10%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%

OUTPUT DRIVE CHARACTERISTICS

NOTES:

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

2. Typical values are at VCC = 5.0V, +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 can not exceed one second.

5 . The test limit for this parameter is ±5µA at TA = –55°C.

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

IOOutput Drive Current VCC = Max., VO = 2.5V(3) –50 — –180 mA

VOH Output HIGH Voltage VCC = Min. IOH = –3mA, 2.5 3.5 — V

VIN = VIH or VIL IOH = –12mA MIL 2.4 3.5 — V

IOH = –15mA IND

IOH = –24mA MIL 2 3 — V

IOH = –32mA IND(4)

VOL Output LOW Voltage VCC = Min. IOL = 48mA MIL — 0.2 0.55 V

VIN = VIH or VIL IOL = 64mA IND

IOFF Input/Output Power Off Leakage(5) VCC = 0V, VIN or VO ≤ 4.5V — — ±1 µA

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

IDT54/74FCT16244T/AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER

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

∆ICC Quiescent Power Supply Current VCC = Max. — 0.5 1.5 mA

TTL Inputs HIGH VIN = 3.4V(3)

ICCD Dynamic Power Supply VCC = Max. VIN = VCC — 60 100 µA/

Current(4) Outputs Open VIN = GND M Hz

xOE = GND

One Input Togging

50% Duty Cycle

ICTotal Power Supply Current(6) VCC = Max. VIN = VCC — 0.6 1.5 mA

Outputs Open VIN = GND

fi = 10MHz

50% Duty Cycle VIN = 3.4V — 0.9 2.3

xOE = GND VIN = GND

One Bit Toggling

VCC = Max. VIN = VCC — 2.4 4.5(5)

Outputs Open VIN = GND

fi = 2.5MHz

50% Duty Cycle

xOE = GND VIN = 3.4V — 6.4 16.5(5)

Sixteen BitsTogging VIN = GND

POWER SUPPLY CHARACTERISTICS

NOTES:

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

2. Typical values are at VCC = 5.0V, +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 ICC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC + ∆ICC DHNT + ICCD (fCPNCP/2 + fiNi)

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)

fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

NCP = Number of Clock Inputs at fCP

fi = Input Frequency

Ni = Number of Inputs at fi

54FCT16244T 54/74FCT16244AT 54/74FCT16224CT

Mil. Ind. Mil. Ind. Mil.

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

tPLH Propagation Delay CL = 50pF 1.5 7 1.5 4.8 1.5 5.1 1.5 3.4 1.5 4.6 ns

tPHL xAx to xYx RL = 500Ω

tPZH Output Enable Time 1.5 8.5 1.5 6.2 1.5 6.5 1.5 4.4 1.5 6.5 ns

tPZL

tPHZ Output Disable Time 1.5 7.5 1.5 5.6 1.5 5.9 1.5 3.9 1.5 5.7 ns

tPLZ

tSK(o) Output Skew(3) — 0.5 — 0.5 — 0.5 — 0.5 — 0.5 ns

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

NOTES:

1. See test circuit and waveforms.

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

3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

IDT54/74FCT16244T/AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER MILITARY AND INDUSTRIAL TEMPERATURE RANGES

Pulse

Generator

D.U.T.

VCC

VIN

VOUT

50pF 500Ω

500Ω

7.0V

1.5V

DATA

INPUT

TIMING

INPUT

ASYNCHRONOUS CONTROL

PRESET

CLEAR

ETC.

SYNCHRONOUS CONTROL

tSU tH

tREM

tSU tH

PRESET

CLEAR

CLOCK ENABLE

ETC.

HIGH-LOW-HIGH

PULSE

LOW-HIGH-LOW

PULSE

1.5V

SAME PHASE

INPUT TRANSITION

1.5V

VOH

tPLH

OUTPUT

OPPOSITE PHASE

INPUT TRANSITION

1.5V

tPLH tPHL

tPHL

VOL

CONTROL

INPUT

1.5V

3.5V

OUTPUT

NORMALLY

LOW

OUTPUT

NORMALLY

HIGH

SWITCH

CLOSED

SWITCH

OPEN

VOL

0.3V

tPLZtPZL

tPZH tPHZ

3.5V

1.5V

ENABLE DISABLE

VOH

TEST CIRCUITS AND WAVEFORMS

Propagation Delay

Test Circuits for All Outputs

Enable and Disable Times

Set-up, Hold, and Release Times

Pulse Width

Test Switch

Open Drain

Disable Low Closed

Enable Low

All Other Tests Open

SWITCH POSITION

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

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

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.

MILITARY AND INDUSTRIAL TEMPERATURE RANGES

IDT54/74FCT16244T/AT/CT

FAST CMOS 16-BIT BUFFER/LINE DRIVER

ORDERING INFORMATION

IDT XX

Temp. Range XXXX

Device Type XX

Package X

Process

PAG

Industrial Options

Shrink Small Outline Package

Thin Shrink Small Outline Package

TSSO P - Green

Thin Very Small Outline Package

16-Bit Buffer/Line Driver

74 – 55°C to +125°C

– 40°C to +85°C

16 Double-Density, 5 Volt, Balanced Drive

EMilitary Options

CERPACK

Blank

BIndustrial

MIL-STD-883, Class B

FCT XXX

Family

244T

244AT

244CT

CORPORATE HEADQUARTERS for SALES: for Tech Support:

2975 Stender Way 800-345-7015 or 408-727-6116 logichelp@idt.com

Santa Clara, CA 95054 fax: 408-492-8674 (408) 654-6459

www.idt.com

3/26/2002 Removed standard speed grade

6/26/2002 Updated as per PDNs Logic-00-07 and Logic-01-04

DATA SHEET DOCUMENT HISTORY