MILITARY AND COMMERCIAL TEMPERATURE RANGES

AUGUST 1996

©1996 Integrated Device Technology, Inc.

5.1

DSC–4226/9

1

Integrated Device Technology, Inc.

DESCRIPTION:

The FCT16240T/AT/CT/ET and FCT162240T/AT/CT/ET

16-bit buffer/line drivers are built using advanced dual metal

CMOS technology. These high-speed, low-power devices

offer bus/backplane interface capability with improved packing

density. The flow-through organization of signal pins simplifies

layout. The three-state controls are designed to operate these

devices in a Quad-Nibble, Dual-Byte or single 16-bit word

mode. All inputs are designed with hysteresis for improved

noise margin.

The FCT16240T/AT/CT/ET are ideally suited for driving

high capacitance loads and low-impedance backplanes. The

output buffers are designed with power off disable capability

to allow "live insertion" of boards when used as backplane

drivers.

The FCT162240T/AT/CT/ET have balanced output drive

with current limiting resistors. This offers low ground bounce,

minimal undershoot, and controlled output fall times– reduc-

ing the need for external series terminating resistors. The

FCT162240T/AT/CT/ET are plug-in replacements for

FCT16240T/AT/CT/ET and 54/74ABT16240 for on-board in-

terface applications.

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

FAST CMOS 16-BIT

BUFFER/LINE DRIVER

FUNCTIONAL BLOCK DIAGRAM

1

OE

1

1

1

1

1

1

1

1

2

OE

2

2

2

2

2

2

2

2

2541 drw 01

3

OE

3

3

3

3

3

3

3

3

4

OE

4

4

4

4

4

4

4

4

2541 drw 02

IDT54/74FCT16240T/AT/CT/ET

IDT54/74FCT162240T/AT/CT/ET

FEATURES:

• Common features:

–

0.5 MICRON CMOS Technology

–

High-speed, low-power CMOS replacement for

ABT functions

–

–

Low input and output leakage

≤1µA (max.)

–

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

> 200V using machine model (C = 200pF, R = 0)

–

Packages include 25 mil pitch SSOP, 19.6 mil pitch

TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack

–

Extended commercial range of -40

°C to +85°C

±10%

• Features for FCT16240T/AT/CT/ET:

–

–

Power off disable outputs permit “live insertion”

–

°C

• Features for FCT162240T/AT/CT/ET:

–

Balanced Output Drivers:

±24mA (commercial),

±16mA (military)

–

Reduced system switching noise

–

°C