IDT54FCT16543ATEB datasheet, PDF

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IDT54FCT16543ATEB: DescriptionFAST CMOS 16-BIT LATCHED TRANSCEIVER; File Size83KB，8 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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IDT54FCT16543ATEB Overview

FAST CMOS 16-BIT LATCHED TRANSCEIVER

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FAST CMOS

16-BIT LATCHED

TRANSCEIVER

Integrated Device Technology, Inc.

IDT54/74FCT16543T/AT/CT/ET

IDT54/74FCT162543T/AT/CT/ET

FEATURES:

• Common features:

– 0.5 MICRON CMOS Technology

– High-speed, low-power CMOS replacement for

ABT functions

–

Typical t

(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)

– 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

– V

= 5V

±10%

• Features for FCT16543T/AT/CT/ET:

– High drive outputs (-32mA I

, 64mA I

)

– Power off disable outputs permit “live insertion”

– Typical V

OLP

(Output Ground Bounce) < 1.0V at

= 5V, T

= 25°C

• Features for FCT162543T/AT/CT/ET:

– Balanced Output Drivers:

±24mA

(commercial),

±16mA

(military)

– Reduced system switching noise

– Typical V

OLP

(Output Ground Bounce) < 0.6V at

= 5V,T

= 25°C

DESCRIPTION:

The FCT16543T/AT/CT/ET and FCT162543T/AT/CT/ET

16-bit latched transceivers are built using advanced dual metal

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

organized as two independent 8-bit D-type latched transceiv-

ers with separate input and output control to permit indepen-

dent control of data flow in either direction. For example, the A-

to-B Enable (x

CEAB

) must be LOW in order to enter data from

the A port or to output data from the B port. x

LEAB

controls the

latch function. When x

LEAB

is LOW, the latches are transpar-

ent. A subsequent LOW-to-HIGH transition of x

LEAB

signal

puts the A latches in the storage mode. x

OEAB

performs output

enable function on the B port. Data flow from the B port to the

A port is similar but requires using x

CEBA

, x

LEBA

, and x

OEBA

inputs. Flow-through organization of signal pins simplifies

layout. All inputs are designed with hysteresis for improved

noise margin.

The FCT16543T/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 FCT162543T/AT/CT/ET have balanced output drive

with current limiting resistors. This offers low ground bounce,

minimal undershoot, and controlled output fall times–reducing

the need for external series terminating resistors. The

FCT162543T/AT/CT/ET are plug-in replacements for the

FCT16543T/AT/CT/ET and 54/74ABT16543 for on-board bus

interface applications.

FUNCTIONAL BLOCK DIAGRAM

OEBA

CEBA

LEBA

OEAB

CEAB

LEAB

OEBA

CEBA

LEBA

OEAB

CEAB

LEAB

TO 7 OTHER CHANNELS

2618 drw 01

TO 7 OTHER CHANNELS

2618 drw 02

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES

Integrated Device Technology, Inc.

SEPTEMBER 1996

DSC-2618/7

5.12

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