PI74FCT16543T datasheet, PDF - EEWORLD Datasheet

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PI74FCT16543T: DescriptionFast CMOS 16-Bit Latched Transceivers; File Size56KB，7 Pages; ManufacturerPericom Semiconductor Corporation (Diodes Incorporated); Websitehttps://www.diodes.com/

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PI74FCT16543T Overview

Fast CMOS 16-Bit Latched Transceivers

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PI74FCT16543T

PI74FCT162543T

PI74FCT162H543T

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321

Fast CMOS 16-Bit

Latched Transceivers

Product Features:

Common Features:

• PI74FCT16543T, PI74FCT162543T and PI74FCT162H543T

are high-speed,

low power devices with high current drive.

• V

= 5V ±10%

• Hysteresis on all inputs

• Packages available:

– 56-pin 240 mil wide plastic TSSOP (A)

– 56-pin 300 mil wide plastic SSOP (V)

PI74FCT16543T Features:

• High output drive: I

= –32 mA; I

= 64 mA

• Power off disable outputs permit “live insertion”

• Typical V

OLP

(Output Ground Bounce) < 1.0V

at V

= 5V, T

= 25°C

PI74FCT162543T Features:

• Balanced output drivers: ±24 mA

• Reduced system switching noise

• Typical V

OLP

(Output Ground Bounce) < 0.6V

at V

= 5V, T

= 25°C

PI74FCT162H543T Features:

•

Bus Hold retains last active state during 3-state

• Eliminates the need for external pull-up resistors

Product Description:

Pericom Semiconductor’s PI74FCT series of logic circuits are pro-

duced in the Company’s advanced 0.6 micron CMOS technology,

achieving industry leading speed grades.

ThePI74FCT16543T,PI74FCT162543TandPI74FCT162H543T are 16-

bit latched transceivers organized with two sets of eight

D-type latches with separate input and output controls for each set.

For data flow from A to B, for example, the A-to-B Enable

(xCEAB) input must be LOW in order to enter data from xAx or to

take data from xBx, as indicated in the Truth Table. With xCEAB

LOW, a LOW signal makes the A-to-B latches transparent; a

subsequent LOW-to-HIGH transition of the xLEAB signal puts the

A latches in the storage mode and their outputs no longer change the

A inputs. With xCEAB and xOEAB both LOW, the 3-state B output

buffers are active and reflect the data present at the output of the A

latches. Control of data from B to A is similar, but uses the xCEBA,

xLEBA, and xOEBA inputs.

The PI74FCT16543T output buffers are designed with a Power-Off

disable allowing “live insertion”of boards when used as backplane

drivers.

The PI74FCT162543T has ±24 mA balanced output drivers. It is

designed with current limiting resistors at its outputs to control the

output edge rate resulting in lower ground bounce and undershoot.

This eliminates the need for external terminating resistors for most

interface applications.

The PI74FCT162H543T has “Bus Hold” which retains the input’s

last state whenever the input goes to high-impedance preventing

“floating” inputs and eliminating the need for pull-up/down

resistors.

OEBA

Logic Block Diagram

OEBA

CEBA

LEBA

OEAB

LEBA

OEAB

CEAB

LEAB

TO 7 OTHER CHANNELS

PS2038B

01/10/01

PI74FCT16543T Related Products

	PI74FCT16543T	PI74FCT162543T	PI74FCT162H543T
Description	Fast CMOS 16-Bit Latched Transceivers	Fast CMOS 16-Bit Latched Transceivers	Fast CMOS 16-Bit Latched Transceivers

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