PI74FCT2543T 查看數據表（PDF） - Pericom Semiconductor

零件编号

产品描述 (功能)

比赛名单

PI74FCT2543T

Fast CMOS Latched Transceivers

Pericom Semiconductor 

PI74FCT543T/544T

(25Ω Series) PI74FCT2543T

(25Ω SerPieIs7)4PFIC7T4F54C3TT2/554434TT Latched Transceivers 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122

1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122

Fast CMOS

Latched Transceivers

Product Features

• PI74FCT543T/544/2543T is pin compatible with bipolar

FAST™ Series at a higher speed and lower power

consumption

• 25Ω series resistor on all outputs

• TTL input and output levels

• Low ground bounce outputs

• Extremely low static power

• Hysteresis on all inputs

• Industrial operating temperature range: –40°C to +85°C

• Packages available:

– 24-pin 300 mil wide plastic DIP (P)

– 24-pin 150 mil wide plastic QSOP (Q)

– 24-pin 150 mil wide plastic TQSOP (R)

– 24-pin 300 mil wide plastic SOIC (S)

• Device models available on request

PI74FCT543/544/2543T Logic Block Diagram

Product Description

Pericom Semiconductor’s PI74FCT series of logic circuits are

produced using the Company’s advanced 0.8 micron CMOS

technology, achieving industry leading speed grades. All

PI74FCT2XXX devices have a built-in 25 ohm series resistor on all

outputs to reduce noise because of reflections, thus eliminating the

need for an external terminating resistor.

The PI74FCT543T/544T and PI74FCT2543T is an 8-bit wide non-

inverting transceiver designed 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 (CEAB) input must be

LOW in order to enter data from A0–A7 or to take data from B0–B7,

as indicated in the Truth Table. With CEAB LOW, a LOW signal

makes the A-to-B latches transparent; a subsequent LOW-to-HIGH

transition of the LEAB signal puts the A latches in the storage mode

and their outputs no longer change the A inputs. With CEAB and

OEAB 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 CEAB, LEAB, and OEAB inputs. The

PI74FCT543T is a non-inverting of the PI74FCT544T.

A0

A1

A2

A3

A4

A5

A6

A7

OEBA

CEBA

LEBA

DQ

LE

DETAIL A

QD

LE

DETAIL A x 7

B0

B1

B2

B3

B4

B5

B6

B7

NOTE: PI74FCT543/2543T function is shown.

1

OEAB

CEAB

LEAB

PS2020A 03/11/96

Share Link: