CY74FCT2541AT Datasheet PDF

CY74FCT2541AT View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

CY74FCT2541AT

8-Bit Buffer/Line Driver

Unspecified

CY74FCT2541AT Datasheet PDF : 6 Pages

1 2 3 4 5 6

Data sheet acquired from Cypress Semiconductor Corporation.

Data sheet modiﬁed to remove devices not offered.

CY74FCT2541T

SCCS041 - September 1994 - Revised March 2000

8-Bit Buffer/Line Driver

Features

• Function and pinout compatible with FCT and F logic

• FCT-C speed at 4.1 ns max.

FCT-A speed at 4.8 ns max.

• 25Ω output series to reduce transmission line reﬂection

noise

• Reduced VOH (typically = 3.3V) versions of equivalent

FCT functions

• Edge-rate control circuitry for signiﬁcantly improved

noise characteristics

• Power-off disable feature

• ESD > 2000V

• Matched rise and fall times

• Fully compatible with TTL input and output logic levels

• Sink current

12 mA

Source current 15 mA

• Extended commercial temp. range of –40˚C to +85˚C

• Three-state outputs

Functional Description

The FCT2541T is an octal buffer and line driver designed

to be employed as a memory address driver, clock driver,

and bus-oriented transmitter/receiver. On-chip termination resistors

have been added to the outputs to reduce system noise caused by

reflections. The FCT2541T can be used to replace the FCT541T to

reduce noise in an existing design. The speed of the FCT2541T is

comparable to bipolar logic counterparts while reducing power dis-

sipation. The input and output voltage levels allow direct interface

with TTL and CMOS devices without external components.

The outputs are designed with a power-off disable feature to

allow for live insertion of boards.

Logic Block Diagram

OEA

OEB

FCT2541T–3

Pin Configurations

SOIC/QSOP

Top View

OEA 1

D0 2

D1 3

D2 4

D3 5

D4 6

D5 7

D6 8

D7 9

GND 10

20 VCC

OE B

FCT2541T–2

]

Function Table[1]

Inputs

OEA

OEB

Note:

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don’t Care

Z = High Impedance

Output

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