HD74LVCR2245A Просмотр технического описания (PDF) - Renesas Electronics

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HD74LVCR2245A

Octal Bidirectional Transceivers with 3–state Outputs

Renesas Electronics 

HD74LVCR2245A

Octal Bidirectional Transceivers with 3–state Outputs

REJ03D0377–0400

(Previous ADE-205-235B (Z))

Rev.4.00

Aug. 20, 2004

Description

The HD74LVCR2245A has eight buffers with three state outputs in a 20 pin package. When (T / R) is high, data flows

from the A inputs to the B outputs, and when (T / R) is low, data flows from the B inputs to the A outputs. A and B bus

are separated by making enable input (OE) high level.

All outputs, which are designed to sink up to 12mA, include equivalent 26 Ω resistors to reduce overshoot and

undershoot.

Low voltage and high-speed operation is suitable at battery drive product (note type personal computer) and low power

consumption extends the life of a battery for long time operation.

Features

• VCC = 1.65 to 5.5 V

• All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V)

• All inputs / outputs VI / O (Max) = 5.5 V (@VCC = 0 V or output off state)

• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)

• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)

• High output current ±12mA (@VCC = 3.0 to 5.5 V)

• All outputs have equivalent 26 Ω series resistors, so no external resistors are required

• Ordering Information

Part Name

Package Type

Package Code

Package

Abbreviation

HD74LVCR2245AFPEL SOP–20 pin (JEITA) FP–20DAV

FP

HD74LVCR2245ATELL TSSOP–20 pin

TTP–20DAV

T

Note: Please consult the sales office for the above package availability.

Taping Abbreviation

(Quantity)

EL (2,000 pcs/reel)

ELL (2,000 pcs/reel)

Function Table

Inputs

OE

L

L

H

H: High level

L: Low level

X: Immaterial

Z: High impedance

T/R

L

H

X

Operation

B data to A bus

A data to B bus

Z

Rev.4.00 Aug. 20, 2004 page 1 of 9

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