74ALVCH2245 Ver la hoja de datos (PDF) - Fairchild Semiconductor

Número de pieza

componentes Descripción

Fabricante

74ALVCH2245

Low Voltage Bidirectional Transceiver with Bushold and 26Ω Series Resistors in B Outputs

Fairchild Semiconductor 

January 2002

Revised January 2002

74ALVCH2245

Low Voltage Bidirectional Transceiver with Bushold

and 26Ω Series Resistors in B Outputs

General Description

The ALVCH2245 contains eight non-inverting bidirectional

buffers with 3-STATE outputs and is intended for bus ori-

ented applications. The T/R input determines the direction

of data flow. The OE input disables both the A and B Ports

by placing them in a high impedance state. The

ALVCH2245 data inputs include active bushold circuitry,

eliminating the need for external pull-up resistors to hold

unused or floating data inputs at a valid logic level.

The 74ALVCH2245 is designed for low voltage (1.65V to

3.6V) VCC applications. The ALVCH2245 is also designed

with 26Ω series resistance in the B Port outputs. This

design reduces line noise in applications such as memory

address drivers, clock drivers, and bus transceivers trans-

mitters

The 74ALVCH2245 is fabricated with an advanced CMOS

technology to achieve high-speed operation while main-

taining low CMOS power dissipation.

Features

s 1.65V to 3.6V VCC supply operation

s 3.6V tolerant control inputs

s Bushold on data inputs eliminates the need for external

pull-up/pull-down resistors

s 26Ω series resistors in B Port outputs

s tPD (A to B)

4.9 ns max for 3.0V to 3.6V VCC

6.1 ns max for 2.3V to 2.7V VCC

9.8 ns max for 1.65V to 1.95V VCC

s Uses patented Quiet Series noise/EMI reduction

circuitry

s Latchup conforms to JEDEC JED78

s ESD performance:

Human body model > 2000V

Machine model > 200V

Ordering Code:

Order Number Package Number

Package Description

74ALVCH2245WM

M20B

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

74ALVCH2245MTC

MTC20

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbol

Connection Diagram

Quiet Series is a trademark of Fairchild Semiconductor Corporation.

© 2002 Fairchild Semiconductor Corporation ds500716

www.fairchildsemi.com

Share Link: