© 2000 Fairchild Semiconductor Corporation

DS012018

www.fairchildsemi.com

April 2000

Revised April 2000

74LVTH652

Low Voltage Octal Transceiver/Register

with 3-STATE Outputs

General Description

The LVTH652 consists of bus transceiver circuits with D-

type flip-flops, and control circuitry arranged for multiplexed

transmission of data directly from the input bus or from the

internal registers. Data on the A or B bus will be clocked

into the registers as the appropriate clock pin goes to HIGH

logic level. Output Enable pins (OEAB, OEBA) are pro-

vided to control the transceiver function. (See Functional

Description).

The LVTH652 data inputs include bushold, eliminating the

need for external pull-up resistors to hold unused inputs.

This octal transceiver/register is designed for low-voltage

TTL interface to a 5V environment. The LVTH652 is fabri-

cated with an advanced BiCMOS technology to achieve

high speed operation similar to 5V ABT while maintaining

low power dissipation.

Features

s Input and output interface capability to systems at

s Bushold data inputs eliminate the need for external pull-

up resistors to hold unused inputs

s Live insertion/extraction permitted

s Power Up/Down high impedance provides glitch-free

bus loading

s Outputs source/sink

−32 mA/+64 mA

s Functionally compatible with the 74 series 652

s Latch-up performance exceeds 500 mA

Ordering Code:

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

Logic Symbols

IEEE/IEC

Order Number

Package Number

Package Description

74LVTH652WM

M24B

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide

74LVTH652MTC

MTC24

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