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DESCRIPTION/ORDERING INFORMATION

SN74LVC32373A

32-BIT TRANSPARENT D-TYPE LATCH

WITH 3-STATE OUTPUTS

SCES575 – JUNE 2004 – REVISED AUGUST 2005

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Member of the Texas Instruments Widebus+™

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I

Family

Operation

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Operates From 1.65 V to 3.6 V

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Supports Mixed-Mode Signal Operation (5-V

Input and Output Voltages With 3.3-V V

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Inputs Accept Voltages to 5.5 V

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Latch-Up Performance Exceeds 100 mA Per

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Max t

JESD 78, Class II

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Typical V

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ESD Protection Exceeds JESD 22

at V

– 2000-V Human-Body Model (A114-A)

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Typical V

V

– 1000-V Charged-Device Model (C101)

The SN74LVC32373A is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers,

and working registers. It can be used as four 8-bit latches, two 16-bit latches, or one 32-bit latch. When the

latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are

latched at the levels set up at the D inputs.

A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or

low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the

bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines

without interface or pullup components.

OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while

the outputs are in the high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators

in a mixed 3.3-V/5-V system environment.

preventing damaging current backflow through the device when it is powered down.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

LFBGA – GKE

SN74LVC32373AGKER

–40

°C to 85°C

Tape and reel

NC373A

LFBGA – ZKE (Pb-free)

SN74LVC32373AZKER

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Widebus+ is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.