74LVT322373 Datasheet, PDF(1/6 Page) Fairchild Semiconductor – Low Voltage 32-Bit Transparent Latch with 3-STATE Outputs and 25Ω Series Resistors in the Outputs

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74LVT322373 Datasheet, PDF (1/6 Pages) Fairchild Semiconductor – Low Voltage 32-Bit Transparent Latch with 3-STATE Outputs and 25Ω Series Resistors in the Outputs

May 2002

Revised May 2002

74LVT322373 â¢ 74LVTH322373

Low Voltage 32-Bit Transparent Latch

with 3-STATE Outputs

and 25â¦ Series Resistors in the Outputs

General Description

The LVT322373 and LVTH322373 contain thirty-two non-

inverting latches with 3-STATE outputs and are intended

for bus oriented applications. The device is byte controlled.

The flip-flops appear transparent to the data when the

Latch Enable (LE) is HIGH. When LE is LOW, the data that

meets the setup time is latched. Data appears on the bus

when the Output Enable (OE) is LOW. When OE is HIGH,

the outputs are in a high impedance state.

The LVTH322373 data inputs include bushold, eliminating

the need for external pull-up resistors to hold unused

inputs.

These latches are designed for low voltage (3.3V) VCC

applications, but with the capability to provide a TTL inter-

face to a 5V environment. The LVT322373 and

LVTH322373 are fabricated with an advanced BiCMOS

technology to achieve high speed operation similar to 5V

ABT while maintaining a low power dissipation.

Features

s Input and output interface capability to systems at

5V VCC

s Bushold data inputs eliminate the need for external

pull-up resistors to hold unused inputs (74LVTH322373),

also available without bushold feature (74LVT322373)

s Live insertion/extraction permitted

s Power Up/Down high impedance provides glitch-free

bus loading

s Outputs include equivalent series resistance of 25â¦ to

make external termination resistors unnecessary and

reduce overshoot and undershoot

s ESD performance:

Human-body model > 2000V

Machine model > 200V

Charged-device model > 1000V

s Packaged in plastic Fine-Pitch Ball Grid Array (FBGA)

Ordering Code:

Order Number Package Number

Package Description

74LVT322373G

(Note 1) (Note 2)

BGA96A

96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide

(Preliminary)

74LVTH322373G

(Note 1) (Note 2)

BGA96A

96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide

Note 1: Ordering Code âGâ indicates Trays.

Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter âXâ to the ordering code.

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