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74LVT322373 Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. 74LVT322373
Description  Low Voltage 32-Bit Transparent Latch with 3-STATE Outputs and 25Ω Series Resistors in the Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74LVT322373 Datasheet(HTML) 1 Page - Fairchild Semiconductor

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© 2002 Fairchild Semiconductor Corporation
DS500742
www.fairchildsemi.com
May 2002
Revised May 2002
74LVT322373 • 74LVTH322373
Low Voltage 32-Bit Transparent Latch
with 3-STATE Outputs
and 25
Ω 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 25
Ω 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:
Note 1: Ordering Code “G” indicates Trays.
Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol
Order Number
Package Number
Package Description
74LVT322373G
(Note 1) (Note 2)
BGA96A
(Preliminary)
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
74LVTH322373G
(Note 1) (Note 2)
BGA96A
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide


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