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دیتاشیت - Fairchild Semiconductor - Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25ohm Series Resistors in A Port Outputs

شماره قطعه 74LVTH322245
شرح مفصل Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25ohm Series Resistors in A Port Outputs
تولید کننده Fairchild Semiconductor 
آرم Fairchild Semiconductor 


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74LVTH322245 شرح
May 2002
Revised May 2002
74LVT322245 74LVTH322245
Low Voltage 32-Bit Transceiver with 3-STATE Outputs
and 25Series Resistors in A Port Outputs
General Description
The LVT322245 and LVTH322245 contain thirty-two non-
inverting bidirectional buffers with 3-STATE outputs and are
intended for bus oriented applications. The device is byte
controlled. Each byte has separate control inputs which
can be shorted together for full 32-bit operation. The T/R
inputs determine the direction of data flow through the
device. The OE inputs disable both the A and B ports by
placing them in a high impedance state.
The LVT322245 and LVTH322245 are designed with
equivalent 25series resistance in both the HIGH and
LOW states on the A Port outputs. This design reduces line
noise in applications such as memory address drivers,
clock drivers, and bus transceivers/transmitters.
The LVTH322245 data inputs include bushold, eliminating
the need for external pull-up resistors to hold unused
inputs.
These non-inverting transceivers are designed for low-volt-
age (3.3V) VCC applications, but with the capability to pro-
vide a TTL interface to a 5V environment. The
LVT322245 and LVTH322245 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 (74LVTH322245)
s Also available without bushold feature (74LVT322245)
s Live insertion/extraction permitted
s Power Up/Power Down high impedance provides
glitch-free bus loading
s A Port outputs include equivalent series resistance of
25making external termination resistors unnecessary
and reducing overshoot and undershoot
s A Port outputs source/sink ±12 mA
B Port outputs source/sink 32 mA/+64 mA
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
74LVT322245G
(Note 1) (Note 2)
BGA96A
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
(Preliminary)
74LVTH322245G
(Note 1) (Note 2)
BGA96A
96-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide
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
© 2002 Fairchild Semiconductor Corporation DS500408
www.fairchildsemi.com

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شماره قطعه شرح مفصل تولید کنندگان
74LVTH322245 Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25ohm Series Resistors in A Port Outputs Fairchild Semiconductor
Fairchild Semiconductor
74LVTH322245G Low Voltage 32-Bit Transceiver with 3-STATE Outputs and 25 Series Resistors in A Port Outputs Fairchild Semiconductor
Fairchild Semiconductor

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