74VCX162245 Low Voltage 16-Bit Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs and 26鈩?Series
Resistors in A Port Outputs
October 1996
Revised April 1999
74VCX162245
Low Voltage 16-Bit Bidirectional Transceiver with 3.6V
Tolerant Inputs and Outputs and 26鈩?Series Resistors in
A Port Outputs
General Description
The VCX162245 contains sixteen non-inverting bidirec-
tional buffers with 3-STATE outputs and is intended for bus
oriented applications. The device is byte controlled. Each
byte has separate 3-STATE control inputs which can be
shorted together for full 16-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 74VCX162245 is designed for low voltage (1.65V to
3.6V) V
CC
applications with I/O compatibility up to 3.6V.
The 74VCX162245 is also designed with 26鈩?series resis-
tance in the A Port outputs. This design reduces line noise
in applications such as memory address drivers, clock driv-
ers, and bus transceivers/transmitters.
The 74VCX162245 is fabricated with an advanced CMOS
technology to achieve high speed operation while maintain-
ing low CMOS power dissipation.
Features
s
1.65V鈥?.6V V
CC
supply operation
s
3.6V tolerant inputs and outputs
s
26鈩?series resistors in A port outputs
s
t
PD
(B to A)
3.4 ns max for 3.0V to 3.6V V
CC
4.3 ns max for 2.3V to 2.7V V
CC
8.6 ns max for 1.65V to 1.95V V
CC
s
Power-down high impedance inputs and outputs
s
Supports live insertion/withdrawal (Note 1)
s
Static Drive (I
OH
/I
OL
A outputs)
鹵12
mA @ 3.0V V
CC
鹵8
mA @ 2.3V V
CC
鹵3
mA @ 1.65V V
CC
s
Uses patented noise/EMI reduction circuitry
s
Latchup performance exceeds 300 mA
s
ESD performance:
Human body model
>
2000V
Machine model
>200V
Note 1:
To ensure the high-impedance state during power up or power
down, OE should be tied to V
CC
through a pull-up resistor; the minimum
value of the resistor is determined by the current-sourcing capability of the
driver.
Ordering Code:
Order Number
74VCX162245MTD
Package Number
MTD48
Package Description
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
Pin Descriptions
Pin
Description
Names
OE
n
T/R
n
A
0
鈥揂
15
B
0
鈥揃
15
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
漏 1999 Fairchild Semiconductor Corporation
DS500048.prf
www.fairchildsemi.com
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