MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage CMOS
16-Bit Transceiver
With 5V-Tolerant Inputs and Outputs
(3-State, Non-Inverting)
The MC74LCX16245 is a high performance, non–inverting 16–bit
transceiver operating from a 2.7 to 3.6V supply. The device is byte
controlled. Each byte has separate Output Enable inputs which can be
tied together for full 16–bit operation. High impedance TTL compatible
inputs significantly reduce current loading to input drivers while TTL
compatible outputs offer improved switching noise performance. A VI
specification of 5.5V allows MC74LCX16245 inputs to be safely driven
from 5V devices. The MC74LCX16245 is suitable for memory address
driving and all TTL level bus oriented transceiver applications.
4.5ns maximum propagation delays support high performance
applications. Current drive capability is 24mA at both A and B ports. The
Transmit/Receive (T/Rn) inputs determine the direction of data flow
through the bi–directional transceiver. Transmit (active–HIGH) enables
data from A ports to B ports; Receive (active–LOW) enables data from B
to A ports. The Output Enable inputs (OEn), when HIGH, disable both A
and B ports by placing them in a HIGH Z condition.
MC74LCX16245
LOW–VOLTAGE
CMOS 16–BIT TRANSCEIVER
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Designed for 2.7 to 3.6V VCC Operation
4.5ns Maximum tpd
5V Tolerant — Interface Capability With 5V TTL Logic
Supports Live Insertion and Withdrawal
IOFF Specification Guarantees High Impedance When VCC = 0V
LVTTL Compatible
LVCMOS Compatible
24mA Balanced Output Sink and Source Capability
PIN NAMES
Pins
OEn
T/Rn
A0–A15
B0–B15
Function
Output Enable Inputs
Transmit/Receive Inputs
Side A Inputs or 3–State Outputs
Side B Inputs or 3–State Outputs
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1201–01
Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
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Latchup Performance Exceeds 500mA
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ESD Performance: Human Body Model >2000V;
Machine Model >200V
9/96
©
Motorola, Inc. 1996
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REV 1
MOTOROLA [ MOTOROLA, INC ]
