MC74LCX16240A Datasheet, PDF (1/6 Pages) Motorola, Inc – Low-Voltage CMOS 16-Bit Buffer With 5V-Tolerant Inputs and Outputs

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage CMOS
16-Bit Buffer
With 5V-Tolerant Inputs and Outputs
(3-State, Inverting)
MC74LCX16240A
The MC74LCX16240A is a high performance, inverting 16–bit buffer
operating from a 2.7 to 3.6V supply. The device is nibble controlled. Each
nibble 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
MC74LCX16240A inputs to be safely driven from 5V devices. The
LCX16240A is suitable for memory address driving and all TTL level bus
oriented transceiver applications.
Current drive capability is 24mA at the outputs. The Output Enable
(OEn) inputs, when HIGH, disable the outputs by placing them in a HIGH
Z condition.
• Designed for 2.7 to 3.6V VCC Operation
• 4.9ns Maximum tpd
• 5V Tolerant — Interface Capability With 5V TTL Logic
• Supports Live Insertion and Withdrawal
• IOFF Specification Guarantees High Impedance When VCC = 0V
• JEDEC Standard JESD–36 Compatible
• LVTTL Compatible
• LVCMOS Compatible
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
The MC74LCX16240A contains sixteen inverting buffers with 3–state
5V–tolerant outputs. The device is nibble controlled with each nibble
functioning identically, but independently. The control pins may be tied
together to obtain full 16–bit operation. The 3–state outputs are controlled
by an Output Enable (OEn) input for each nibble. When OEn is LOW, the
outputs are on. When OEn is HIGH, the outputs are in the high
impedance state.
LOW–VOLTAGE
CMOS 16–BIT BUFFER
DT SUFFIX
PLASTIC TSSOP PACKAGE
CASE 1201–01
PIN NAMES
Pins
Function
OEn
D0–D15
O0–O15
Output Enable Inputs
Inputs
Outputs
8/96
© Motorola, Inc. 1996
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