MC74LCX240 Datasheet, PDF (1/8 Pages) Motorola, Inc – LOW-VOLTAGE CMOS OCTAL BUFFER

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Low-Voltage CMOS
Octal Buffer
With 5V-Tolerant Inputs and Outputs
(3-State, Inverting)
The MC74LCX240 is a high performance, inverting octal buffer
operating from a 2.7 to 3.6V supply. 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 MC74LCX240 inputs to be safely driven from
5V devices. The MC74LCX240 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
(OE) input, when HIGH, disables the outputs by placing them in a HIGH Z
condition.
• Designed for 2.7 to 3.6V VCC Operation
• 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
• Near Zero Static Supply Current in All Three Logic States (10µA)
Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
MC74LCX240
LOW–VOLTAGE CMOS
OCTAL BUFFER
20
1
20
1
20
1
DW SUFFIX
PLASTIC SOIC
CASE 751D–04
M SUFFIX
PLASTIC SOIC EIAJ
CASE 967–01
SD SUFFIX
PLASTIC SSOP
CASE 940C–03
Pinout: 20–Lead (Top View)
VCC 2OE 1O0 2D0 1O1 2D1 1O2 2D2 1O3 2D3
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
1OE 1D0 2O0 1D1 2O1 1D2 2O2 1D3 2O3 GND
20
1
DT SUFFIX
PLASTIC TSSOP
CASE 948E–02
PIN NAMES
Pins
Function
nOE
1Dn, 2Dn
1On, 2On
Output Enable Inputs
Data Inputs
3–State Outputs
9/95
© Motorola, Inc. 1996
1
REV 3