SEMICONDUCTOR TECHNICAL DATA
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 V
I
LOW–VOLTAGE CMOS
OCTAL BUFFER
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.
DW SUFFIX
PLASTIC SOIC
CASE 751D–04
20
• Designed for 2.7 to 3.6V V
CC
• 5V Tolerant — Interface Capability With 5V TTL Logic
• Supports Live Insertion and Withdrawal
Operation
1
• I
OFF
• LVTTL Compatible
Specification Guarantees High Impedance When V
= 0V
CC
M SUFFIX
PLASTIC SOIC EIAJ
20
CASE 967–01
• LVCMOS Compatible
1
• 24mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (10µA)
Substantially Reduces System Power Requirements
SD SUFFIX
20
• Latchup Performance Exceeds 500mA
PLASTIC SSOP
CASE 940C–03
• ESD Performance: Human Body Model >2000V; Machine Model >200V
1
DT SUFFIX
PLASTIC TSSOP
CASE 948E–02
20
1
Pinout: 20–Lead (Top View)
V
2OE 1O0
2D0
17
1O1
16
2D1
15
1O2
14
2D2
13
1O3
12
2D3
11
CC
20
19
18
PIN NAMES
Pins
Function
nOE
1Dn, 2Dn
1On, 2On
Output Enable Inputs
Data Inputs
3–State Outputs
1
2
3
4
5
6
7
9
8
10
1OE
1D0
2O0
1D1
2O1
1D2
2O2
1D3
2O3 GND
9/95
Motorola, Inc. 1996
REV 3
1
MOTOROLA [ MOTOROLA ]
