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74ACT138

Description
AC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16
Categorysemiconductor    logic   
File Size100KB,10 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet Parametric View All

74ACT138 Overview

AC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16

74ACT138 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals16
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage6 V
Minimum supply/operating voltage2 V
Rated supply voltage5 V
Processing package descriptionPLASTIC, DIP-16
stateACTIVE
CraftsmanshipCMOS
packaging shapeRECTANGULAR
Package SizeIN-LINE
Terminal formTHROUGH-HOLE
Terminal spacing2.54 mm
terminal coatingTIN LEAD
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelINDUSTRIAL
seriesAC
Enter conditionsSTANDARD
Logic IC typeOTHER DECODER/DRIVER
Output polarityINVERTED
propagation delay TPD15 ns
MC74AC138, MC74ACT138
1-of-8
Decoder/Demultiplexer
T h e M C 7 4 A C 1 3 8 / 7 4 A C T 1 3 8 i s a h i g h −s p e e d 1 −o f −8
decoder/demultiplexer. This device is ideally suited for high−speed
bipolar memory chip select address decoding.
The multiple input enables allow parallel expansion to a 1−of−24
decoder using just three MC74AC138/74ACT138 devices or a
1−of−32 decoder using four MC74AC138/74ACT138 devices and one
inverter.
www.onsemi.com
MARKING
DIAGRAMS
16
16
1
SOIC−16
D SUFFIX
CASE 751B
1
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
1
xxx
= AC or ACT
A
= Assembly Location
WL or L = Wafer Lot
Y
= Year
WW or W = Work Week
G or
G
= Pb−Free Package
1
A
0
2
A
1
3
A
2
4
E
1
5
E
2
6
E
3
7
O
7
8
GND
(Note: Microdot may be in either location)
xxx
138
ALYWG
G
xxx138G
AWLYWW
Demultiplexing Capability
Multiple Input Enable for Easy Expansion
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
′ACT138
Has TTL Compatible Inputs
These are Pb−Free Devices
V
CC
16
O
0
15
O
1
14
O
2
13
O
3
12
O
4
11
O
5
10
O
6
9
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
A
0
A
1
A
2
E
1
E
2
E
3
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
Figure 2. Logic Symbol
PIN ASSIGNMENT
PIN
A
0
−A
2
E
1
−E
2
E
3
O
0
−O
7
FUNCTION
Address Inputs
Enable Inputs
Enable Input
Outputs
©
Semiconductor Components Industries, LLC, 2015
1
January, 2015 − Rev. 7
Publication Order Number:
MC74AC138/D
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