74AC138ALYW ONSEMI [ON Semiconductor], 74AC138ALYW Datasheet

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74AC138ALYW

Manufacturer Part Number
74AC138ALYW
Description
1−of−8 Decoder/Demultiplexer
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.74AC138ALYW.pdf (11 pages)
MC74AC138, MC74ACT138
1−of−8
Decoder/Demultiplexer
decoder/demultiplexer. This device is ideally suited for high−speed
bipolar memory chip select address decoding.
decoder using just three MC74AC138/74ACT138 devices or a
1−of−32 decoder using four MC74AC138/74ACT138 devices and one
inverter.
•
•
•
•
•
w
© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 6
PIN ASSIGNMENT
PIN
A
E
E
O
Figure 1. Pinout: 16−Lead Packages Conductors
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
The multiple input enables allow parallel expansion to a 1−of−24
These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
Demultiplexing Capability
Multiple Input Enable for Easy Expansion
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
′ACT138 Has TTL Compatible Inputs
0
1
3
0
−A
−E
−O
V
16
A
1
CC
2
2
7
0
O
15
A
2
0
1
Figure 2. Logic Symbol
O
A
0
0
O
FUNCTION
Address Inputs
Enable Inputs
Enable Input
Outputs
14
A
3
O
A
1
2
1
1
A
O
2
2
O
13
E
4
(Top View)
2
O
1
3
O
O
12
E
4
5
2
3
E
O
1
5
O
E
O
11
E
6
2
6
4
3
O
E
3
7
O
10
O
7
5
7
GND
O
9
8
6
1
MC74AC138N
MC74ACT138N
MC74AC138D
MC74ACT138D
MC74AC138DR2
MC74ACT138DR2
MC74AC138DT
MC74ACT138DT
MC74AC138DTR2
MC74ACT138DTR2 TSSOP−16
MC74AC138M
MC74ACT138M
MC74AC138MEL
MC74ACT138MEL
See general marking information in the device marking
section on page 6 of this data sheet.
16
DEVICE MARKING INFORMATION
Device
ORDERING INFORMATION
1
16
16
16
http://onsemi.com
1
1
1
TSSOP−16
TSSOP−16
TSSOP−16
SOIC−16
SOIC−16
Package
SOIC−16
SOIC−16
EIAJ−16
EIAJ−16
EIAJ−16
EIAJ−16
PDIP−16
PDIP−16
Publication Order Number:
CASE 751B
CASE 948F
DT SUFFIX
TSSOP−16
CASE 648
M SUFFIX
CASE 966
N SUFFIX
D SUFFIX
EIAJ−16
DIP−16
SO−16
2500 Tape & Reel
2500 Tape & Reel
2500 Tape & Reel
2500 Tape & Reel
2000 Tape & Reel
2000 Tape & Reel
MC74AC138/D
25 Units/Rail
25 Units/Rail
48 Units/Rail
48 Units/Rail
96 Units/Rail
96 Units/Rail
50 Units/Rail
50 Units/Rail
Shipping

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74AC138ALYW Summary of contents

Page 1

MC74AC138, MC74ACT138 1−of−8 Decoder/Demultiplexer h− −o f −8 ...

Page 2

FUNCTIONAL DESCRIPTION The MC74AC138/74ACT138 decoder/demultiplexer accepts three binary weighted inputs ( and, when enabled, provides eight mutually exclusive active−LOW outputs MC74AC138/74ACT138 features three Enable inputs, two active−LOW ( and ...

Page 3

123 MAXIMUM ...

Page 4

DC CHARACTERISTICS Symbol Parameter V Minimum High Level IH Input Voltage V Maximum Low Level IL Input Voltage V Minimum High Level OH Output Voltage V Maximum Low Level OL Output Voltage I Maximum Input IN Leakage Current I †Minimum ...

Page 5

AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) Symbol Parameter Propagation Delay t PLH Propagation Delay t PHL Propagation Delay ...

Page 6

AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) Symbol Parameter Propagation Delay t PLH Propagation Delay t PHL Propagation Delay ...

Page 7

0.25 (0.010) M −A− −T− SEATING PLANE 0.25 (0.010 PACKAGE DIMENSIONS PDIP−16 N ...

Page 8

K 16X REF 0.10 (0.004) 0.15 (0.006 L PIN 1 IDENT. 1 0.15 (0.006 −V− C 0.10 (0.004) −T− SEATING D PLANE ...

Page 9

Notes http://onsemi.com 9 ...

Page 10

Notes http://onsemi.com 10 ...

Page 11

Notes ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products ...

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