MC74HC138ADTEL ON Semiconductor, MC74HC138ADTEL Datasheet

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MC74HC138ADTEL

Manufacturer Part Number
MC74HC138ADTEL
Description
1-of-8 Decoder/Demultiplexer
Manufacturer
ON Semiconductor
Datasheet
MC74HC138A
1-of-8 Decoder/
Demultiplexer
High–Performance Silicon–Gate CMOS
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
active–low outputs. This device features three Chip Select inputs, two
active–low and one active–high to facilitate the demultiplexing,
cascading, and chip–selecting functions. The demultiplexing function
is accomplished by using the Address inputs to select the desired
device output; one of the Chip Selects is used as a data input while the
other Chip Selects are held in their active states.
March, 2000 – Rev. 7
The MC74HC138A is identical in pinout to the LS138. The device
The HC138A decodes a three–bit Address to one–of–eight
No. 7A
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 A
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard
Chip Complexity: 100 FETs or 29 Equivalent Gates
Semiconductor Components Industries, LLC, 2000
H = high level (steady state); L = low level (steady state); X = don’t care
CS1CS2 CS3 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
SELECT
X
X
H
H
H
H
H
H
H
H
ADDRESS
INPUTS
L
CHIP–
INPUTS
H
X
X
L
L
L
L
L
L
L
L
H
X
X
Inputs
L
L
L
L
L
L
L
L
CS1
CS2
CS3
A0
A1
A2
X
X
X
H
H
H
H
L
L
L
L
FUNCTION TABLE
H
H
H
H
X
X
X
L
L
L
L
1
2
3
6
4
5
LOGIC DIAGRAM
X
X
X
H
H
H
H
L
L
L
L
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
L
Outputs
H
H
H
H
H
H
H
H
H
H
L
PIN 16 = V CC
PIN 8 = GND
H
H
H
H
H
H
H
H
H
H
L
15
14
13
12
10
11
9
7
H
H
H
H
H
H
H
H
H
H
L
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
L
ACTIVE–LOW
OUTPUTS
1
16
MC74HC138AN
MC74HC138AD
MC74HC138ADR2
MC74HC138ADT
MC74HC138ADTR2
16
16
1
1
Device
ORDERING INFORMATION
1
GND
A
WL = Wafer Lot
YY = Year
WW = Work Week
CS2
CS3
CS1
A0
A1
A2
Y7
PIN ASSIGNMENT
http://onsemi.com
CASE 751B
= Assembly Location
CASE 648
N SUFFIX
D SUFFIX
PDIP–16
1
2
3
4
5
6
7
8
SO–16
CASE 948F
DT SUFFIX
TSSOP–16
TSSOP–16
TSSOP–16
SOIC–16
SOIC–16
Publication Order Number:
Package
PDIP–16
16
15
14
13
12
10
11
9
16
16
1
1
V CC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
MC74HC138A/D
MC74HC138AN
DIAGRAMS
MARKING
AWLYYWW
AWLYWW
HC138A
2500 / Reel
2500 / Reel
16
2000 / Box
1
Shipping
48 / Rail
96 / Rail
ALYW
138A
HC

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MC74HC138ADTEL Summary of contents

Page 1

MC74HC138A 1-of-8 Decoder/ Demultiplexer High–Performance Silicon–Gate CMOS The MC74HC138A is identical in pinout to the LS138. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. The HC138A decodes a three–bit Address ...

Page 2

... SOIC Package: – from 125 _ C TSSOP Package: – 6.1 . from 125 _ C For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book (DL129/D). RECOMMENDED OPERATING CONDITIONS Î Î Î Î ...

Page 3

... Current (per Package) Î Î Î Î Î Î Î Î Î Î Î Î Î NOTE: Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor High–Speed CMOS Data Book (DL129/D). AC ELECTRICAL CHARACTERISTICS Î Î Î Î Î ...

Page 4

VALID VALID INPUT A 50% t PLH OUTPUT Y 50% Figure 90% INPUT 50% 10% CS2, CS3 t PHL 90% 50% OUTPUT Y 10% t THL Figure 3. ADDRESS INPUTS A0, A1, A2 (Pins ...

Page 5

MC74HC138A EXPANDED LOGIC DIAGRAM CS3 4 CS2 6 CS1 http://onsemi.com ...

Page 6

–T – 0.25 (0.010 –A – –B – –T – SEATING PLANE D 16 ...

Page 7

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 G PLANE MC74HC138A PACKAGE DIMENSIONS TSSOP–16 DT SUFFIX CASE ...

Page 8

... CENTRAL/SOUTH AMERICA: Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST) Email: ONlit–spanish@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong & Singapore: 001–800–4422–3781 Email: ONlit– ...

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