MC54HC157A Motorola, MC54HC157A Datasheet

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MC54HC157A

Manufacturer Part Number
MC54HC157A
Description
Quad 2-Input Data Selectors / Multiplexers
Manufacturer
Motorola
Datasheet
www.DataSheet4U.com
Quad 2-Input Data
Selectors/Multiplexers
High–Performance Silicon–Gate CMOS
inputs are compatible with standard CMOS outputs; with pullup resistors,
they are compatible with LSTTL outputs.
the Select input. The data is presented at the outputs in noninverted form. A
high level on the Output Enable input sets all four Y outputs to a low level.
2/97
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1997
The MC54/74HC157A is identical in pinout to the LS157. The device
This device routes 2 nibbles (A or B) to a single port (Y) as determined by
The HC157A is similar in function to the HC257 which has 3–state outputs.
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
No. 7A
Chip Complexity: 82 FETs or 20.5 Equivalent Gates
A INPUTS
B INPUTS
NIBBLE
NIBBLE
OUTPUT
SELECT
ENABLE
A0
A1
A2
A3
B0
B1
B2
B3
11
14
10
13
2
5
3
6
LOGIC DIAGRAM
15
1
PIN 16 = V CC
PIN 8 = GND
1
12
4
7
9
Y0
Y1
Y2
Y3
DATA
OUTPUTS
REV 7
MC54/74HC157A
16
16
16
16
1
1
SELECT
MC54HCXXXAJ
MC74HCXXXAN
MC74HCXXXAD
MC74HCXXXADT
X = don’t care
A0 – A3, B0 – B3 = the levels
of the respective Data–Word
Inputs.
ORDERING INFORMATION
1
1
Output
Enable
GND
A0
B0
Y0
A1
B1
Y1
PIN ASSIGNMENT
FUNCTION TABLE
H
L
L
Inputs
1
2
3
4
5
6
7
8
Select
H
X
L
CERAMIC PACKAGE
PLASTIC PACKAGE
TSSOP PACKAGE
SOIC PACKAGE
CASE 751B–05
CASE 948F–01
CASE 620–10
CASE 648–08
16
15
14
13
12
10
11
DT SUFFIX
9
N SUFFIX
D SUFFIX
Outputs
J SUFFIX
Y0 – Y3
A0 – A3
B0 – B3
Ceramic
Plastic
SOIC
TSSOP
V CC
OUTPUT
ENABLE
A3
B3
Y3
A2
B2
Y2
L

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MC54HC157A Summary of contents

Page 1

... A1 NIBBLE 11 A INPUTS NIBBLE INPUTS SELECT 15 OUTPUT ENABLE 2/97 Motorola, Inc. 1997 DATA 9 Y2 OUTPUTS 12 Y3 PIN PIN 8 = GND 1 MC54/74HC157A J SUFFIX CERAMIC PACKAGE 16 CASE 620– SUFFIX PLASTIC PACKAGE 16 CASE 648–08 ...

Page 2

... C from 65 TSSOP Package: – 6.1 mW/ _ For high frequency or heavy load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D). RECOMMENDED OPERATING CONDITIONS Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 3

... Maximum Input Capacitance NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the Motorola High– Î Î Î Î ...

Page 4

... TLH Figure 1. HC157A OUTPUT ENABLE OUTPUT Y MOTOROLA PIN DESCRIPTIONS these outputs when the Output Enable input low level. The data present on these pins is in its noninverted form. For the Output Enable input at a high level, the outputs are at a low level. ...

Page 5

... NIBBLE OUTPUTS OUTPUT ENABLE SELECT High–Speed CMOS Logic Data DL129 — Rev 6 EXPANDED LOGIC DIAGRAM MC54/74HC157A DATA OUTPUTS MOTOROLA ...

Page 6

... 0.25 (0.010) –A – –T – SEATING PLANE 0.25 (0.010 MOTOROLA OUTLINE DIMENSIONS J SUFFIX CERAMIC PACKAGE CASE 620–10 ISSUE V –B – 0.25 (0.010 SUFFIX PLASTIC PACKAGE CASE 648–08 ...

Page 7

... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “ ...

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