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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Quad 2-Input Data Selectors/Multiplexers High–Performance S...
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Quad 2-Input Data Selectors/Multiplexers High–Performance Silicon–Gate
CMOS
The MC54/74HC157A is identical in pinout to the LS157. The device inputs are compatible with standard
CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device routes 2 nibbles (A or B) to a single port (Y) as determined by 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. 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 µA 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
MC54/74HC157A
16 1
J SUFFIX CERAMIC PACKAGE CASE 620–10
16 1
N SUFFIX PLASTIC PACKAGE CASE 648–08 D SUFFIX SOIC PACKAGE CASE 751B–05 DT SUFFIX TSSOP PACKAGE CASE 948F–01
16 1
16 1
ORDERING INFORMATION MC54HCXXXAJ MC74HCXXXAN MC74HCXXXAD MC74HCXXXADT Ceramic Plastic SOIC TSSOP
LOGIC DIAGRAM
2 5 11 14 4 3 6 10 13 7 9 12 Y0 Y1 Y2 Y3 DATA OUTPUTS
A0 NIBBLE A INPUTS A1 A2 A3 B0 NIBBLE B INPUTS B1 B2 B3
PIN ASSIGNMENT
SELECT A0 B0 Y0 A1 B1 Y1 GND 1 15 PIN 16 = VCC PIN 8 = GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC OUTPUT ENAB...