74HC157A

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 LOGIC DIAGRAM NIBBLE A INPUTS NIBBLE B INPUTS A0 2 A1 5 A2 11 A3 14 B0 3 B1 6 B2 10 B3 13 4 Y0 7 Y1 9 Y2 12 Y3 DATA OUTPUTS SELECT OUTPUT ENABLE 1 15 PIN 16 = VCC PIN 8 = GND MC54/74HC157A 16 1 J SUFFIX CERAMIC PACKAGE CASE 620–10 16 1 16 1 N SUFFIX PLASTIC PACKAGE CASE 648–08 D SUFFIX SOIC PACKAGE CASE 751B–05 16 1 DT SUFFIX TSSOP PACKAGE CASE 948F–01 ORDERING INFORMATION MC54HCXXXAJ MC74HCXXXAN MC74HCXXXAD MC74HCXXXADT Ceramic Plastic SOIC TSSOP PIN ASSIGNMENT SELECT A0 B0 Y0 A1 B1 Y1 GND 1 2 3 4 5 6 7 8 16 VCC 15 OUTPUT ENABLE 14...