器件名称:
MC74HC158
功能描述:
Quad 2-Input Data Selector/Multiplexer
文件大小:
159.73KB 共6页
简 介:
MOTOROLA SEMICONDUCTOR TECHNICAL DATA Quad 2-Input Data Selector/Multiplexer High–Performance Silicon–Gate CMOS The MC54/74HC158 is identical in pinout to the LS158. The device inputs are compatible with Standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. These devices route 2 nibbles (A or B) to a single port (Y) as determined by the Select input. The data is presented at the outputs in inverted form for the HC158. A high level on the Output Enable input sets all four Y outputs to a high level for the HC158. MC54/74HC158 J SUFFIX CERAMIC PACKAGE CASE 620–10 1 16 16 1 N SUFFIX PLASTIC PACKAGE CASE 648–08 Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS and TTL Operating Voltage Range: 2 to 6V Low Input Current: 1A High Noise Immunity Characteristic of CMOS Devices In Compliance With the JEDEC Standard No. 7A Requirements Chip Complexity: 74 FETs or 18.5 Equivalent Gates LOGIC DIAGRAM A0 Nibble A Inputs A1 A2 A3 2 5 11 14 4 B0 Nibble B Inputs B1 B2 B3 3 6 10 13 7 9 12 Y0 Y1 Y2 Y3 Data Outputs ORDERING INFORMATION MC54HCXXXJ MC74HCXXXN MC74HCXXXD Ceramic Plastic SOIC 16 1 D SUFFIX SOIC PACKAGE CASE 751B–05 FUNCTION TABLE Inputs Output Enable H L L Select X L H Outputs Y0–Y3 H A0–A3 B0–B3 X = Don’t Care A0–A3, B0–B3 = the levels of the respective Data–Word inputs. Pin 16 = VCC Pin 8 = GND Select Output Enable 1 15 Pinout: 16–Lead Plastic Package (Top View) Output VCC Enable 16 15 A3 14 B3 13 Y……
