MC74HC42 Schematic ( PDF Datasheet ) - Motorola Semiconductors

Teilenummer	MC74HC42
Beschreibung	1-of-10 Decoder
Hersteller	Motorola Semiconductors
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Gesamt 5 Seiten MOTOROLA SEMICONDUCTOR TECHNICAL DATA 1-of-10 Decoder High–Performance Silicon–Gate CMOS The MC74HC42 is identical in pinout to the LS42. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. The HC42 decodes a BCD Address to one–of–ten active low outputs. For Address inputs with a hexadecimal equivalent greater than 9, all outputs, Y0 – Y9, remain high (inactive). • Output Drive Capability: 10 LSTTL Loads • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2 to 6 V • Low Input Current: 1 µA • High Noise Immunity Characteristic of CMOS Devices • In Compliance with the Requirements Defined by JEDEC Standard No. 7A • Chip Complexity: 104 FETs or 26 Equivalent Gates LOGIC DIAGRAM 15 A0 (LSB) BCD ADDRESS INPUTS 14 A1 13 A2 12 A3 (MSB) PIN 16 = VCC PIN 8 = GND 1 Y0 2 Y1 3 Y2 4 Y3 5 Y4 6 Y5 7 Y6 9 Y7 10 Y8 11 Y9 ACTIVE LOW OUTPUTS MC74HC42 16 1 N SUFFIX PLASTIC PACKAGE CASE 648–08 16 1 D SUFFIX SOIC PACKAGE CASE 751B–05 ORDERING INFORMATION MC74HCXXN MC74HCXXD Plastic SOIC PIN ASSIGNMENT Y0 1 Y1 2 Y2 3 Y3 4 Y4 5 Y5 6 Y6 7 GND 8 16 VCC 15 A0 14 A1 13 A2 12 A3 11 Y9 10 Y8 9 Y7 10/95 © Motorola, Inc. 1995 1 REV 6
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