Dual 4-Input NAND Gate
SL74HC20
Dual 4-Input NAND Gate
High-Performance Silicon-Gate CMOS
The SL74HC20 is identical in pinout to the LS/ALS20....
Description
SL74HC20
Dual 4-Input NAND Gate
High-Performance Silicon-Gate CMOS
The SL74HC20 is identical in pinout to the LS/ALS20. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. 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
ORDERING INFORMATION SL74HC20N Plastic SL74HC20D SOIC TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
NC = NO CONNECTION PIN 14 =VCC PIN 7 = GND PINS 3,11 = NO CONNECTION
FUNCTION TABLE
Inputs A L X X X H B X L X X H C X X L X H D X X X L H Output Y H H H H L
X = don’t care
SLS
System Logic Semiconductor
SL74HC20
MAXIMUM RATINGS *
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)
Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 to VCC +0.5 ±20 ±25 ±50 750 500 -65 to +150 260
Unit V V V mA mA mA mW °C °C
Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic...
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