Dual 4-Input NAND Gate
TECHNICAL DATA
Dual 4-Input NAND Gate
High-Speed Silicon-Gate CMOS
The IN74AC20 is identical in pinout to the LS/ALS20,...
Description
TECHNICAL DATA
Dual 4-Input NAND Gate
High-Speed Silicon-Gate CMOS
The IN74AC20 is identical in pinout to the LS/ALS20, HC/HCT20. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALS outputs. Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1.0 µA; 0.1 µA @ 25°C High Noise Immunity Characteristic of CMOS Devices Outputs Source/Sink 24 mA
IN74AC20
ORDERING INFORMATION IN74AC20N Plastic IN74AC20D SOIC TA = -40° to 85° C for all packages
LOGIC DIAGRAM PIN ASSIGNMENT
NC = NO CONNECTION
PIN 14 =VCC PIN 7 = GND PINS 3,11 = NO CONNECTION A
FUNCTION TABLE
Inputs B X L X X H C X X L X H D X X X L H L X X X H Output Y H H H H L
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h s a t a
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m o c
X = don’t care
1
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IN74AC20
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 Sink/Source 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 -0.5 to VCC +0.5 -0.5 to VCC +0.5 ±20 ±50 ±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...
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