IN74HCT21A

TECHNICAL DATA IN74HCT21A Dual 4-Input AND Gate The IN74HCT21A is high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL) . The device provide the Dual 4-input AND function. Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 4.5 to 5.5 V Low Input Current: 1.0 µA High Noise Immunity Characteristic of CMOS Devices ORDERING INFORMATION IN74HCT21AN Plastic IN74HCT21AD SOIC TA = -55° to 125° C for all packages LOGIC DIAGRAM PIN ASSIGNMENT A1 B1 Y1 C1 C1 D1 A1 B1 1 2 3 4 5 6 7 14 13 12 11 10 9 8 V CC D2 C2 B2 A2 Y2 GND B2 Y2 C2 D2 FUNCTION TABLE Inputs A B X L X X H С X X L X H D X X X L H Output Y L L L L H PIN 14 =VCC PIN 7 = GND L X X X H X = don’t care w w w a d . e h s a t et 4u m o .c 1 www.DataSheet4U.com A2 Y1 IN74HCT21A 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 t...