IN74HC21A
TECHNICAL DATA
Dual 4-Input AND Gate
The IN74HC21A is high-speed Si-gate CMOS device and is pin patible with pullup resistors 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: 2.0 to 6.0 V
- Low Input Current: 1.0 µA
- High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION IN74HC21AN Plastic IN74HC21AD 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
B2 Y2 C2 D2
FUNCTION TABLE
Inputs A L
PIN 14 =VCC PIN 7 = GND
Output С X X L X H D X X X L H Y L L L L H
B X L X X H w w w a t a d . e h s et
4u m o .c
X X X H X = don’t care
..
A2
Y1
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...
