54HC21
54HC21 is DUAL 4-INPUT AND GATE manufactured by STMicroelectronics.
DESCRIPTION
The M54/74HC21 is a high speed CMOS DUAL 4INPUT AND GATE fabricated in silicon gate C2MOS technology. It has the same high speed performance of LSTTL bined with true CMOSlow power consumption. The internal circuits is posed of 3 stages including buffered output, which gives high noise immunity and a stable output. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
M54HC21 M74HC21
DUAL 4-INPUT AND GATE
B1R (Plastic Package)
F1R (Ceramic Package)
M 1R (Micro Package)
C1R (Chip...
