TC74HC21AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC21AP, TC74HC21AF
Dual 4-Input AND Gate
The TC74HC21A is a high speed CMOS 4-INPUT AND GATE
fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
The internal circuit is composed of 4 stages including buffer an
output, which provide high noise immunity and stable output.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: tpd = 10 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 1 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
• Balanced propagation delays: tpLH ∼− tpHL
• Wide operating voltage range: VCC (opr) = 2 to 6 V
• Pin and function compatible with 74LS21
Pin Assignment
TC74HC21AP
TC74HC21AF
Weight
DIP14-P-300-2.54
SOP14-P-300-1.27A
: 0.96 g (typ.)
: 0.18 g (typ.)
IEC Logic Symbol
Start of commercial production
1987-11
1
2014-03-01
