. HIGH SPEED tPD = 10 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION ICC = 1 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNI...
. 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 V TO 6 V
. PIN AND FUNCTION COMPATIBLE WITH 54/74LS21
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 combined with true
CMOSlow power consumption. The internal circuits is composed 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 Carrier)
O...
