TC74HCT273AP/AF
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74HCT273AP, TC74HCT273AF
Octal D-Type Flip Flop with Clear
The TC74HCT273A is a high speed CMOS OCTAL D-TYPE
FLIP FLOP fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
Their inputs are compatible with TTL, NMOS, and CMOS
output voltage levels.
Information signals applied to D inputs are transferred to the
Q outputs on the positive going edge of the clock pulse.
When the CLR input is held “L”, the Q outputs are at a low
logic level independent of the other inputs.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
TC74HCT273AP
TC74HCT273AF
Features
•
High speed: fmax = 90 MHz (typ.) at VCC = 5 V
•
Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
•
Compatible with TTL outputs: VIH = 2.0 V (min)
•
Wide interfacing ability: LSTTL, NMOS, CMOS
•
Output drive capability: 10 LSTTL loads
•
•
Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
∼
Balanced propagation delays: tpLH − tpHL
•
Pin and function compatible with 74LS273
VIL = 0.8 V (max)
Weight
DIP20-P-300-2.54A
SOP20-P-300-1.27A
: 1.30 g (typ.)
: 0.22 g (typ.)
Pin Assignment
Start of commercial production
1989-05
1
2014-03-01
