TI CD74HC273E

The ’HC273 and ’HCT273 high speed octal D-Type flip-flops with a direct clear input are manufactured with silicon-gate CMOS technology. They possess the low power consumption of standard CMOS integrated circuits. Information at the D input is transferred to the Q outputs on the positive-going edge of the clock pulse. All eight flip-flops are controlled by a common clock (CP) and a common reset (MR). Resetting is accomplished by a low voltage level independent of the clock. All eight Q outputs are reset to a logic 0.

• Common Clock and Asynchronous Master Reset
• Positive Edge Triggering
• Buffered Inputs
• Fanout (Over Temperature Range):
  • Standard Outputs: 10 LSTTL Loads
  • Bus Driver Outputs: 15 LSTTL Loads
• Wide Operating Temperature Range: -55℃ to 125℃
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• HC Types:
  • 2V to 6V Operation
  • High Noise Immunity: Nₗ = 30%, Nₕ = 30% of Vcc at Vcc = 5V
• HCT Types:
  • 4.5V to 5.5V Operation
  • Direct LSTTL Input Logic Compatibility, Vₗ = 0.8V (Max), Vₕ = 2V (Min)
  • CMOS Input Compatibility, I ≤ 1μA at VoL, VoH