产品介绍

M74HCT574 Octal D-Type Flip-Flop (3-State)

The M74HCT574 is an high speed CMOS OCTAL D-TYPE FLIP FLOP WITH 3-STATE OUTPUTS INVERTING fabricated with sub-micron silicon gate C2MOS technology.

This 8 bit D-TYPE FLIP FLOP is controlled by a clock input (CK) and an output enable input (OE). On the positive transition of the clock, the Q outputs will be set to the logic state that were setup at the D inputs.

While the OE input is at low level, the eight outputs will be in a normal logic state (high or low logic level) and while OE is in high level the outputs will be in a high impedance state.

The output control does not affect the internal operation of flip-flops; that is, the old data can be retained or the new data can be entered even while the outputs are off.

All inputs are equipped with protection circuits against static discharge and transient excess voltage

技术特性

• HIGH SPEED:
  • fMAX = 50MHz (TYP.) at VCC = 4.5V
• LOW POWER DISSIPATION:
  • ICC = 4µA(MAX.) at TA=25 °C
• COMPATIBLE WITH TTL OUTPUTS :
  • VIH = 2V (MIN.) VIL = 0.8V (MAX)
• SYMMETRICAL OUTPUT IMPEDANCE:
  • |IOH| = IOL = 6mA (MIN)
• BALANCED PROPAGATION DELAYS:
  • tPLH tPHL
• PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 574

M74HCT574 订购信息

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