CD54HC273

具有复位功能的高速 CMOS 逻辑八路 D 类触发器

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 inputis 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.

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Common Clock and Asynchronous Master Reset

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Positive Edge Triggering

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Buffered Inputs

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Fanout Over Temperature Range

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Standard Outputs...10 LSTTL Loads

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Bus Driver Outputs...15 LSTTL Loads

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Wide Operating Temperature Range...–55°C to 125°C

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Balanced Propagation Delay and Transition Times

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Significant Power Reduction Compared to LSTTL Logic ICs

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HC Types

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2V to 6V Operation

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High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V

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HCT Types

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4.5V to 5.5V Operation

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Direct LSTTL Input Logic Compatibility, VIL = 0.8V Max, VIH = 2V Min

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CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor