CD54HC4040
TI
德州仪器
电子元器件分类
高速 CMOS 逻辑 12 级二进制计数器
The HC4040 and HCT4040 are 14-stage ripple-carry binary counters. All counter stages are master-slave flip-flops. The state of the stage advances one count on the negative clock transition of each input pulse; a high voltage level on the MR line resets all counters to their zero state. All inputs and outputs are buffered.
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- Fully Static Operation
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- Buffered Inputs
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- Common Reset
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- Negative Edge Pulsing
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- Fanout Over Temperature Range
\- Standard Outputs...10 LSTTL Loads
\- 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
\- 2V to 6V Operation
\- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
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- HCT Types
\- 4.5V to 5.5V Operation
\- Direct LSTTL Input Logic Compatibility, VIL = 0.8V Max, VIH = 2V Min
\- CMOS Input Compatibility, Il 1µA at VOL, VOH