SN74HC4040N .

产品概述

The SN74HC4040N is a 12-bit Asynchronous Binary Counter with the outputs of all stages available externally. A high level at the clear (CLR) input asynchronously clears the counter and resets all outputs low. The count is advanced on a high-to-low transition at the clock input. Applications include time-delay circuits, counter controls and frequency-dividing circuits.

  • Outputs can drive up to 10 LSTTL loads
  • 80µA Maximum low power consumption
  • 12ns Typical tpd
  • ±4mA Output drive at 5V
  • 1µA Maximum low input current

应用

时钟与计时

产品信息


:
74HC4040

:
二进制、异步

:
53MHz

:
12

:
DIP

:
16引脚

:
2V

:
6V

:
74HC

:
744040

:
-40°C

:
85°C

:
SN54HC4040, SN74HC4040

:
-

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