CD74HC109 - 具有设置和复位功能的高速 CMOS 逻辑双路上升沿 J-K 触发器

CD74HC109是TI德州仪器公司的一款J-K触发器产品，CD74HC109是具有设置和复位功能的高速 CMOS 逻辑双路上升沿 J-K 触发器，本站介绍了CD74HC109的封装应用图解、特点和优点、功能等，并给出了与CD74HC109相关的TI元器件型号供参考。

CD74HC109 - 具有设置和复位功能的高速 CMOS 逻辑双路上升沿 J-K 触发器 - J-K触发器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

The ’HC109 and ’HCT109 are dual J-K\ flip-flops with set and reset. The flip-flop changes state with the positive transition of Clock (1CP and 2CP).

The flip-flop is set and reset by active-low S\ and R\, respectively. A low on both the set and reset inputs simultaneously will force both Q and Q\ outputs high. However, both set and reset going high simultaneously results in an unpredictable output condition.

产品特性

Asynchronous Set and Reset
Schmitt Trigger Clock Inputs
Typical fMAX = 54MHz at VCC = 5V, CL = 15pF, A = 25°C
Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . -55°C to 125°C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
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

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