SN74F109 - 具有清零和预设功能的双路 J-K 上升沿触发器

SN74F109是TI德州仪器公司的一款J-K触发器产品，SN74F109是具有清零和预设功能的双路 J-K 上升沿触发器，本站介绍了SN74F109的封装应用图解、特点和优点、功能等，并给出了与SN74F109相关的TI元器件型号供参考。

SN74F109 - 具有清零和预设功能的双路 J-K 上升沿触发器 - J-K触发器 - 触发器/锁存器/寄存器 - 德州仪器

产品描述

These devices contain two independent J-K\ positive-edge-triggered flip-flops. A low level at the preset (PRE\) or clear (CLR\) inputs sets or resets the outputs regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the J and K\ input meeting the setup-time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the J and K\ inputs may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle flip-flops by grounding K\ and trying J high. They also can perform as D-type flip-flops if J and K\ are tied together.

The SN54F109 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F109 is characterized for operation from 0°C to 70°C.

产品特性

Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs

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