SN74LS109A - 具有清零和预设功能的双路 J-K 上升沿触发器

SN74LS109A是TI德州仪器公司的一款J-K触发器产品，SN74LS109A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SN74LS109A的封装应用图解、特点和优点、功能等，并给出了与SN74LS109A相关的TI元器件型号供参考。

SN74LS109A - 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 or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the J and K\ inputs 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 tying J high. They also can perform as D-type flip-flops if J and K\ are tied together.

The SN54109 and SN54LS109A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74109 and SN74LS109A are characterized for operation from 0°C to 70°C.

产品特性

Package Options Include Plastic "Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
Dependable Texas Instruments Quality and Reliability

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