TI专营 SN74HC74DR D 类上升沿触发器

【TI专营】SN74HC74DR

【TI进口原装】具有清零和预设功能的双路 D 类上升沿触发器 品牌优势

描述

The SNx4HC74 devices contain two independent D-type 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. WhenPRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.

特性

Wide Operating Voltage Range: 2 V to 6 V

Outputs Can Drive Up To 10 LSTTL Loads

Low Power Consumption, 40-μA Maximum ICC

Typical tpd = 15 ns

±4-mA Output Drive at 5 V

Very Low Input Current of 1 μA

对无铅要求的达标情况/对限制有害物质指令(RoHS)规范的达标情况：

无铅/符合限制有害物质指令(RoHS)规范要求

湿气敏感性等级 （MSL）：1（无限）

方框图 (1)

功能方框图