SN74HC74DR

TEXAS INSTRUMENTS  SN74HC74DR  触发器, 互补输出, 正沿, D, 15 ns, 60 MHz, 25 mA, SOIC, 14 引脚

description/ordering information

The ’HC74 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. When PREand CLRare 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.

Wide Operating Voltage Range of 2 V to 6 V

Outputs Can Drive Up To 10 LSTTL Loads

Low Power Consumption, 40-µA Max ICC

Typical tpd = 15 ns

±4-mA Output Drive at 5 V

Low Input Current of 1 µA Max