SN74AHC74QPWRG4Q1

TEXAS INSTRUMENTS  SN74AHC74QPWRG4Q1  触发器, 漏极开路, 正沿, D, 11 ns, 170 MHz, 8 mA, TSSOP, 14 引脚

The SN74AHC74Q dual positive-edge-triggered device is a D-type flip-flop.

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 data D input meeting the setup time requirements is 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 D input can be changed without affecting the levels at the outputs.