SN74AHCT74Q-Q1 Datasheet | Texas Instruments

description The SN74AHCT74Q is a dual positive-edge-triggered 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. ORDERING INFORMATION{ PACKAGE‡ ORDERABLE PART NUMBER TOP-SIDE MARKING - 40°C to 125°C SOIC - D TSSOP - PW Tape and reel Tape and reel SN74AHCT74QDRQ1 SN74AHCT74QPWRQ1 AHCT74Q HB74Q † For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://.ti.. ‡ Package drawings, thermal data, and symbolization are available at http://.ti./packaging. FUNCTION TABLE INPUTS OUTPUTS PRE CLR CLK D H- H-...