SN74ACT74 Datasheet | Texas Instruments

description /ordering information - No internal connection The ’ACT74 dual positive-edge-triggered devices are D-type flip-flops. A low level at the preset (PRE) or clear (CLR) input 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 D can be changed without affecting the levels at the outputs. ORDERING INFORMATION PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP - N Tube SN74ACT74N SN74ACT74N SOIC - D Tube Tape and reel SN74ACT74D SN74ACT74DR ACT74 - 40°C to 85°C - NS SSOP - DB Tape and reel Tape and reel SN74ACT74NSR SN74ACT74DBR ACT74 AD74 TSSOP - PW Tube Tape and reel SN74ACT74PW SN74ACT74PWR AD74 CDIP - J Tube SNJ54ACT74J SNJ54ACT74J - 55°C to 125°C CFP -...