74ACT11074 Datasheet | Texas Instruments

DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP WITH CLEAR AND PRESET SCAS498A - DECEMBER 1986 - REVISED APRIL 1996 D Inputs Are TTL-Voltage patible D Center-Pin VCC and GND Configurations to Minimize High-Speed Switching Noise D EPICt (Enhanced-Performance Implanted CMOS) 1-mm Process D 500-m A Typical Latch-Up Immunity at 125°C D Package Options Include Plastic Small-Outline (D) and Shrink Small-Outline (DB) Packages, and Standard Plastic 300-mil DIPs (N) D, DB, OR N PACKAGE (TOP VIEW) 1PRE 1 1Q 2 1Q 3 GND 4 2Q 5 2Q 6 2PRE 7 14 1CLK 13 1D 12 1CLR 11 VCC 10 2CLR 9 2D 8 2CLK description This device contains two independent positive-edge-triggered 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 are transferred to the outputs on the low-to-high transition of the clock (CLK) 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 may be changed without affecting the levels at the outputs. The 74ACT11074 is characterized for operation from - 40°C to 85°C. FUNCTION TABLE INPUTS OUTPUTS PRE CLR CLK D H{ H{ ↑ ↑ Q0 Q0 † This configuration is unstable; that is, it does not persist when either PRE or CLR returns to its inactive (high)...