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具有设置和复位端的双路正边沿触发式 D 型触发器
Number of channels (#) 2
Technology Family AC
Supply voltage (Min) (V) 1.5
Supply voltage (Max) (V) 5.5
Input type Standard CMOS
Output type Push-Pull
Clock Frequency (Max) (MHz) 110
IOL (Max) (mA) 24
IOH (Max) (mA) -24
ICC (Max) (uA) 80
Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode
  • AC Types Feature 1.5-V to 5.5-V Operation and Balanced Noise Immunity at 30% of the Supply
  • Speed of Bipolar F, AS, and S, With Significantly Reduced Power Consumption
  • Balanced Propagation Delays
  • ±24-mA Output Drive Current
    • Fanout to 15 F Devices
  • SCR-Latchup-Resistant CMOS Process and Circuit Design
  • Exceeds 2-kV ESD Protection Per MIL-STD-883, Method 3015

The ?AC74 dual positive-edge-triggered devices are D-type 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 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 related directly 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.