高速CMOS逻辑八路D型触发器，三态反相上升沿触发 High-Speed CMOS Logic Octal D-Type Flip-Flop, Three-State Inverting Positive-Edge Triggered
Description
The ’HC534, ’HCT534, ’HC564, and ’HCT564 are high speed Octal D-Type Flip-Flops manufactured with silicon gate CMOS technology. They possess the low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LSTTL loads. Due to the large output drive capability and the three-state feature, these devices are ideally suited for interfacing with bus lines in a bus organized system. The two types are functionally identical and differ only in their pinout arrangements.
Features
• Buffered Inputs
• Common Three-State Output-Enable Control
• Three-State Outputs
• Bus Line Driving Capability
• Typical Propagation Delay = 13ns at VCC= 5V, CL= 15pF, TA= 25oC Clock to Output
• Fanout Over Temperature Range
\- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Load
\- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Load
• Wide Operating Temperature Range . . . -55oC to 125oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• HC Types
\- 2V to 6V Operation
\- High Noise Immunity: NIL= 30%, NIH= 30% of VCC at VCC= 5V
• HCT Types
\- 4.5V to 5.5V Operation
\- Direct LSTTL Input Logic Compatibility, VIL= 0.8V Max, VIH= 2V Min
\- CMOS Input Compatibility, Il ≤1µA at VOL, VOH
