CD74HC377数据手册集成电路（IC）的触发器规格书PDF

描述 Description

The ’HC377 and ’HCT377 are octal D-type flip-flops with a buffered clock (CP) common to all eight flip-flops. All the flip-flops are loaded simultaneously on the positive edge of the clock (CP) when the Data Enable (E\\) is Low.

特性 Features

• Buffered Common Clock
• Buffered Inputs
• Typical Propagation Delay at CL = 15pF, VCC = 5V, TA = 25°C
• 14 ns (HC Types)
• 16 ns (HCT Types)

• Fanout (Over Temperature Range)
• Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
• Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . –55°C to 125°C
• 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