CD54HC574中文资料具有三态输出的高速 CMOS 逻辑八路正边沿触发式 D 型触发器数据手册TI规格书

描述 Description

The ’HC374, ’HCT374, ’HC574, and ’HCT574 are octal D-type flip-flops with 3-state outputs and the capability to drive 15 LSTTL loads. The eight edge-triggered flip-flops enter data into their registers on the LOW to HIGH transition of clock (CP). The output enable (OE) controls the 3-state outputs and is independent of the register operation. When OE is HIGH\\, the outputs are in the high-impedance state. The 374 and 574 are identical in function and differ only in their pinout arrangements.

特性 Features

• Buffered Inputs
• Three-State Outputs
• Typical Propagation Delay (Clock to Q) = 15ns at VCC = 5V, CL = 15pF, TA = 25°C
• Standard Outputs...10 LSTTL Loads
• Wide Operating Temperature Range...–55°C to 125°C
• Significant Power Reduction Compared to LSTTL Logic ICs
• 2V to 6V Operation
• HCT Types
• Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
• CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor