2024/6/30 14:10:39
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1 Features
• Buffered inputs
• Common three-state output enable control
• Three-state outputs
• Bus line driving capability
• Typical propagation delay (clock to Q) = 15 ns at VCC = 5 V, CL = 15 pF, TA = 25℃
• Fanout (over temperature range)
– Standard outputs: 10 LSTTL loads
– Bus driver outputs: 15 LSTTL loads
• Wide operating temperature range: –55℃ to 125℃
• Balanced propagation delay and transition times
• Significant power reduction compared to LSTTL Logic ICs
• HC types
– 2-V to 6-V operation
– High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5 V
• HCT types
– 4.5-V to 5.5-V Operation
– Direct LSTTL input logic compatibility, VIL = 0.8 V (max), VIH = 2 V (min)
6
– CMOS input compatibility, II ≤ 1μA at VOL, VOH
2 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 edgetriggered 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.
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20万现货SKU
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科技智能大仓储
4小时快速交货
仅从原厂和代理商进货
每一颗料均可原厂追溯
明码标价节省时间成本
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