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ZHCSWT1I August 1995 – July 2024 SN54ACT74 , SN74ACT74

PRODUCTION DATA

请参考 PDF 数据表获取器件具体的封装图。

4.5 Timing Requirements

over recommended operating free-air temperature range (unless otherwise noted) (see Load Circuit and Voltage Waveforms)

			T_A = 25°C		SN54ACT74		SN74ACT74		UNIT
			MIN	MAX	MIN	MAX	MIN	MAX	UNIT
f_clock	Clock frequency			145		85		125	MHz
t_w	Pulse duration	PRE or CLR low	5		7		6		ns
t_w	Pulse duration	CLK	5		7		6		ns
t_su	Setup time, data before CLK↑	Data	3		4		3.5		ns
t_su	Setup time, data before CLK↑	Data	0		0.5		0		ns
t_h	Hold time, data after CLK↑	PRE or CLR inactive	1		1		1		ns