ZHCSQA2 数据表 | 德州仪器 TI.com.cn

ZHCSQA2E December 1982 – March 2022 SN54HC4040 , SN74HC4040

PRODUCTION DATA

请参考 PDF 数据表获取器件具体的封装图。

5.5 Timing Characteristics

over recommended operating free-air temperature range (unless otherwise noted)

			V_CC (V)	T_A = 25°C		SN54HC4040		SN74HC4040		UNIT
			V_CC (V)	MIN	MAX	MIN	MAX	MIN	MAX	UNIT
f_CLK	Clock frequency		2		5.5		3.7		4.3	MHz
			4.5		28		19		22
			6		33		22		25
t_W	Pulse duration	CLK high or low	2	90		135		115		ns
			4.5	18		27		23
			6	15		23		20
		CLR high	2	70		105		90
			4.5	14		21		18
			6	12		18		15
t_su	Setup time, CLR inactive before CLK↓		2	60		90		75		ns
			4.5	12		18		15
			6	10		15		13