米6体育平台手机版

ZHCSQ25E December 1982 – February 2022 SN54HC157 , SN74HC157

PRODUCTION DATA

请参考 PDF 数据表获取器件具体的封装图。

5.5 Switching Characteristics

over recommended operating free-air temperature range, C_L = 50 pF (unless otherwise noted) (See Figure 6)

PARAMETER		FROM (INPUT)	TO (OUTPUT)	V_CC (V)	T_A = 25°C			SN54HC157		SN74HC157		UNIT
PARAMETER		FROM (INPUT)	TO (OUTPUT)	V_CC (V)	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
t_pd	Propagation delay	A or B	Y	2		63	125		190		160	ns
				4.5		13	25		38		32
				6		11	21		32		27
		A/B	Y	2		67	125		190		160	ns
				4.5		18	25		38		31
				6		14	21		32		27
		G	Y	2		59	115		170		145	ns
				4.5		16	23		34		29
				6		13	20		29		25
t_t	Transition time		Y	2		28	60		90		75	ns
				4.5		8	12		18		15
				6		6	10		15		13

over recommended operating free-air temperature range, C_L = 150 pF (unless otherwise noted) (See Figure 6)

PARAMETER		FROM (INPUT)	TO (OUTPUT)	V_CC (V)	T_A = 25°C			SN54HC157		SN74HC157		UNIT
PARAMETER		FROM (INPUT)	TO (OUTPUT)	V_CC (V)	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
t_pd	Propagation delay	A or B	Y	2		81	190		290		235	ns
				4.5		23	38		58		47
				6		18	33		49		41
		A/B	Y	2		81	210		320		260	ns
				4.5		23	42		64		52
				6		18	36		54		45
		G	Y	2		91	190		290		235	ns
				4.5		24	38		58		47
				6		18	33		49		41
t_t	Transition time		Y	2		45	210		315		265	ns
				4.5		17	42		63		53
				6		13	36		53		45