米6体育平台手机版

ZHCSQ34F December 1982 – February 2022 SN54HC253 , SN74HC253

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			SN54HC253		SN74HC253		UNIT
PARAMETER	FROM (INPUT)	TO (OUTPUT)	V_CC (V)	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
t_pd	A or B	Any Y	2		62	150		225		190	ns
			4.5		19	30		45		38
			6		16	26		38		32
	Data (Any C)	Y	2		54	126		210		175
			4.5		16	28		42		35
			6		13	23		36		30
t_en	OE	Y	2		28	100		150		125	ns
			4.5		11	20		30		25
			6		9	17		26		21
t_dis	OE	Y	2		21	135		203		170	ns
			4.5		14	30		45		38
			6		12	35		38		31
t_t		Y	2		28	60		90		75	ns
			4.5		8	12		18		15
			6		6	10		15		13