米6体育平台手机版

ZHCSPU5G December 1982 – October 2022 SN54HCT74 , SN74HCT74

PRODUCTION DATA

请参考 PDF 数据表获取器件具体的封装图。

5.6 Switching Characteristics

over recommended operating free-air temperature range, C_L = 50 pF (unless otherwise noted) (see Parameter Measurement Information)

PARAMETER	FROM (INPUT)	TO (OUTPUT)	V_CC	T_A = 25°C			SN54HCT74⁽¹⁾		SN74HCT74		UNIT
PARAMETER	FROM (INPUT)	TO (OUTPUT)	V_CC	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
f_max			4.5 V	27	40		18		22		MHz
f_max			5.5 V	30	46		20		24		MHz
t_pd	PRE or CLR	Q or Q	4.5 V		21	35		53		44	ns
	PRE or CLR	Q or Q	5.5 V		17	31		48		40
	CLK	Q or Q	4.5 V		20	28		42		35
	CLK	Q or Q	5.5 V		18	25		38		31
t_t		Q or Q	4.5 V		8	15		22		19	ns
t_t		Q or Q	5.5 V		7	14		20		17	ns

(1) SN54HCT74 is in product preview.