米6体育平台手机版

ZHCSPQ4E January 1998 – October 2022 CD54HC540 , CD54HC541 , CD54HCT541 , CD74HC540 , CD74HC541 , CD74HCT540 , CD74HCT541

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机械数据 (封装 | 引脚)

J|20

散热焊盘机械数据 (封装 | 引脚)

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5.5 Switching Characteristics

PARAMETER		TEST CONDITIONS	V_CC (V)	25℃			–40℃ to 85℃		–55℃ to 125℃		UNIT
PARAMETER		TEST CONDITIONS	V_CC (V)	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
HC TYPES
t_PLH, t_PHL	Propagation delay Data to outputs (540)	C_L = 50 pF	2			110		140		165	ns
		C_L = 50 pF	4.5			22		28		33	ns
		C_L = 15 pF	5		9						ns
		C_L = 50 pF	6			19		24		28	ns
t_PLZ, t_PHZ	Data to outputs (541)	C_L = 50 pF	2			115		145		175	ns
		C_L = 50 pF	4.5			23		29		35	ns
		C_L = 15 pF	5		9						ns
		C_L = 50 pF	6			20		25		30	ns
t_PLZ, t_PHZ	Output enable and disable to outputs (540)	C_L = 50 pF	2			160		200		240	ns
		C_L = 50 pF	4.5			32		40		48	ns
		C_L = 15 pF	5		13						ns
		C_L = 50 pF	6			27		34		41	ns
t_PLZ, t_PHZ	Output enable and disable to outputs (541)	C_L = 50 pF	2			160		200		240	ns
		C_L = 50 pF	4.5			32		40		48	ns
		C_L = 15 pF	5		14						ns
		C_L = 50 pF	6			23		29		35	ns
t_THL, t_TLH	Output transition time	C_L = 50 pF	2			60		75		90	ns
			4.5			12		15		18
			6			10		13		15
C_I	Input capacitance	C_L = 50 pF		10		10		10		10	pF
C_O	Three-state output capacitance			20		20		20		20	pF
C_PD	Power dissipation capacitance⁽¹⁾⁽²⁾ (540)	C_L = 15 pF	5		50						pF
C_PD	Power dissipation capacitance⁽¹⁾⁽²⁾ (541)	C_L = 15 pF	5		48						pF
HCT TYPES
t_PHL, t_PLH	Propagation delay Data to outputs (540)	C_L = 50 pF	4.5			24		30		36	ns
t_PHL, t_PLH	Propagation delay Data to outputs (540)	C_L = 15 pF	5		9						ns
t_PHL, t_PLH	Data to outputs (541)	C_L = 50 pF	4.5			28		35		42	ns
t_PHL, t_PLH	Data to outputs (541)	C_L = 15 pF	5		11						ns
t_PLZ, t_PHZ	Output enable and disable to outputs (540, 541)	C_L = 50 pF	4.5			35		44		53	ns
t_PLZ, t_PHZ	Output enable and disable to outputs (540, 541)	C_L = 15 pF	5		14						ns
t_TLH, t_THL	Output transition time	C_L = 50 pF	4.5			12		15		18	ns
C_I	Input capacitance	C_L = 50 pF		10		10		10		10	pF
C_O	Three-state output capacitance			20		20		20		20	pF
C_PD	Power dissipation capacitance⁽¹⁾⁽²⁾ (540, 541)	C_L = 15 pF	5		55						pF

(1) C_PD is used to determine the dynamic power consumption, per channel.

(2) P_D = V_CC²f_i (C_PD + C_L) where f_i = input frequency, C_L = output load capacitance, V_CC = supply voltage.