米6体育平台手机版

SCHS418 March 2020 CD74HCT21

PRODUCTION DATA

6.5 Electrical Characteristics

over operating free-air temperature range; typical values measured at T_A = 25°C (unless otherwise noted).

PARAMETER		TEST CONDITIONS		V_CC	Operating free-air temperature (T_A)									UNIT
					25°C			–40°C to 85°C			–55°C to 125°C
					MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
V_OH	High-level output voltage	V_I = V_IH	I_OH = –20 µA	4.5 V	4.4			4.4			4.4			V
V_OH	High-level output voltage	V_I = V_IH	I_OH = –4 mA	4.5 V	3.98			3.84			3.7			V
V_OL	Low-level output voltage	V_I = V_IL	I_OL = 20 µA	4.5 V			0.1			0.1			0.1	V
V_OL	Low-level output voltage	V_I = V_IL	I_OL = 4 mA	4.5 V			0.26			0.33			0.4	V
I_I	Input leakage current	V_I = V_CC and GND	I_O = 0	5.5 V			±0.1			±1			±1	µA
I_CC	Supply current	V_I = V_CC or GND	I_O = 0	5.5 V			2			20			40	µA
ΔI_CC⁽¹⁾	Additional Quiescent Device Current Per Input Pin	V_I = V_CC – 2.1		4.5 V to 5.5 V		100	360			450			490	µA
C_i	Input capacitance			5 V			10			10			10	pF

(1) For dual-supply systems theoretical worst case (V_I = 2.4 V, V_CC = 5.5 V) specification is 1.8 mA.