SCAS520 Data sheet

SCAS520I August 1995 – July 2024 SN54ACT74 , SN74ACT74

PRODUCTION DATA

Refer to the PDF data sheet for device specific package drawings

4.4 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER	TEST CONDITIONS	V_CC	T_A = 25°C			SN54ACT74		SN74ACT74		UNIT
PARAMETER	TEST CONDITIONS	V_CC	MIN	TYP	MAX	MIN	MAX	MIN	MAX	UNIT
V_OH	I_OH = –50 µA	4.5 V	4.4	4.49		4.4		4.4		V
	I_OH = –50 µA	5.5 V	5.4	5.49		5.4		5.4
	I_OH = –24 mA	4.5 V	3.86			3.7		3.76
	I_OH = –24 mA	5.5 V	4.86			4.7		4.76
	I_OH = –50 mA†⁽¹⁾	5.5 V				3.86
	I_OH = –75 mA†⁽¹⁾	5.5 V						3.85
V_OL	I_OL = 50 µA	4.5 V		0.001	0.1		0.1		0.1	V
	I_OL = 50 µA	5.5 V		0.001	0.1		0.1		0.1
	I_OL = 24 mA	4.5 V			0.36		0.5		0.44
	I_OL = 24 mA	5.5 V			0.36		0.5		0.44
	I_OL = 50 mA†⁽¹⁾	5.5 V					1.65
	I_OL = 75 mA†⁽¹⁾	5.5 V							1.65
I_I	V_I = V_CC or GND	5.5 V			±0.1		±1		±1	µA
I_CC	V_I = V_CC or GND, I_O = 0	5.5 V			2		40		20	µA
ΔI_CC‡⁽²⁾	One input at 3.4 V, Other inputs at GND or V_CC	5.5 V		0.6			1.6		1.5	mA
C_i	V_I = V_CC or GND	5 V		3						pF

(1) Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.

(2) This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or V_CC.