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ZHCSQI5I August 1990 – October 2022 SN55LBC176 , SN65LBC176 , SN75LBC176

PRODUCTION DATA

6.8 Receiver Electrical Characteristics

over recommended ranges of common-mode input voltage, supply voltage, and operating free-air temperature (unless otherwise noted)

PARAMETER		TEST CONDITIONS			MIN	TYP⁽¹⁾	MAX	UNIT
V_IT+	Positive-going input threshold voltage	V_O = 2.7 V,	I_O = –0.4 mA				0.2	V
V_{IT –}	Negative-going input threshold voltage	V_O = 0.5 V,	I_O = 8 mA		–0.2⁽²⁾			V
V_hys	Hysteresis voltage (V_IT+ – V_IT–) (see Figure 7-4)					50		mV
V_IK	Enable-input clamp voltage	I_I = –18 mA			–1.5			V
V_OH	High level output voltage	V_ID = 200 mV,	I_OH = –400 µA,		2.7			V
V_OH	High level output voltage	See Figure 7-6			2.7			V
V_OL	Low level output voltage	V_ID = −200 mV,	I_OL = 8 mA,				0.45	V
V_OL	Low level output voltage	See Figure 7-6					0.45	V
I_OZ	High-impedance-state output current	V_O = 0.4 V to 2.4 V			–20		20	µA
I_I	Line input current	Other input = 0 V, See ⁽³⁾	V_I = 12 V				1	mA
I_I	Line input current	Other input = 0 V, See ⁽³⁾	V_I = –7 V		–0.8			mA
I_IH	High-level enable-input current	V_IH = 2.7 V			–100			µA
I_IL	Low-level enable-input current	V_IL = 0.4 V			–100			µA
r_I	Input resistance				12			kΩ
I_CC	Supply current	V_I = 0 or V_CC, No load	Receiver enabled and driver disabled				3.9	mA
			Receiver and driver disabled	SN55LBC176, SN65LBC176, SN65LBC176Q			0.25	mA
			Receiver and driver disabled	SN75LBC176			0.2	mA

(1) All typical values are at V_CC = 5 V, T_A = 25°C.

(2) The algebraic convention, in which the less-positive (more-negative) limit is designated minimum, is used in this data sheet.

(3) This applies for both power on and power off. Refer to ANSI Standard RS-485 for exact conditions.