Specification	SN75C189AD

Mounting Type	Surface Mount
Number of Drivers/Receivers [custom]	0
Number of Drivers/Receivers [custom]	4
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	14-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Protocol	RS232
Receiver Hysteresis	970 mV
Type	Receiver
Voltage - Supply [Max]	6 V
Voltage - Supply [Min]	4.5 V

SN75C189A Series

Quadruple Low-Power Line Receiver

Part	Mounting Type	Number of Drivers/Receivers [custom]	Operating Temperature [Max]	Receiver Hysteresis	Type	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Supply [Max]	Voltage - Supply [Min]	Protocol	Supplier Device Package	Package / Case	Package / Case
Texas Instruments SN75C189N	Through Hole	4	70 °C	330 mV	Receiver	14-DIP	7.62 mm	0.3 "	6 V	4.5 V	RS232
Texas Instruments SN75C189ADR	Surface Mount	4	70 °C	970 mV	Receiver	14-SOIC	3.9 mm	0.154 in	6 V	4.5 V	RS232
Texas Instruments SN75C189DR	Surface Mount	4	70 °C	330 mV	Receiver	14-SOIC	3.9 mm	0.154 in	6 V	4.5 V	RS232
Texas Instruments SN75C189ANSR	Surface Mount	4	70 °C	970 mV	Receiver	14-SOIC	5.3 mm	0.209 "	6 V	4.5 V	RS232	14-SO
Texas Instruments SN75C189NSR	Surface Mount	4	70 °C	330 mV	Receiver	14-SOIC	5.3 mm	0.209 "	6 V	4.5 V	RS232	14-SO
Texas Instruments SN75C189AN	Through Hole	4	70 °C	970 mV	Receiver	14-DIP	7.62 mm	0.3 "	6 V	4.5 V	RS232
Texas Instruments SN75C189ANG4	Through Hole	4	70 °C	970 mV	Receiver	14-DIP	7.62 mm	0.3 "	6 V	4.5 V	RS232
Texas Instruments SN75C189ADBR	Surface Mount	4	70 °C	970 mV	Receiver	14-SSOP			6 V	4.5 V	RS232	14-SSOP	5.3 mm	0.209 "
Texas Instruments SN75C189ADBRE4	Surface Mount	4	70 °C	970 mV	Receiver	14-SSOP			6 V	4.5 V	RS232	14-SSOP	5.3 mm	0.209 "
Texas Instruments SN75C189AD	Surface Mount	4	70 °C	970 mV	Receiver	14-SOIC	3.9 mm	0.154 in	6 V	4.5 V	RS232

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.03
		10	$ 0.92
		50	$ 0.87
		100	$ 0.72
		250	$ 0.67
		500	$ 0.59
Texas Instruments	TUBE	1	$ 0.76
		100	$ 0.58
		250	$ 0.43
		1000	$ 0.31

Description

General part information

SN75C189A Series

The SN75C189 and SN75C189A are low-power, bipolar, quadruple line receivers that are used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). These devices have been designed to conform to TIA/EIA-232-F.

The SN75C189 has a 0.33-V typical hysteresis, compared with 0.97 V for the SN75C189A. Each receiver has provision for adjustment of the overall input threshold levels. This is achieved by choosing external series resistors and voltages to provide bias levels for the response-control pins. The output is in the high logic state if the input is open circuit or shorted to ground.

These devices have an on-chip filter that rejects input pulses of less than 1-us duration. An external capacitor can be connected from the control pins to ground to provide further input noise filtering for each receiver.

Documents

Technical documentation and resources

Quadruple Low-Power Line Receivers datasheet (Rev. G)

Data sheet