SN75C189ADBR ,Quadruple Low-Power Line Receiverlogic diagram (each receiver)A Y11AResponse2 3THRESHOLD1 CONT 1YControlADJUST42A562 CONT2Y103A893Y3 ..
SN75C189ADR ,Quadruple Low-Power Line Receivermaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage, V ..
SN75C189ADRE4 ,Quadruple Low-Power Line Receiver 14-SOIC 0 to 70maximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage, V ..
SN75C189ADRG4 ,Quadruple Low-Power Line Receiver 14-SOIC 0 to 70maximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN75C189AN ,Quadruple Low-Power Line Receiverlogic diagram (each receiver)A Y11AResponse2 3THRESHOLD1 CONT 1YControlADJUST42A562 CONT2Y103A893Y3 ..
SN75C189ANSR ,Quadruple Low-Power Line Receivermaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SPKC1645 , SCHOTTKY BARRIER SOLAR RECTIFIER VOLTAGE 45 Volts CURRENT 16 Amperes
SPLC063 , The JHB162I is a 16C x 2L Character LCD module. It has a STN panel composed of 80 segments and 16 commons. The LCM can be easily accessed by micro-controller via parallel interface.
SPM0102ND3 , “Mini” Surface Mount Silicon Microphone with standard RF Protection
SPM0103A ,Low-Noise GaAs Amplifier MMICAbsolute Maximum Ratings at Ta = 25°CParameter Symbol Conditions Ratings UnitPower supply voltage V ..
SPM0404HD5H-PB , Mini SiSonic Microphone Specification - Halogen Free
SPM3012T-1R0M , Inductors for Power Circuits Wound Metallic Magnetic Material
SN75C189A-SN75C189AD-SN75C189ADBR-SN75C189ADR-SN75C189ADRE4-SN75C189ADRG4-SN75C189AN-SN75C189ANSR-SN75C189ANSRG4
Quadruple Low-Power Line Receiver
Built-in Input Hysteresis Response and Threshold Control Inputs Push-Pull Outputs Functionally Interchangeable andPin-to-Pin Compatible With
Texas Instruments SN75189/SN75189A and
Motorola MC1489/MC1489A Package Options Include Plastic
Small-Outline (D) and Shrink Small-Outline
(DB) Packages, and Standard Plastic (N)
DIP
descriptionThe 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-m s duration. An external capacitor
can be connected from the control pins to ground to provide further input noise filtering for each receiver.
The SN75C189 and SN75C189A have been designed using low-power techniques in a bipolar technology. In
most applications, these receivers interface to single inputs of peripheral devices such as UARTs, ACEs, or
microprocessors. By using sampling, such peripheral devices usually are insensitive to the transition times of
the input signals. If this is not the case, or for other uses, it is recommended that the SN75C189 and SN75C189A
outputs be buffered by single Schmitt input gates or single gates of the HCMOS, ALS, or 74F logic families.
The SN75C189 and SN75C189A are characterized for operation from 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2 CONT
GND
4 CONT
3 CONT
