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SN75LP1185DBR

Public Made by Adom

by adom

Texas Instruments RS232 ICs, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN75LP1185DBR

Texas Instruments · RS232 ICs · SSOP-20-208mil

SN75LP1185DBR from Texas Instruments, in a SSOP-20-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Positive supply voltage, recommended 9 V to 15 V (12 V nominal) and absolute maximum 15 V; VCC cannot be greater than VDD.
2 RA1 input Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V.
3 RA2 input Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V.
4 RA3 input Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V.
5 DY1 output Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage.
6 DY2 output Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage.
7 RA4 input Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V.
8 DY3 output Driver output, nominally clamped to ±6 V and able to withstand voltages up to ±15 V without damage.
9 RA5 input Receiver input with recommended input voltage of ±25 V and absolute maximum input voltage range of ±30 V.
10 VSS power_in Negative supply voltage, recommended -9 V to -15 V (-12 V nominal) and absolute maximum -15 V.
11 GND power_in Network ground terminal, the reference for all device voltage values.
12 RY5 output Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V.
13 DA3 input Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V.
14 RY4 output Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V.
15 DA2 input Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V.
16 DA1 input Driver logic input with VIH minimum of 2 V and VIL maximum of 0.8 V.
17 RY3 output Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V.
18 RY2 output Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V.
19 RY1 output Receiver logic output with IOH limit of -1 mA, IOL limit of 2 mA, and output voltage range of -0.5 V to 6 V.
20 VCC power_in Logic supply voltage, recommended 4.75 V to 5.25 V (5 V nominal), and must not exceed VDD.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-20-208mil
Category Interface
Pins 20

CAD (KiCad official)

  • Symbol: SN75LP1185DBR
  • Footprint: Package_SO:SSOP-20_5.3x7.2mm_P0.65mm
  • 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
  • 3D model files: sn75lp1185dbr-etched.step / sn75lp1185dbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn75lp1185dbr.step / sn75lp1185dbr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 cd9ab4e418800e26, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF