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Contents

README

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TRS213IDBR

Texas Instruments · RS232 ICs · SSOP-28-208mil

TRS213IDBR from Texas Instruments, in a SSOP-28-208mil. 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 DOUT3 output RS-232 driver output, ±5-9 V at 3 kΩ load, 120 kbit/s maximum data rate
2 DOUT1 output RS-232 driver output, ±5-9 V at 3 kΩ load, 120 kbit/s maximum data rate
3 DOUT2 output RS-232 driver output, ±5-9 V at 3 kΩ load, 120 kbit/s maximum data rate
4 RIN2 input RS-232 receiver input, ±25 V range, 0.8-2.4 V switching threshold
5 ROUT2 output Receiver output, VOH = VCC-0.4 V and VOL = 0.4 V
6 DIN2 input Driver input, 0-5.5 V with VIH ≥2 V and VIL ≤0.8 V
7 DIN1 input Driver input, 0-5.5 V with VIH ≥2 V and VIL ≤0.8 V
8 ROUT1 output Receiver output, VOH = VCC-0.4 V and VOL = 0.4 V
9 RIN1 input RS-232 receiver input, ±25 V range, 0.8-2.4 V switching threshold
10 GND power_in Ground reference
11 VCC power_in Supply voltage, 4.5-5.5 V operating range, 14-20 mA typical current
12 C1+ passive Charge-pump capacitor positive terminal, connect 0.1 µF external capacitor to V+
13 V+ power_out Positive charge-pump output voltage for RS-232 driver supply
14 C1− passive Charge-pump capacitor negative terminal, connect 0.1 µF external capacitor to GND
15 C2+ passive Charge-pump capacitor positive terminal, connect 0.1 µF external capacitor to V+
16 C2− passive Charge-pump capacitor negative terminal, connect 0.1 µF external capacitor to GND
17 V− power_out Negative charge-pump output voltage for RS-232 driver supply
18 RIN5 input RS-232 receiver input, ±25 V range, 0.8-2.4 V switching threshold
19 ROUT5 output Receiver output, VOH = VCC-0.4 V and VOL = 0.4 V
20 DIN3 input Driver input, 0-5.5 V with VIH ≥2 V and VIL ≤0.8 V
21 DIN4 input Driver input, 0-5.5 V with VIH ≥2 V and VIL ≤0.8 V
22 ROUT4 output Receiver output, VOH = VCC-0.4 V and VOL = 0.4 V
23 RIN4 input RS-232 receiver input, ±25 V range, 0.8-2.4 V switching threshold
24 EN input Active-high enable control, VIH ≥2.4 V enables outputs, VIL ≤0.8 V disables
25 SHDN input Active-low shutdown control, VIL ≤0.8 V reduces ICC to 15-50 µA
26 ROUT3 output Receiver output, VOH = VCC-0.4 V and VOL = 0.4 V
27 RIN3 input RS-232 receiver input, ±25 V range, 0.8-2.4 V switching threshold
28 DOUT4 output RS-232 driver output, ±5-9 V at 3 kΩ load, 120 kbit/s maximum data rate

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-28-208mil
Category Interface
Pins 28

CAD (KiCad official)

  • Symbol: TRS213IDBR
  • Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
  • 3D model: SSOP-28-208mil (KiCad packages3D, STEP)
  • 3D model files: trs213idbr-etched.step / trs213idbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); trs213idbr.step / trs213idbr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 6404e251278d0f01, retrieved 2026-09-27, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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