component
MAX232ECDR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMAX232ECDR
Texas Instruments · RS232 ICs · SOIC-16
MAX232ECDR from Texas Instruments, in a SOIC-16. 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 | C1+ | passive | Positive lead of external 1µF capacitor C1 for charge pump energy storage |
| 2 | VS+ | power_out | Positive charge pump output voltage, typical 8.5V for RS-232 supply |
| 3 | C1- | passive | Negative lead of external 1µF capacitor C1 for charge pump energy storage |
| 4 | C2+ | passive | Positive lead of external 1µF capacitor C2 for charge pump energy storage |
| 5 | C2- | passive | Negative lead of external 1µF capacitor C2 for charge pump energy storage |
| 6 | VS- | power_out | Negative charge pump output voltage, typical -8.5V for RS-232 supply |
| 7 | DOUT2 | output | RS-232 output to remote system, minimum ±5V to typical ±7V output levels |
| 8 | RIN2 | input | RS-232 input from remote system, accepts ±3V to ±30V input levels |
| 9 | ROUT2 | output | Logic output to UART, 3.5V high minimum and 0.4V low maximum |
| 10 | DIN2 | input | Logic input from UART, 2V high minimum and 0.8V low maximum thresholds |
| 11 | DIN1 | input | Logic input from UART, 2V high minimum and 0.8V low maximum thresholds |
| 12 | ROUT1 | output | Logic output to UART, 3.5V high minimum and 0.4V low maximum |
| 13 | RIN1 | input | RS-232 input from remote system, accepts ±3V to ±30V input levels |
| 14 | DOUT1 | output | RS-232 output to remote system, minimum ±5V to typical ±7V output levels |
| 15 | GND | power_in | Ground reference at 0V potential |
| 16 | VCC | power_in | Supply voltage input, 4.5V minimum to 5.5V maximum |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
MAX232ECDR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
max232ecdr-etched.step/max232ecdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max232ecdr.step/max232ecdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
69c509d573061180, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).