component
MAX3223IDBR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SSOP-20-208mil. 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
markdownMAX3223IDBR
Texas Instruments · RS232 ICs · SSOP-20-208mil
MAX3223IDBR 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 | EN | input | Receiver enable input; low enables receiver outputs to CMOS logic levels, high disables to high impedance. |
| 2 | C1+ | passive | Charge pump capacitor positive terminal pin; connect 0.1 µF external nonpolarized ceramic capacitor. |
| 3 | V+ | power_out | Positive voltage output from dual charge pump; generates approximately +10V from 3-5.5V VCC supply. |
| 4 | C1− | passive | Charge pump capacitor negative terminal pin; connect 0.1 µF external nonpolarized ceramic capacitor. |
| 5 | C2+ | passive | Second stage charge pump capacitor positive terminal pin; connect 0.1 µF external nonpolarized ceramic capacitor. |
| 6 | C2− | passive | Second stage charge pump capacitor negative terminal pin; connect 0.1 µF external nonpolarized ceramic capacitor. |
| 7 | V− | power_out | Negative voltage output from dual charge pump; generates approximately -10V from 3-5.5V VCC supply. |
| 8 | DOUT2 | tri_state | RS-232 driver output for channel 2; outputs ±5.4V nominal (±13.2V maximum) when enabled or high impedance when powered off. |
| 9 | RIN2 | input | RS-232 receiver input for channel 2; rated to accept input signals from -25V to +25V. |
| 10 | ROUT2 | tri_state | CMOS receiver output for channel 2; drives CMOS logic levels when EN is low, otherwise high impedance. |
| 11 | INVALID | output | Auto-powerdown status indicator output; high when valid RS-232 signal detected on any receiver input. |
| 12 | DIN2 | input | CMOS logic driver input for channel 2; controls DOUT2 output state when driver is enabled. |
| 13 | DIN1 | input | CMOS logic driver input for channel 1; controls DOUT1 output state when driver is enabled. |
| 14 | FORCEON | input | Auto-powerdown enable control input; low enables auto-powerdown feature when FORCEOFF is high. |
| 15 | ROUT1 | tri_state | CMOS receiver output for channel 1; drives CMOS logic levels when EN is low, otherwise high impedance. |
| 16 | RIN1 | input | RS-232 receiver input for channel 1; rated to accept input signals from -25V to +25V. |
| 17 | DOUT1 | tri_state | RS-232 driver output for channel 1; outputs ±5.4V nominal (±13.2V maximum) when enabled or high impedance when powered off. |
| 18 | GND | power_in | Ground reference pin for all circuits and signal levels. |
| 19 | VCC | power_in | Main positive power supply input; operating voltage range 3V to 5.5V DC. |
| 20 | FORCEOFF | input | Power control input; low disables drivers and receivers, high enables operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-20-208mil |
| Category | Interface |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
MAX3223IDBR - Footprint:
Package_SO:SSOP-20_5.3x7.2mm_P0.65mm - 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
- 3D model files:
max3223idbr-etched.step/max3223idbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3223idbr.step/max3223idbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
d94792168817349d, retrieved 2026-10-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).