GM3232ESA

@@ -0,0 +1,58 @@+# GM3232ESA++**Unknown** · RS232 ICs · SOP-16++GM3232ESA from Unknown, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | C1+ | passive | Positive terminal of the voltage-doubler charge-pump flying capacitor C1. Connect an external ceramic capacitor (0.1 µF at 3.3V, 0.047 µF at 5V) between C1+ (pin 1) and C1- (pin 3). |+| 2 | V+ | power_out | Positive voltage output generated by the internal charge pump (approx. +2×VCC, ≤ +7V absolute max). Bypass to GND with an external capacitor (0.1 µF at 3.3V, 0.33 µF at 5V). |+| 3 | C1- | passive | Negative terminal of the voltage-doubler charge-pump flying capacitor C1. Pairs with C1+ (pin 1). |+| 4 | C2+ | passive | Positive terminal of the inverting charge-pump flying capacitor C2. Connect an external ceramic capacitor (0.1 µF at 3.3V, 0.33 µF at 5V) between C2+ (pin 4) and C2- (pin 5). |+| 5 | C2- | passive | Negative terminal of the inverting charge-pump flying capacitor C2. Pairs with C2+ (pin 4). |+| 6 | V- | power_out | Negative voltage output generated by the internal inverting charge pump (approx. -2×VCC, down to -7V absolute max). Bypass to GND with an external capacitor (0.1 µF at 3.3V, 0.33 µF at 5V). |+| 7 | DOUT2 | output | RS-232 driver output for channel 2. Inverted level-shifted version of DIN2 (pin 10); swings to ±V approximately, meets TIA/EIA-232-F, short-circuit protected to GND. ±15kV IEC 61000-4-2 ESD-protected. |+| 8 | RIN2 | input | RS-232 receiver input for channel 2. Accepts ±25V line levels with 5 kΩ typical input impedance and internal pull-down (open input reads as high on ROUT). ±15kV IEC 61000-4-2 ESD-protected. |+| 9 | ROUT2 | output | TTL/CMOS receiver output for channel 2. Inverted logic level of RIN2 (pin 8); VOH ≈ VCC-0.1 V at -1 mA, VOL ≈ 0.4 V at 1.6 mA. Defaults high when RIN2 is open. |+| 10 | DIN2 | input | TTL/CMOS driver input for channel 2. VIH ≥ 2.0V (VCC=3.3V) or ≥ 2.4V (VCC=5V); VIL ≤ 0.8V. Drives DOUT2 (pin 7) with inverted RS-232 level. |+| 11 | DIN1 | input | TTL/CMOS driver input for channel 1. VIH ≥ 2.0V (VCC=3.3V) or ≥ 2.4V (VCC=5V); VIL ≤ 0.8V. Drives DOUT1 (pin 14) with inverted RS-232 level. |+| 12 | ROUT1 | output | TTL/CMOS receiver output for channel 1. Inverted logic level of RIN1 (pin 13); VOH ≈ VCC-0.1 V at -1 mA, VOL ≈ 0.4 V at 1.6 mA. Defaults high when RIN1 is open. |+| 13 | RIN1 | input | RS-232 receiver input for channel 1. Accepts ±25V line levels with 5 kΩ typical input impedance and internal pull-down (open input reads as high on ROUT). ±15kV IEC 61000-4-2 ESD-protected. |+| 14 | DOUT1 | output | RS-232 driver output for channel 1. Inverted level-shifted version of DIN1 (pin 11); swings to ±V approximately, meets TIA/EIA-232-F, short-circuit protected to GND. ±15kV IEC 61000-4-2 ESD-protected. |+| 15 | GND | power_in | Device ground reference for both logic and RS-232 sides. |+| 16 | VCC | power_in | Single supply input, +3.0V to +5.5V (absolute max +6V). Bypass to GND with a 1 µF ceramic capacitor placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Unknown |+| Package | SOP-16 |+| Category | Comm/UART |+| Pins | 16 |++## Ordering variants++- `GM3232ESAESA`+- `GM3232ESAETA`+- `GM3232ESAEBA`+- `GM3232ESAENA`++## CAD (KiCad official)++- Symbol: `GM3232ESA`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Unknown datasheet](docs/gm3232esa-datasheet.pdf) (13 pp, sha256 `d683feb35f456db6`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/gm3232esa-datasheet.pdf)

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