CBM232AS16

@@ -0,0 +1,58 @@+# CBM232AS16++**Corebai Microelectronics** · RS232 ICs · SOP-16++CBM232AS16 from Corebai Microelectronics, 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 flying capacitor for the +V charge-pump voltage doubler. Connect a 1.0 μF capacitor between C1+ (pin 1) and C1- (pin 3). |+| 2 | V+ | power_out | Positive output of the internal voltage doubler (approximately +2·VCC, ~+10 V). Bypass to GND with a 1.0 μF reservoir capacitor; this rail supplies the RS-232 transmitters' high output level. |+| 3 | C1- | passive | Negative terminal of the flying capacitor for the +V charge-pump voltage doubler. Pairs with C1+ (pin 1) via a 1.0 μF capacitor. |+| 4 | C2+ | passive | Positive terminal of the flying capacitor for the -V charge-pump voltage inverter. Connect a 1.0 μF capacitor between C2+ (pin 4) and C2- (pin 5). |+| 5 | C2- | passive | Negative terminal of the flying capacitor for the -V charge-pump voltage inverter. Pairs with C2+ (pin 4) via a 1.0 μF capacitor. |+| 6 | V- | power_out | Negative output of the internal voltage inverter (approximately -2·VCC, ~-10 V). Bypass to GND with a 1.0 μF reservoir capacitor; this rail supplies the RS-232 transmitters' low output level. |+| 7 | T2OUT | output | Channel-2 RS-232 transmitter output. Drives an RS-232 line at ±5 V min (typ ±5.2 V into a 3 kΩ load); logically inverting versus T2IN. |+| 8 | R2IN | input | Channel-2 RS-232 receiver input. Accepts ±30 V RS-232 signals through an internal ~5 kΩ termination to ground; inverting to R2OUT with typical 0.9 V hysteresis. |+| 9 | R2OUT | output | Channel-2 TTL/CMOS receiver output. Drives VOH ≥ 3.6 V and VOL ≤ 0.3 V at IOL = 3.2 mA; logically inverting versus R2IN. |+| 10 | T2IN | input | Channel-2 TTL/CMOS transmitter input. Accepts 0 V to VCC logic levels (VIH = 2.0 V, VIL = 0.8 V); drives T2OUT inverted onto the RS-232 line. |+| 11 | T1IN | input | Channel-1 TTL/CMOS transmitter input. Accepts 0 V to VCC logic levels (VIH = 2.0 V, VIL = 0.8 V); drives T1OUT inverted onto the RS-232 line. |+| 12 | R1OUT | output | Channel-1 TTL/CMOS receiver output. Drives VOH ≥ 3.6 V and VOL ≤ 0.3 V at IOL = 3.2 mA; logically inverting versus R1IN. |+| 13 | R1IN | input | Channel-1 RS-232 receiver input. Accepts ±30 V RS-232 signals through an internal ~5 kΩ termination to ground; inverting to R1OUT with typical 0.9 V hysteresis. |+| 14 | T1OUT | output | Channel-1 RS-232 transmitter output. Drives an RS-232 line at ±5 V min (typ ±5.2 V into a 3 kΩ load); logically inverting versus T1IN. |+| 15 | GND | power_in | Ground return / common reference for logic, RS-232 signaling, and charge-pump capacitors. |+| 16 | VCC | power_in | Positive supply input, 4.5 V to 5.5 V (nominal 5 V). Bypass to GND with a 1.0 μF capacitor; typical static ICC ≤ 10 mA at 25 °C. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Corebai Microelectronics |+| Package | SOP-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++Same part, different packaging or reel option.++- `CBM232AS16`+- `CBM232ACS16`++## CAD (KiCad official)++- Symbol: `CBM232AS16`+- 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:** [Corebai Microelectronics datasheet](docs/cbm232as16-datasheet.pdf) (9 pp, sha256 `0d944b0e3d04a763`, 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/cbm232as16-datasheet.pdf)

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