CBM232AS16

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  "slug": "cbm232as16",
  "title": "CBM232AS16",
  "brief": "Corebai Microelectronics RS232 ICs, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "cbm232as16"
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  "component": {
    "mpn": "CBM232AS16",
    "manufacturer": "Corebai Microelectronics",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "RS232 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b256cc912c6e368f714c00392c54e906.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "C1+",
        "type": "passive",
        "description": "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)."
      },
      {
        "number": "2",
        "name": "V+",
        "type": "power_out",
        "description": "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."
      },
      {
        "number": "3",
        "name": "C1-",
        "type": "passive",
        "description": "Negative terminal of the flying capacitor for the +V charge-pump voltage doubler. Pairs with C1+ (pin 1) via a 1.0 μF capacitor."
      },
      {
        "number": "4",
        "name": "C2+",
        "type": "passive",
        "description": "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)."
      },
      {
        "number": "5",
        "name": "C2-",
        "type": "passive",
        "description": "Negative terminal of the flying capacitor for the -V charge-pump voltage inverter. Pairs with C2+ (pin 4) via a 1.0 μF capacitor."
      },
      {
        "number": "6",
        "name": "V-",
        "type": "power_out",
        "description": "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."
      },
      {
        "number": "7",
        "name": "T2OUT",
        "type": "output",
        "description": "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."
      },
      {
        "number": "8",
        "name": "R2IN",
        "type": "input",
        "description": "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."
      },
      {
        "number": "9",
        "name": "R2OUT",
        "type": "output",
        "description": "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."
      },
      {
        "number": "10",
        "name": "T2IN",
        "type": "input",
        "description": "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."
      },
      {
        "number": "11",
        "name": "T1IN",
        "type": "input",
        "description": "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."
      },
      {
        "number": "12",
        "name": "R1OUT",
        "type": "output",
        "description": "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."
      },
      {
        "number": "13",
        "name": "R1IN",
        "type": "input",
        "description": "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."
      },
      {
        "number": "14",
        "name": "T1OUT",
        "type": "output",
        "description": "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."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return / common reference for logic, RS-232 signaling, and charge-pump capacitors."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "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."
      }
    ],
    "provenance": {
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      "datasheet": {
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        "pages": 9,
        "sha256": "0d944b0e3d04a763",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
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        "refuses_to_fabricate": true
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Corebai Microelectronics",
      "Package": "SOP-16",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "CBM232AS16",
      "kind": "packaging"
    },
    {
      "mpn": "CBM232ACS16",
      "kind": "unknown"
    }
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  "discovery_pitch": "CBM232AS16 (Corebai Microelectronics) component page with datasheet-verified CAD.",
  "author": {
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  "updated_at": "2026-09-24T18:29:01.354Z"
}