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DS14C89AM
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Texas Instruments RS232 ICs, SOIC-14. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# DS14C89AM++**Texas Instruments** · RS232 ICs · SOIC-14++DS14C89AM from Texas Instruments, in a SOIC-14. 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 | IN_A | input | EIA/TIA-232-E / CCITT V.28 level input for receiver channel A; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max; IIN up to 8.3 mA at ±25 V. |+| 2 | RC_A | unconnected | Response control / filter pin for channel A; on-chip noise filter makes this pin non-functional on DS14C89A - may be tied high, low, or left unconnected. |+| 3 | OUT_A | output | TTL/CMOS logic-level output for receiver channel A; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; output goes high for open input (fail-safe). |+| 4 | IN_B | input | EIA/TIA-232-E / CCITT V.28 level input for receiver channel B; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max. |+| 5 | RC_B | unconnected | Response control / filter pin for channel B; non-functional on DS14C89A due to on-chip filtering - may be tied high, low, or left unconnected. |+| 6 | OUT_B | output | TTL/CMOS logic-level output for receiver channel B; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; fail-safe output high for open input. |+| 7 | GND | power_in | Ground reference (0 V); supply return for VCC pin 14. |+| 8 | OUT_C | output | TTL/CMOS logic-level output for receiver channel C; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; fail-safe output high for open input. |+| 9 | RC_C | unconnected | Response control / filter pin for channel C; non-functional on DS14C89A due to on-chip filtering - may be tied high, low, or left unconnected. |+| 10 | IN_C | input | EIA/TIA-232-E / CCITT V.28 level input for receiver channel C; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max. |+| 11 | OUT_D | output | TTL/CMOS logic-level output for receiver channel D; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; fail-safe output high for open input. |+| 12 | RC_D | unconnected | Response control / filter pin for channel D; non-functional on DS14C89A due to on-chip filtering - may be tied high, low, or left unconnected. |+| 13 | IN_D | input | EIA/TIA-232-E / CCITT V.28 level input for receiver channel D; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max. |+| 14 | VCC | power_in | Positive supply voltage; recommended operating range 4.5 V to 5.5 V; ICC max 900 μA (no load); absolute maximum +6 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-14 |+| Category | Interface |+| Pins | 14 |++## CAD (KiCad official)++- Symbol: `DS14C89AM`+- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`+- 3D model: SOIC-14 (KiCad packages3D, STEP)+- 3D model files: `ds14c89am-etched.step` / `ds14c89am-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ds14c89am.step` / `ds14c89am.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ds14c89a) (16 pp, sha256 `a0c9ff903402214a`, retrieved 2026-09-29, 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/ds14c89am-datasheet.pdf)
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Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "ds14c89am",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ds14c89am.kicad_sym",+ "ds14c89am.kicad_mod",+ "ds14c89am.glb",+ "ds14c89am.step",+ "ds14c89am.lbr",+ "docs/hero.png",+ "docs/ds14c89am-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "DS14C89AM",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-14",+ "pin_count": 14,+ "category": "Interface",+ "subcategory": "RS232 ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ds14c89a",+ "parts": {+ "symbol": "ds14c89am.kicad_sym",+ "footprint": "ds14c89am.kicad_mod",+ "model_3d": "ds14c89am-etched.glb",+ "model_3d_plain": "ds14c89am.glb",+ "model_3d_step": "ds14c89am-etched.step",+ "model_3d_step_plain": "ds14c89am.step",+ "lbr": "ds14c89am.lbr"+ },+ "distributor_links": {+ "lcsc": "C139346",+ "digikey": "DS14C89AM-ND",+ "mouser": "926-DS14C89AM"+ },+ "distributor_check": {+ "checked_at": "2026-09-29T23:30:47Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "DS14C89AM-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-DS14C89AM",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "IN_A",+ "type": "input",+ "description": "EIA/TIA-232-E / CCITT V.28 level input for receiver channel A; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max; IIN up to 8.3 mA at ±25 V."+ },+ {+ "number": "2",+ "name": "RC_A",+ "type": "unconnected",+ "description": "Response control / filter pin for channel A; on-chip noise filter makes this pin non-functional on DS14C89A - may be tied high, low, or left unconnected."+ },+ {+ "number": "3",+ "name": "OUT_A",+ "type": "output",+ "description": "TTL/CMOS logic-level output for receiver channel A; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; output goes high for open input (fail-safe)."+ },+ {+ "number": "4",+ "name": "IN_B",+ "type": "input",+ "description": "EIA/TIA-232-E / CCITT V.28 level input for receiver channel B; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max."+ },+ {+ "number": "5",+ "name": "RC_B",+ "type": "unconnected",+ "description": "Response control / filter pin for channel B; non-functional on DS14C89A due to on-chip filtering - may be tied high, low, or left unconnected."+ },+ {+ "number": "6",+ "name": "OUT_B",+ "type": "output",+ "description": "TTL/CMOS logic-level output for receiver channel B; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; fail-safe output high for open input."+ },+ {+ "number": "7",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V); supply return for VCC pin 14."+ },+ {+ "number": "8",+ "name": "OUT_C",+ "type": "output",+ "description": "TTL/CMOS logic-level output for receiver channel C; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; fail-safe output high for open input."+ },+ {+ "number": "9",+ "name": "RC_C",+ "type": "unconnected",+ "description": "Response control / filter pin for channel C; non-functional on DS14C89A due to on-chip filtering - may be tied high, low, or left unconnected."+ },+ {+ "number": "10",+ "name": "IN_C",+ "type": "input",+ "description": "EIA/TIA-232-E / CCITT V.28 level input for receiver channel C; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max."+ },+ {+ "number": "11",+ "name": "OUT_D",+ "type": "output",+ "description": "TTL/CMOS logic-level output for receiver channel D; VOH min 2.8 V at IOUT = −3.2 mA, VOL max 0.4 V at IOUT = +3.2 mA; fail-safe output high for open input."+ },+ {+ "number": "12",+ "name": "RC_D",+ "type": "unconnected",+ "description": "Response control / filter pin for channel D; non-functional on DS14C89A due to on-chip filtering - may be tied high, low, or left unconnected."+ },+ {+ "number": "13",+ "name": "IN_D",+ "type": "input",+ "description": "EIA/TIA-232-E / CCITT V.28 level input for receiver channel D; input threshold VTL 0.5-1.9 V, VTH 1.3-2.7 V; tolerates ±30 V max."+ },+ {+ "number": "14",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply voltage; recommended operating range 4.5 V to 5.5 V; ICC max 900 μA (no load); absolute maximum +6 V."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ds14c89a",+ "pages": 16,+ "sha256": "a0c9ff903402214a",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 14,+ "described": 14,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}