component
DS14C89AM
Public Made by Adomby adom
Texas Instruments RS232 ICs, SOIC-14. Pinout reviewed by a person 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
markdownDS14C89AM
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ds14c89am.step/ds14c89am.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (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).