component
MAX487-TD
Public Made by Adomby adom
TDSEMIC RS-485 / RS-422 ICs, DIP-8. Pinout cross-checked by two models 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
markdownMAX487-TD
TDSEMIC · RS-485 / RS-422 ICs · DIP-8
MAX487-TD from TDSEMIC, in a DIP-8. 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 | RO | output | Receiver output: RO is high when A is more than 200mV above B, and low when A is more than 200mV below B. |
| 2 | RE | input | Receiver enable, active low; when RE is high the receiver output is high impedance. |
| 3 | DE | input | Driver enable, active high; when DE is low the driver outputs are high impedance, and when DE is high the chip is in transmit mode (receive mode when DE and RE are both low). |
| 4 | DI | input | Driver data input: when DI is low A is high and B is low, and when DI is high the outputs are the opposite. |
| 5 | GND | power_in | Ground, negative supply terminal. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output. |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output. |
| 8 | VCC | power_in | Positive power supply terminal. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TDSEMIC |
| Package | DIP-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
MAX487-TD - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
max487-td-etched.step/max487-td-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max487-td.step/max487-td.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TDSEMIC datasheet (11 pp, sha256
21d1f2cac87a9686, retrieved 2026-10-19, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).