component
TPT485E-SO1R
Public Made by Adomby adom
3PEAK RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+47@@ -0,0 +1,47 @@+# TPT485E-SO1R++**3PEAK** · RS-485 / RS-422 ICs · SOP-8++TPT485E-SO1R from 3PEAK, in a SOP-8. 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 | RO | output | Receiver Output. Digital CMOS output carrying the recovered data from the differential bus (A-B). Logic high when VID > VIT+ (typ -15 mV); high-Z when receiver is disabled (/RE = high or open). VOH ≥ 4.0V @ IOH = -8 mA; VOL ≤ 0.4V @ IOL = 8 mA. |+| 2 | /RE | input | Receiver Output Enable, active low. Drive low to enable the receiver output RO; drive high (or leave open) to place RO in high-Z. VIH = 2V min, VIL = 0.8V max. Tie to GND for permanent receive mode. |+| 3 | DE | input | Driver Output Enable, active high. Drive high to enable the differential driver onto A/B; drive low (or leave open) to place A/B in high-Z (driver disabled). VIH = 2V min, VIL = 0.8V max. |+| 4 | DI | input | Driver Input. Digital CMOS input that drives the RS-485 differential bus when DE is asserted. DI=H drives A high / B low; DI=L drives A low / B high. If DI is left open with DE high, the driver defaults to the 'bus high' state (A high, B low). VIH = 2V min, VIL = 0.8V max. |+| 5 | GND | power_in | Ground reference for the device. Connect to system ground. |+| 6 | A | bidirectional | Noninverting RS-485 bus pin: driver noninverting output and receiver noninverting input. Withstands -15V to +15V continuous and ±100V transient (through 100Ω), ±18kV HBM and ±12kV IEC61000-4-2 contact discharge. Bus input impedance ≥ 96 kΩ (1/8 unit load). Common-mode range -7V to +12V. |+| 7 | B | bidirectional | Inverting RS-485 bus pin: driver inverting output and receiver inverting input. Same protection and impedance ratings as A. Together with A forms the differential RS-485 pair (VID = VA - VB). |+| 8 | VCC | power_in | Supply voltage input, 4.5V to 5.5V (absolute max 7V). Decouple to GND with a 0.1 µF ceramic capacitor near the pin. Typical quiescent supply current is 650 µA with both driver and receiver enabled; <1 µA in shutdown (DE=GND, /RE=DI=VCC). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | 3PEAK |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `TPT485E-SO1RSO1R`++## CAD (KiCad official)++- Symbol: `TPT485E-SO1R`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [3PEAK datasheet](docs/tpt485e-so1r-datasheet.pdf) (8 pp, sha256 `43d4afd779e259fc`, 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/tpt485e-so1r-datasheet.pdf)
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