component
CA-IF4820HM
Public Made by Adomby adom
Chipanalog RS-485 / RS-422 ICs, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownCA-IF4820HM
Chipanalog · RS-485 / RS-422 ICs · MSOP-8
CA-IF4820HM from Chipanalog, in a MSOP-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; high when (VA - VB) > -20mV, low when (VA - VB) < -200mV, or high-impedance when REB is high. |
| 2 | REB | input | Receiver enable control, active low; receiver enabled when low, output high-impedance when high. |
| 3 | DE | input | Driver enable control, active high; driver enabled when high, outputs high-impedance when low. |
| 4 | DI | input | Driver data input; when DE is high, DI high drives A high and B low, DI low drives A low and B high. |
| 5 | GND | power_in | Ground; reference for all signal levels and bus common mode. |
| 6 | A | bidirectional | RS-485/RS-422 differential bus non-inverting side; ±30V overvoltage protection, ±30kV HBM ESD protection. |
| 7 | B | bidirectional | RS-485/RS-422 differential bus inverting side; ±30V overvoltage protection, ±30kV HBM ESD protection. |
| 8 | VCC | power_in | Power supply input, 3.0V to 5.5V; bypass with ≥0.1μF capacitor placed close to pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Chipanalog |
| Package | MSOP-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
CA-IF4820HM - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
ca-if4820hm-etched.step/ca-if4820hm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ca-if4820hm.step/ca-if4820hm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Chipanalog datasheet (24 pp, sha256
2bf29538f533f541, retrieved 2026-09-18, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).