component

CA-IF4888HS

Public Made by Adom

by adom

Chipanalog RS-485/RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterfaceca-if4888hsfactory-2.0.0extractor-text

Verified CA-IF4888HS

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: CA-IF4888HS · SOIC-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 16-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOIC-8_3.9x4.9mm_P1.27mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-8avkljvx/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.13)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ca-if4888hs.kicad_sym✓ ca-if4888hs.kicad_mod✓ ca-if4888hs.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray
viewers ca-if4888hs: viewers · Ray
ca-if4888hs-etched.glb Publish 0.1.0 · Ray
ca-if4888hs-etched.step ca-if4888hs: factory component page (tier=lcsc) · Ray
ca-if4888hs-hero.glb ca-if4888hs: hero GLB from the etched model (keeps the MPN mark) · Ray
ca-if4888hs-hero.overlay.json Publish 0.1.0 · Ray
ca-if4888hs.glb Publish 0.1.0 · Ray
ca-if4888hs.kicad_mod Publish 0.1.0 · Ray
ca-if4888hs.kicad_sym Publish 0.1.0 · Ray
ca-if4888hs.lbr Publish 0.1.0 · Ray
ca-if4888hs.step Publish 0.1.0 · Ray
package.json Publish 0.1.0 · Ray
page.json Set visibility: public · Ray
README.md Publish 0.1.0 · Ray
verification.json Verified: Published by the parts factory: tier lcsc, 8 pins · Ray

CA-IF4888HS

Chipanalog · RS-485/RS-422 ICs · SOIC-8

CA-IF4888HS from Chipanalog, in a SOIC-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 data output (digital output); high-impedance when REB is high, with output swing VOH ≥ VCC-0.4 V at IOH = -4 mA and VOL ≤ 0.4 V at IOL = 4 mA.
2 REB input Receiver enable input, active low; REB low enables the receiver, REB high or open puts RO in high impedance.
3 DE input Driver enable input, active high; has an internal pull-down so the driver is disabled (high-impedance) when open.
4 DI input Driver data input; has an internal pull-up to VCC so A is high and B low when floating with the driver enabled.
5 GND power_in Ground.
6 A bidirectional Driver output / receiver input A on the RS-485 bus, with ±30 kV HBM ESD, ±15 V common-mode range and ±30 V fault protection.
7 B bidirectional Driver output / receiver input B on the RS-485 bus, with ±30 kV HBM ESD, ±15 V common-mode range and ±30 V fault protection.
8 VCC power_in Power supply, 3 V to 5.5 V recommended operating range (absolute maximum 7.0 V).

Key specifications

Parameter Value
Manufacturer Chipanalog
Package SOIC-8
Category Interface
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC -0.3 7 V 3
Bus pin voltage A,B VIO -30 30 V A,B 3
Logic pin voltage DI,DE,REB VIO -0.3 7 V DI,DE,REB 3
RO pin voltage (lower limit) VIO -0.3 V RO; upper limit VCC+0.3 V 3
Junction temperature TJ 150 °C 3
Storage temperature TSTG -65 150 °C 3
HBM ESD, bus pins VESD -30 30 kV HBM, ANSI/ESDA/JEDEC JS-001, bus pins 3
HBM ESD, other pins VESD -6 6 kV HBM, ANSI/ESDA/JEDEC JS-001, other pins 3
Supply voltage VCC 3 5 5.5 V 4
Bus input voltage VIN -15 15 V 4
Low-level input threshold VIL 0 0.8 V 4
High-level input threshold (lower limit) VIH 2 V upper limit VCC 4
Differential load resistance RL 54 Ohm 4
Data rate 1/tUI 500 kbps 4
Ambient temperature TA -40 125 °C 4
Junction temperature TJ -40 150 °C 4
Junction-to-ambient thermal resistance RθJA 115 °C/W SOIC8 4
Junction-to-case (top) thermal resistance RθJC 60 °C/W SOIC8 4
Differential output voltage /VOD/ 1.5 3.5 V RL =60 Ω, -15 V ≤ Vtest ≤ 15 V 5
Differential output voltage /VOD/ 2.1 V RL =60 Ω, -15 V ≤ Vtest ≤ 15 V, 4.5 V ≤ VCC ≤ 5.5 V 5
Differential output voltage /VOD/ 2 4 V RL = 100 Ω 5
Differential output voltage /VOD/ 1.5 3.7 V RL = 54 Ω 5
Change in differential output voltage Δ/VOD/ -200 200 mV RL = 54 Ω 5
Common-mode output voltage VOC 1 3 V 5
Change in common-mode output voltage ΔVOC(SS) -200 200 mV 5
Short-circuit output current IOS -250 250 mA -7 V ≤ VO ≤ 12 V 5
Bus input current II 72 125 μA DE = 0 V, VCC = 0 V or 5 V, VI = 12V 5
Bus input current II -100 -43 μA DE = 0 V, VCC = 0 V or 5 V, VI = -7V 5
Bus input current II 91 125 μA DE = 0 V, VCC = 0 V or 5V, VI = 15V 5
Bus input current II -200 -97 μA DE = 0 V, VCC = 0 V or 5V, VI = -15V 5
Positive-going input threshold voltage VTH+ -100 -20 mV Within common-mode range 5
Negative-going input threshold voltage VTH- -200 -130 mV Within common-mode range 5
Input hysteresis voltage VHYS 30 mV 5
Output low voltage VOL 0.2 0.4 V IOL = 4 mA 5
Output high-impedance current IOZR -1 1 μA VO = 0 V or VCC, REB= VCC 5
Logic input current IIN -6.2 6.2 μA 3 V ≤ VCC ≤ 5.5 V, 0 V ≤ VIN ≤ VCC 5
Supply current, driver and receiver enabled ICC 2.4 3 mA REB=0V, DE = VCC, no load 5
Supply current, driver enabled, receiver off ICC 0.8 1.2 mA REB=VCC, DE = VCC, no load 5
Supply current, driver off, receiver enabled ICC 700 960 μA REB=0V, DE = 0V, no load 5
Supply current, driver and receiver off ICC 2.4 5 μA REB=VCC, DE = 0V, DI=open, no load 5
Thermal shutdown temperature TSD 180 °C 5
Driver rise/fall time tr, tf 250 360 680 ns RL = 54 Ω, CL = 50 pF 6
Driver propagation delay tPHL, tPLH 280 500 ns RL = 54 Ω, CL = 50 pF 6
Driver pulse skew tSK(P) 10 ns /tPHL, tPLH/ 6
Driver disable time tPHZ, tPLZ 10 200 ns RL = 54 Ω, CL = 50 pF 6
Driver enable time tPZH, tPZL 100 600 ns REB = 0 V 6
Driver enable time tPZH, tPZL 7.2 11 μs REB = VCC 6
Receiver rise/fall time tr, tf 3.8 10 ns CL = 15 pF 6
Receiver propagation delay tPHL, tPLH 23 110 ns CL = 15 pF 6
Receiver pulse skew tSK(P) 7 ns /tPHL, tPLH/ 6
Receiver disable time tPHZ, tPLZ 7 20 ns CL = 15 pF 6
Receiver enable time tPZH(1), tPZL(1) 8 20 ns DE = VCC 6
Receiver enable time tPZH(2), tPZL(2) 7 14 μs DE = 0 V 6
Bus failsafe time tFS 38 76 114 ms Driver disabled 6

CAD (KiCad official)

  • Symbol: CA-IF4888HS
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ca-if4888hs-etched.step / ca-if4888hs-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ca-if4888hs.step / ca-if4888hs.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Chipanalog datasheet (16 pp, sha256 cfae97ab1df30445, retrieved 2026-10-30, 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, primary claude-sonnet-5-5 (text), consensus claude-sonnet-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).

Datasheet PDF