component
CA-IF1033S
Public Made by Adomby adom
Chipanalog CAN Transceivers, SOIC-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
markdownCA-IF1033S
Chipanalog · CAN Transceivers · SOIC-8
CA-IF1033S 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 | TXD | input | Transmit data input: driving TXD high makes the bus recessive and driving it low makes the bus dominant, with an internal pull-up to VCC. |
| 2 | GND | power_in | Power ground for the device. |
| 3 | VCC | power_in | Supply input (recommended 3 V to 3.6 V, absolute maximum 7 V); place a 0.1 µF capacitor between VCC and GND as close to the device as possible. |
| 4 | RXD | output | Receiver output: high when CANH and CANL are recessive and low when they are dominant, with recommended output current limited to ±2 mA and absolute maximum 8 mA. |
| 5 | SHDN | input | Shutdown input: low enables the driver and receiver, high shuts the device down, and the pin has an internal pull-down to GND. |
| 6 | CANL | bidirectional | Low-level CAN bus line; bus pins withstand ±18 V and bus-pin ESD protection exceeds ±25 kV HBM. |
| 7 | CANH | bidirectional | High-level CAN bus line; bus pins withstand ±18 V and bus-pin ESD protection exceeds ±25 kV HBM. |
| 8 | STB | input | Mode select input: high selects low-power standby mode with remote wake-up, low selects normal mode, and the pin has an internal pull-down to GND. |
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 |
|---|---|---|---|---|---|---|---|
| VCC bus supply voltage (absolute maximum) | VCC | -0.3 | 7 | V | 5 | ||
| CAN bus IO voltage (CANH, CANL) | V(BUS) | -18 | 18 | V | 5 | ||
| Maximum differential voltage CANH to CANL | V(DIFF) | -18 | 18 | V | 5 | ||
| Logic-side input voltage (TXD, S, STB, EN, SHDN) | V(Logic_Input) | -0.3 | V | 5 | |||
| Logic-side output voltage (RXD) | V(Logic_Output) | -0.3 | V | 5 | |||
| Logic-side output current (RXD) | IO(Logic_Output) | 8 | mA | 5 | |||
| Junction temperature | TJ | -55 | 150 | °C | 5 | ||
| Storage temperature | TSTG | -65 | 150 | °C | 5 | ||
| CAN bus supply voltage (recommended) | VCC | 3 | 3.6 | V | 5 | ||
| RXD pin high-level output current | IOH(RXD) | -2 | mA | 5 | |||
| RXD pin low-level output current | IOL(RXD) | 2 | mA | 5 | |||
| Operating ambient temperature range | TA | -40 | 125 | °C | 5 | ||
| Supply current, normal mode, typical bus load | Icc | 40 | 55 | mA | TXD=0V, RL=60 Ohm, CL=open, RCM=open, S/STB/SHDN=0V, EN=VCC, typical bus load | 6 | |
| Supply current, normal mode, high bus load | Icc | 44 | 60 | mA | TXD=0V, RL=50 Ohm, CL=open, RCM=open, S/STB/SHDN=0V, EN=VCC, high bus load | 6 | |
| Supply current, dominant with CANH at -12V | Icc | 110 | 180 | mA | TXD=0V, S/STB/SHDN=0V, CANH=-12V, RL=open, CL=open, RCM=open, EN=VCC | 6 | |
| Supply current, recessive (TXD high) | Icc | 0.9 | 2 | mA | TXD=VCC, RL=50 Ohm, RCM=open, CL=open, S/STB/SHDN=0V, EN=VCC | 6 | |
| Supply current, standby mode (CA-IF1033S) | Icc | 9 | 15 | μA | TXD=VCC, RL=50 Ohm, RCM=open, CL=open, STB=VCC, SHDN=0V | 6 | |
| Supply current, shutdown mode (CA-IF1033S) | Icc | 1 | μA | TXD=VCC, RL=50 Ohm, RCM=open, CL=open, SHDN=VCC / EN=0V | 6 | ||
| VCC UVLO rising threshold | UVVCC+ | 2.2 | 2.6 | V | 6 | ||
| VCC UVLO falling threshold | UVVCC- | 1.65 | 2 | 2.5 | V | 6 | |
| High-level input voltage (S, STB, SHDN, EN) | VIH | 2 | V | 6 | |||
| Low-level input voltage (S, STB, SHDN, EN) | VIL | 0.8 | V | 6 | |||
| High-level input leakage current (S, STB, SHDN, EN) | IIH | -3 | 10 | μA | 6 | ||
| Low-level input leakage current (S, STB, SHDN, EN) | IIL | -4 | 1 | μA | 6 | ||
| Unpowered leakage current (S, STB, SHDN, EN) | Ilek(off) | -3 | 5 | μA | 6 | ||
| High-level input voltage (TXD) | VIH | 2 | V | 6 | |||
| Low-level input voltage (TXD) | VIL | 0.8 | V | 6 | |||
| High-level input leakage current (TXD) | IIH | -2.5 | 0 | 3 | μA | TXD=VCC=3.6V | 6 |
| Low-level input leakage current (TXD) | IIL | -4 | 0 | μA | TXD=0V, VCC=3.6V | 6 | |
| Unpowered leakage current (TXD) | Ilek(off) | -2 | 0 | 2.5 | μA | TXD=3.6V, VCC=0V | 6 |
| Low-level output voltage (RXD) | VOL | 0.2 | 0.4 | V | Io=2mA | 6 | |
| Unpowered leakage current (RXD) | Ilek(off) | -1 | 0 | 1 | μA | RXD=3.6V, VCC=0V | 6 |
| Single-ended dominant output voltage, CANH | VO(DOM) | 2.45 | V | Normal mode, TXD=0V, RL=60 Ohm, CL=open, RCM=open, CANH pin | 6 | ||
| Single-ended dominant output voltage, CANL | VO(DOM) | 0.5 | 1.25 | V | Normal mode, TXD=0V, RL=50-65 Ohm, CL=open, RCM=open, CANL pin | 6 | |
| Standby bus voltage, CANH | VO(STB) | -0.1 | 0.1 | V | Standby mode 3, RL open, RCM open, CANH | 7 | |
| Standby bus voltage, CANL | VO(STB) | -0.1 | 0.1 | V | Standby mode 3, RL open, RCM open, CANL | 7 | |
| Standby differential bus voltage, CANH-CANL | VO(STB) | -0.2 | 0.2 | V | Standby mode 3, RL open, RCM open, CANH-CANL | 7 | |
| Differential output voltage, dominant (RL 45-50 Ohm) | VOD(DOM) | 1.5 | 2 | 3 | V | Normal mode, TXD=0V, RL=45-50 Ohm, RCM open, CANH-CANL | 7 |
| Differential output voltage, dominant (RL 50-65 Ohm) | VOD(DOM) | 1.6 | 3 | V | Normal mode, TXD=0V, RL=50-65 Ohm, RCM open, CANH-CANL | 7 | |
| Differential output voltage, recessive (RL 60 Ohm) | VOD(REC) | -120 | 12 | mV | Normal mode, TXD=VCC, RL=60 Ohm, CL=open, RCM=open, CANH-CANL | 7 | |
| Differential output voltage, recessive (RL open) | VOD(REC) | -50 | 50 | mV | Normal mode, TXD=VCC, RL=open, CL=open, RCM=open, CANH-CANL | 7 | |
| DC symmetry (dominant and recessive) | Vsym_DC | -0.4 | 0.4 | V | Normal mode, RL=60 Ohm, RCM open | 7 | |
| Short-circuit current, dominant (CANH at -12V) | IOS(SS_DOM) | -200 | mA | Normal mode, TXD=0V, CANL open, CANH=-12V | 7 | ||
| Short-circuit current, dominant (CANL at 12V) | IOS(SS_DOM) | 200 | mA | Normal mode, TXD=0V, CANH open, CANL=12V | 7 | ||
| Short-circuit current, recessive | IOS(SS_rec) | -5 | 5 | mA | Normal mode, TXD=VCC, VBUS=CANH=CANL from -12V to 12V | 7 | |
| Common-mode input voltage range | VCM | -12 | 12 | V | Normal mode, listen mode and standby mode, RXD output valid | 7 | |
| Normal/listen mode input threshold voltage | VIT | 500 | 900 | mV | Normal and listen mode, Vcm from -12V to 12V | 7 | |
| Standby mode input threshold voltage | VIT(STB) | 400 | 1150 | mV | Standby mode 3, Vcm from -12V to 12V | 7 | |
| CANH/CANL input resistance | RIN | 10 | 40 | kΩ | Normal mode, TXD=VCC | 7 | |
| Differential input resistance | RDIFF | 20 | 80 | kΩ | Normal mode, TXD=VCC | 7 | |
| Input resistance matching | RDIFF(M) | -3 | 3 | % | CANH=CANL | 7 | |
| Input leakage current | ILKG | 5 | μA | VCC=0V, VCANH=VCANL=3.3V | 7 | ||
| Dominant timeout (TXD) | tDTO | 1.6 | 3 | 5 | ms | Normal mode, RL=60 Ohm, CL open, Fig 7-5 | 8 |
| Loop delay, recessive to dominant | tloop1 | 105 | 255 | ns | RL=60 Ohm, CL=100pF, Fig 7-3 | 8 | |
| Loop delay, dominant to recessive | tloop2 | 130 | 255 | ns | RL=60 Ohm, CL=100pF, Fig 7-3 | 8 | |
| Mode transition time (standby to normal or normal to standby) | TMODE | 12 | 45 | μs | Fig 7-4 | 8 | |
| Valid wake-up filter time | tWK_FILTER | 0.5 | 1.8 | μs | Fig 9-4 | 8 | |
| Bus wake-up timeout | tWK_TIMEOUT | 0.8 | 10 | ms | Fig 9-4 | 8 | |
| Thermal resistance junction-to-ambient (SOIC8) | RθJA | 170 | °C/W | SOIC8 package column | 5 | ||
| Thermal shutdown threshold | TTSD1 | 170 | °C | 7 |
CAD (KiCad official)
- Symbol:
CA-IF1033S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
ca-if1033s-etched.step/ca-if1033s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ca-if1033s.step/ca-if1033s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Chipanalog datasheet (24 pp, sha256
cf1740e1bc106780, retrieved 2026-10-18, 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 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).