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HX82C251-S
Public Made by Adomby adom
ZHHXDZ CAN Transceivers, SOP-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
markdownHX82C251-S
ZHHXDZ · CAN Transceivers · SOP-8
HX82C251-S from ZHHXDZ, in a SOP-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 | D | input | D transmit data input; the D pin has a pull-up to VCC so the bus stays recessive when D is unpowered, and a dominant timeout releases the bus if D is held low longer than tdom (300 to 700 μs). |
| 2 | GND | power_in | GND ground supply. |
| 3 | VCC | power_in | VCC supply voltage, VCC=5V±10% (absolute maximum supply range 4.5 V to 5.5 V). |
| 4 | R | output | R receive data output that reads out data from the bus lines; it goes unconnected if the supply drops, to prevent reverse power flow. |
| 5 | Vref | power_in | Vref common-mode stabilization output, typically 0.3VCC to 0.7VCC for -500 μA < Io < 500 μA. |
| 6 | CANL | bidirectional | CANL LOW-level CAN bus line; bus-side port voltage is rated -60 V to +60 V, with transient voltage of -200 V to +200 V on pins 6 and 7. |
| 7 | CANH | bidirectional | CANH HIGH-level CAN bus line; bus-side port voltage is rated -60 V to +60 V, with transient voltage of -200 V to +200 V on pins 6 and 7. |
| 8 | Rs | input | Rs high-speed and standby mode selection: low (grounded) selects high-speed mode, while high or unconnected selects standby mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ZHHXDZ |
| Package | SOP-8 |
| Category | Communication Interface Chip |
| 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 range | VCC | 4.5 | 5.5 | V | 2 | ||
| Bus-side port voltage | CANL, CANH, Vref | -60 | 60 | V | 2 | ||
| Pin 6, 7 transient voltage | Vtr | -200 | 200 | V | 2 | ||
| MCU side port voltage | D, R, Rs | -0.3 | V | max printed as VCC+0.3 | 2 | ||
| Storage temperature | -55 | 150 | ℃ | 2 | |||
| Ambient temperature | -40 | 85 | ℃ | 2 | |||
| Welding temperature range | 300 | ℃ | 2 | ||||
| SOP8 continuous power consumption | 400 | mW | 2 | ||||
| CANH output voltage (dominant) | VOH(D) | 2.9 | 3.4 | 4.5 | V | VI=0V，Rs=0V，RL=60Ω，F1、2 | 2 |
| CANL output voltage (dominant) | VOL(D) | 0.8 | 1.5 | V | 2 | ||
| Bus output differential voltage (implicit) | VO(R) | 2 | 2.5 | 3 | V | VI=3V,Rs=0V，RL=60Ω，F1、2 | 2 |
| Bus output differential voltage (dominant) | VOD(D) | 1.5 | 3 | V | VI=0V,Rs=0V，RL=60Ω，F1、2 | 2 | |
| Bus output differential voltage (implicit) | VOD(R) | -0.012 | 0.012 | V | VI=3V, S=0V, F1、2 | 2 | |
| Bus output differential voltage (implicit), no load | VOD(R) | -0.5 | 0.05 | V | VI=3V，Rs=0V，NO LOAD | 2 | |
| Dominant output voltage symmetry | Vdom(TX)sym | -400 | 400 | mV | 2 | ||
| Common mode output voltage | VOC | 2 | 2.5 | 3 | V | Rs=0V，F 8 | 2 |
| Explicit and implicit common mode output voltage difference | ΔVOC | 30 | mV | 2 | |||
| Short-circuit output current | IOS | -105 | -72 | mA | CANH=-12V，CANL=open，F11 | 2 | |
| Short-circuit output current | IOS | 0.36 | 1 | mA | CANH=12V，CANL=open，F11 | 2 | |
| Short-circuit output current | IOS | -1 | 0.5 | mA | CANL=-12V，CANH=open，F11 | 2 | |
| Short-circuit output current | IOS | 71 | 105 | mA | CANL=12V，CANH=open，F11 | 2 | |
| Hidden output current | IO(R) | -2 | 2.5 | mA | -27V<CANH<32V 0<VCC<5.25V | 2 | |
| Transmission delay (low to high) | tPLH | 25 | 65 | 120 | ns | Rs=0V，F 4 | 2 |
| Transmission delay (high to low) | tPHL | 25 | 45 | 90 | ns | 2 | |
| Differential output rise delay time | tr | 25 | ns | 2 | |||
| Differential output fall delay time | tf | 50 | ns | 2 | |||
| Enable time from listen mode to dominant | tEN | 10 | μs | F 7 | 2 | ||
| Explicit timeout | tdom | 300 | 450 | 700 | μs | F 10 | 2 |
| Bus wake-up time | tBUS | 0.7 | 5 | μs | 2 | ||
| Positive input threshold | VIT+ | 800 | 900 | mV | S=0V，F5 | 3 | |
| Negative input threshold | VIT- | 500 | 650 | mV | 3 | ||
| Comparator threshold hysteresis interval | VHYS | 100 | 125 | mV | 3 | ||
| High level output voltage | VOH | 4 | 4.6 | V | IO=-2mA，F6 | 3 | |
| Low level output voltage | VOL | 0.2 | 0.4 | V | IO=2Ma,F6 | 3 | |
| Bus input current at power down | I(OFF) | 5 | μA | CANH or CANL=5V，Other pin=0V | 3 | ||
| CANH, CANL input capacitance to ground | CI | 13 | pF | 3 | |||
| CANH, CANL differential input capacitors | CID | 5 | pF | 3 | |||
| CANH, CANL input resistance | RIN | 15 | 30 | 40 | KΩ | D=3V，Rs=0V | 3 |
| CANH, CANL differential input resistors | RID | 30 | 80 | KΩ | 3 | ||
| RI(CANH), RIN(CANL) mismatches | RImatch | -3 | 3 | % | CANH=CANL | 3 | |
| Common mode voltage range | VCOM | -12 | 12 | V | 3 | ||
| Propagation delay (low to high) | tPLH | 60 | 100 | 130 | ns | Rs=0V or VCC F6 | 3 |
| Propagation delay (high to low) | tPHL | 45 | 70 | 90 | ns | 3 | |
| R signal rise time | tr | 8 | ns | 3 | |||
| R signal fall time | tf | 8 | ns | 3 | |||
| Loop delay 1, driver input to receiver output, implicit to explicit | Td(LOOP1) | 90 | 190 | ns | Rs=0V，F9 | 3 | |
| Loop delay 2, driver input to receiver output, explicit to implicit | Td(LOOP2) | 90 | 190 | ns | 3 | ||
| Over temperature shutdown | Tj(sd) | 155 | 165 | 180 | ℃ | 3 | |
| Common mode stabilised output leakage current | IO(Rs) | -5 | 5 | μA | Rs=2V,-12V<VO<12V | 3 | |
| D port high level input current | IIH(D) | -2 | 2 | μA | VI=VCC | 3 | |
| D port low level input current | IIL(D) | -50 | -10 | μA | VI=0 | 3 | |
| Current in D when VCC=0V | IO(off) | 1 | μA | VCC=0V，D=5V | 3 | ||
| Input high level lower limit | VIH | 2 | V | max printed as VCC+0.3 | 3 | ||
| Input low limit | VIL | -0.3 | 0.8 | V | 3 | ||
| Silent mode power consumption | ICC | 5 | 12 | μA | Rs=VCC，VI=VCC | 3 | |
| Dominant power consumption | ICC | 50 | 70 | mA | VI=0V，S=0V，LOAD=60Ω | 3 | |
| Implicit power consumption | ICC | 6 | 10 | mA | VI=VCC，S=0V，NO LOAD | 3 |
CAD (KiCad official)
- Symbol:
HX82C251-S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
hx82c251-s-etched.step/hx82c251-s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hx82c251-s.step/hx82c251-s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ZHHXDZ datasheet (9 pp, sha256
e22d9c888e329735, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).