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HX82C251-S

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ZHHXDZ CAN Transceivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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HX82C251-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hx82c251-s.step / hx82c251-s.glb are 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, primary claude-haiku-5-5 (text), consensus off (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).

Datasheet PDF