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HT65LBC184ARZ
Public Made by Adomby adom
HTCSEMI RS-485 / RS-422 ICs, 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
markdownHT65LBC184ARZ
HTCSEMI · RS-485 / RS-422 ICs · SOP-8
HT65LBC184ARZ from HTCSEMI, 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 | RO | output | Receiver output, three-state; high when A-B is at least +0.2V or the input is open, low when A-B is at most -0.2V, high impedance when RE is high. |
| 2 | RE | input | Receiver output enable, active low; RE low enables RO and RE high puts RO in high impedance, with input thresholds VIH 2.0V min and VIL 0.8V max. |
| 3 | DE | input | Driver output enable, active high; DE high enables the driver outputs and DE low puts them in high impedance, with input thresholds VIH 2.0V min and VIL 0.8V max. |
| 4 | DI | input | Driver input; with DE high a low on DI forces the non-inverting output low and a high forces it high, with input thresholds VIH 2.0V min and VIL 0.8V max. |
| 5 | GND | power_in | Ground reference for all device voltages. |
| 6 | A | bidirectional | Non-inverting receiver input and driver output on the bus, with absolute maximum voltage of -8V to +12.5V and ±15kV HBM ESD protection. |
| 7 | B | bidirectional | Inverting receiver input and driver output on the bus, with absolute maximum voltage of -8V to +12.5V and ±15kV HBM ESD protection. |
| 8 | VCC | power_in | Single 5V ±5% supply input, with absolute maximum rating of 12V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTCSEMI |
| Package | SOP-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 (continuous) | VCC | 12 | V | Continuous | 1 | ||
| Control input voltage | -0.5 | V | Maximum printed as (VCC + 0.5V) | 1 | |||
| Driver input voltage (DI) | -0.5 | V | Maximum printed as (VCC+ 0.5V) | 1 | |||
| Driver output voltage (A, B) | -8 | 12.5 | V | 1 | |||
| Receiver input voltage (A, B) | -8 | 12.5 | V | 1 | |||
| Receiver output voltage (RO) | -0.5 | V | Maximum printed as (VCC+0.5V) | 1 | |||
| Continuous power dissipation | 471 | mW | 8-Pin SO (derate 5.88mW/°C) | 1 | |||
| Operating temperature range | TA | -40 | 85 | °C | 1 | ||
| Storage temperature range | -65 | 160 | °C | As printed (+160°C) | 1 | ||
| Lead temperature | 300 | °C | Soldering, 10 sec | 1 | |||
| Supply voltage nominal | VCC | 5 | V | VCC = 5V ±5% | 2 | ||
| Supply voltage tolerance | VCC | -5 | 5 | % | VCC = 5V ±5% | 2 | |
| Differential driver output (no load) | VOD1 | 4.75 | 5.25 | V | No load | 2 | |
| Differential driver output (with load) | VOD2 | 2 | V | R = 50Ω (RS-422) | 2 | ||
| Differential driver output (with load) | VOD2 | 1.5 | 5 | V | R = 27Ω (RS-485), Figure 4 | 2 | |
| Change in magnitude of driver differential output voltage for complementary output states | ∆VOD | 0.2 | V | R = 27Ω or 50Ω, Figure 4 | 2 | ||
| Driver common-mode output voltage | VOC | 3 | V | R = 27Ω or 50Ω, Figure 4 | 2 | ||
| Change in magnitude of driver common-mode output voltage for complementary output states | ∆VOC | 0.2 | V | R = 27Ω or 50Ω, Figure 4 | 2 | ||
| Input high voltage | VIH | 2 | V | DE, DI, RE | 2 | ||
| Input low voltage | VIL | 0.8 | V | DE, DI, RE | 2 | ||
| Input current | IIN1 | -2 | 2 | µA | DE, DI, RE | 2 | |
| Input current (A, B) | IIN2 | 1 | mA | DE = 0V; VIN = 12V | 2 | ||
| Input current (A, B) | IIN2 | -0.8 | mA | VCC = 0V or 5.25V, VIN = -7V | 2 | ||
| Receiver differential threshold voltage | VTH | -0.2 | 0.2 | V | -7V ≤ VCM ≤ 12V | 2 | |
| Receiver output high voltage | VOH | 3.5 | V | IO = -4mA, VID = 200mV | 2 | ||
| Receiver output low voltage | VOL | 0.4 | V | IO = 4mA, VID = -200mV | 2 | ||
| Three-state (high impedance) output current at receiver | IOZR | -1 | 1 | µA | 0.4V ≤ VO ≤ 2.4V | 2 | |
| No-load supply current | ICC | 500 | 900 | µA | DE = VCC | 2 | |
| No-load supply current | ICC | 300 | 500 | µA | RE = 0V or VCC, DE = 0V | 2 | |
| Driver short-circuit current, VO = High | IOSD1 | 35 | 250 | mA | -7V ≤ VO ≤ 12V (Note 4) | 2 | |
| Driver short-circuit current, VO = Low | IOSD2 | 35 | 250 | mA | -7V ≤ VO ≤ 12V (Note 4) | 2 | |
| Receiver short-circuit current | IOSR | 7 | 95 | mA | 0V ≤ VO ≤ VCC | 2 | |
| Driver input to output (rising) | tPLH | 10 | 30 | 60 | ns | RDIFF = 54, CL1 = CL2 = 100pF | 3 |
| Driver input to output (falling) | tPHL | 10 | 30 | 60 | ns | RDIFF = 54, CL1 = CL2 = 100pF | 3 |
| Driver output skew to output | tSKEW | 5 | 10 | ns | RDIFF = 54, CL1 = CL2 = 100pF | 3 | |
| Driver enable to output high | tZH | 40 | 70 | ns | CL = 100pF, S2 closed | 3 | |
| Driver enable to output low | tZL | 40 | 70 | ns | CL = 100pF, S1 closed | 3 | |
| Driver disable time from low | tLZ | 40 | 70 | ns | CL = 15pF, S1 closed | 3 | |
| Driver disable time from high | tHZ | 40 | 70 | ns | CL = 15pF, S2 closed | 3 | |
| Differential receiver skew /tPLH - tPHL/ | tSKD | 13 | ns | RDIFF = 54, CL1 = CL2 = 100pF | 3 | ||
| Receiver enable to output low | tZL | 20 | 50 | ns | CRL = 15pF, S1 closed | 3 | |
| Receiver enable to output high | tZH | 20 | 50 | ns | CRL = 15pF, S2 closed | 3 | |
| Receiver disable time from low | tLZ | 20 | 50 | ns | CRL = 15pF, S1 closed | 3 | |
| Receiver disable time from high | tHZ | 20 | 50 | ns | CRL = 15pF, S2 closed | 3 | |
| Maximum data rate | fMAX | 500 | Kbps | 3 |
CAD (KiCad official)
- Symbol:
HT65LBC184ARZ - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ht65lbc184arz-etched.step/ht65lbc184arz-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht65lbc184arz.step/ht65lbc184arz.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTCSEMI datasheet (6 pp, sha256
0a59e3d7a8cb01eb, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).