component
HT3483ARZ
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
markdownHT3483ARZ
HTCSEMI · RS-485 / RS-422 ICs · SOP-8
HT3483ARZ 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 that goes high when the receiver differential input A-B is at or above +0.2 V and low when it is at or below -0.2 V, with the output voltage limited to UOR of 0 to UCC. |
| 2 | RE | input | Receiver output enable pin, which must be low to enable the receiver and high (with DE low) to place the receiver output in the OFF state for shutdown mode; RE input levels are limited to UIL max 0.8 V and UIH min 2.0 V. |
| 3 | DE | input | Transmitter output enable pin, which must be high to enable the transmitter outputs and low (with RE high) to put the transmitter into the OFF state; DE input levels are limited to UIL max 0.8 V and UIH min 2.0 V. |
| 4 | DI | input | Transmitter input accepting CMOS/TTL-level signals, which are converted to RS-485/422 levels on the A and B outputs; input levels are limited to UIL max 0.8 V and UIH min 2.0 V. |
| 5 | GND | power_in | Common (ground) pin for the device. |
| 6 | A | bidirectional | Receiver/transmitter uncomplemented I/O pin for the RS-485/422 bus, with bus input voltage range URIN of -7 V to 12 V in recommended operation and absolute limits of -7.5 V to 12.5 V. |
| 7 | B | bidirectional | Receiver/transmitter complemented I/O pin for the RS-485/422 bus, with bus input voltage range URIN of -7 V to 12 V in recommended operation and absolute limits of -7.5 V to 12.5 V. |
| 8 | VCC | power_in | Supply voltage pin, recommended at 3.0 V to 3.6 V with an absolute maximum of 7.0 V. |
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 (absolute maximum) | UCC | 7 | V | 4 | |||
| DI, DE, RE pins high level input voltage | UIH | 2 | V | 4 | |||
| Voltage applied to transmitter output (recommended) | UOD | -7 | 12 | V | 4 | ||
| Receiver input voltage (recommended) | URIN | -7 | 12 | V | 4 | ||
| Voltage applied to receiver output (recommended) | UOR | 0 | V | 4 | |||
| Ambient operating temperature range | TA | -40 | 85 | °C | 1 | ||
| Low level input leakage current | IILL | -2 | uA | UDE=UDI=URE=0V; UCC=3.6V; TA=-40 to 85°C | 5 | ||
| High level input leakage current | IILH | 2 | uA | UDE=UDI=URE=UCC; UCC=3.6V; TA=-40 to 85°C | 5 | ||
| Shutdown mode supply current | ISHDN | 1 | uA | UDE=0; URE=UCC; UDI=0V or UCC; UCC=3.6V; TA=-40 to 85°C | 5 | ||
| Time of transition to low power consumption mode | tSHDN | 80 | 300 | ns | UCC=3.3V; TA=25±10°C | 5 | |
| Receiver input resistance | RIN | 12 | kΩ | -7 V ≤ URIN ≤ 12 V; TA=25±10°C and -40 to 85°C | 5 | ||
| Input current | IIN2 | 1 | mA | URIN=12V; UDE=0V; UCC=3.6V; TA=-40 to 85°C | 5 | ||
| Low level output current for OFF state | IOZLR | -1 | uA | UOR=0V; UCC=3.6V; TA=-40 to 85°C | 5 | ||
| High level output current for OFF state | IOZHR | 1 | uA | UOR=UCC; UCC=3.6V; TA=-40 to 85°C | 5 | ||
| High level short circuit output current | IOSHR | 9 | 50 | mA | UIH=3.0V; UIL=0V; UOR=3.6V; UCC=3.6V; TA=25±10°C | 5 | |
| High level short circuit output current | IOSHR | 8 | 60 | mA | UIH=3.0V; UIL=0V; UOR=3.6V; UCC=3.6V; TA=-40 to 85°C | 5 | |
| Low level short circuit output current | IOSLR | -50 | -9 | mA | UIH=3.0V; UIL=0V; UOR=0V; UCC=3.6V; TA=25±10°C | 5 | |
| Low level short circuit output current | IOSLR | -60 | -8 | mA | UIH=3.0V; UIL=0V; UOR=0V; UCC=3.6V; TA=-40 to 85°C | 5 |
CAD (KiCad official)
- Symbol:
HT3483ARZ - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ht3483arz-etched.step/ht3483arz-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht3483arz.step/ht3483arz.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTCSEMI datasheet (7 pp, sha256
6572ac9aefb93091, retrieved 2026-10-19, tier: lcsc) - 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).