component
max3088eim
Public Unreviewedby Ray
HGSEMI RS-485/RS-422 ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
README
markdownMAX3088EIM
HGSEMI · RS-485/RS-422 ICs · SOP-8
MAX3088EIM from HGSEMI, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RO | output | Receiver output. When RE is low, RO = 1 if (A-B) ≥ -50mV and RO = 0 if (A-B) ≤ -200mV. High-impedance when RE is high; enters shutdown when RE=1 and DE=0. VOH ≥ VCC-0.6V at IO=-4mA; VOL ≤ 0.4V at IO=4mA. |
| 2 | RE | input | Receiver output enable, active low. RO is enabled when RE is low and high-impedance when RE is high. Driving RE high with DE low places the device in low-power shutdown mode. Uses a hot-swap input structure that keeps RE high during power-up transients. VIH ≥ 2V, VIL ≤ 0.8V. |
| 3 | DE | input | Driver output enable, active high. Driver A/B outputs are enabled when DE is high and high-impedance when DE is low. Driving RE high with DE low places the device in low-power shutdown mode. Uses a hot-swap input structure that keeps DE low during power-up transients. VIH ≥ 2V, VIL ≤ 0.8V. |
| 4 | DI | input | Driver input. When DE is high, a low on DI forces A low and B high; a high on DI forces A high and B low. VIH ≥ 2V, VIL ≤ 0.8V, IIN ±1µA. |
| 5 | GND | power_in | Ground reference for supply and all logic-level signals. |
| 6 | A | bidirectional | Non-inverting receiver input AND non-inverting driver output (shared half-duplex bus line). Withstands -7V to +12V bus common-mode; ±16kV IEC 61000-4-2 ESD protected. Receiver differential threshold VTH is between -200mV and -50mV. |
| 7 | B | bidirectional | Inverting receiver input AND inverting driver output (shared half-duplex bus line). Withstands -7V to +12V bus common-mode; ±16kV IEC 61000-4-2 ESD protected. |
| 8 | VCC | power_in | Positive supply, 4.5V ≤ VCC ≤ 5.5V. Bypass to GND with a 0.1µF ceramic capacitor. Typical ICC = 530µA (no-load, driver enabled); shutdown current 0.05µA typ. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOP-8 |
| Category | Comm/UART |
| Pins | 8 |
Ordering variants
MAX3088EIMMAX3088ECM/TRMAX3088EIM/TRMAX3088EIMMAX3088ECNMAX3088EIMMAX3088EINMAX3088EIMMAX3088ECMM/TRMAX3088EIMM/TRMAX3088EIMMAX3088ECM8/TRMAX3088EIMMAX3088EM8/TR
CAD (KiCad official)
- Symbol:
MAX3088EIM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (None pp, sha256
a74bdc964ee9cb50, retrieved 2026-08-17, 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:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).