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SN75176BDR-JSM
Public Made by Adomby adom
JSMSEMI 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
markdownSN75176BDR-JSM
JSMSEMI · RS-485 / RS-422 ICs · SOP-8
SN75176BDR-JSM from JSMSEMI, 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 ≥ +0.2V or the input is open, low when A-B ≤ -0.2V, high-impedance when RE is high. |
| 2 | RE | input | Receiver output enable, active low; RE low enables RO and RE high places RO in high impedance (input high threshold 2.0V min, low 0.8V max). |
| 3 | DE | input | Driver output enable, active high; DE high enables the driver outputs and DE low places them in high impedance (input high threshold 2.0V min, low 0.8V max). |
| 4 | DI | input | Driver input; with DE high, DI low drives the non-inverting output low and DI high drives it high (input range -0.5V to VCC+0.5V). |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output on the RS-485 bus, with -7V to +12V common-mode range and ±15kV ESD protection. |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output on the RS-485 bus, with -7V to +12V common-mode range and ±15kV ESD protection. |
| 8 | VCC | power_in | Positive supply, single 5V ±5% operation, absolute maximum 12V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| 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) | VCC | 12 | V | 2 | |||
| Control input voltage | -0.5 | V | Maximum printed as (VCC + 0.5V) | 2 | |||
| Driver input voltage (DI) | DI | -0.5 | V | Maximum printed as (VCC + 0.5V) | 2 | ||
| Driver output voltage (A, B) | -8 | 12.5 | V | 2 | |||
| Receiver input voltage (A, B) | -8 | 12.5 | V | 2 | |||
| Receiver output voltage (RO) | RO | -0.5 | V | Maximum printed as (VCC + 0.5V) | 2 | ||
| Storage temperature range | -65 | 150 | °C | 2 | |||
| Lead temperature (soldering) | 260 | °C | soldering, 10 sec | 2 | |||
| Continuous power dissipation, 8-pin SOP | 471 | mW | TA = +70°C; derate 5.88 mW/°C above +70°C | 2 | |||
| Supply voltage tolerance | VCC | -5 | 5 | % | VCC = 5V ±5% (nominal 5 V) | 2 | |
| Operating temperature range | TA | 0 | 70 | °C | TA = TMIN to TMAX | 2 | |
| Common-mode input voltage range | -7 | 12 | V | Stated in features list | 1 | ||
| Differential driver output (no load) | VOD1 | 5 | V | no load | 2 | ||
| Differential driver output (RS-422 load) | VOD2 | 2 | V | R = 50Ω (RS-422) | 2 | ||
| Differential driver output (RS-485 load) | VOD2 | 1.5 | 5 | V | R = 27Ω (RS-485), Figure 1 | 2 | |
| Change in magnitude of driver differential output voltage | ∆VOD | 0.2 | V | R = 27Ω or 50Ω, Figure 1 | 2 | ||
| Driver common-mode output voltage | VOC | 3 | V | R = 27Ω or 50Ω, Figure 1 | 2 | ||
| Change in magnitude of driver common-mode output voltage | ∆VOD | 0.2 | V | R = 27Ω or 50Ω, Figure 1 | 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; VCC = 0V or 5.25V; VIN = 12V | 2 | ||
| Input current (A, B) | IIN2 | -0.8 | mA | DE = 0V; 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 output current at receiver | IOZR | -1 | 1 | µA | 0.4V ≤ VO ≤ 2.4V | 3 | |
| Receiver input resistance | RIN | 12 | kΩ | -7V ≤ VCM ≤ 12V | 3 | ||
| No-load supply current | ICC | 500 | 900 | µA | DE = VCC | 3 | |
| No-load supply current | ICC | 300 | 500 | µA | RE = 0V or VCC, DE = 0V | 3 | |
| Driver short-circuit current, VO high | IOSD1 | 35 | 250 | mA | -7V ≤ VO ≤ 12V (peak current); VO = High | 3 | |
| Driver short-circuit current, VO low | IOSD2 | 35 | 250 | mA | -7V ≤ VO ≤ 12V (peak current); VO = Low | 3 | |
| Receiver short-circuit current | IOSR | 7 | 95 | mA | 0V ≤ VO ≤ VCC | 3 | |
| ESD protection (Human Body Model) | -15 | 15 | kV | A, B, Y and Z pins, Human Body Model | 3 | ||
| Driver input to output propagation delay (tPLH) | tPLH | 10 | 55 | 60 | ns | RDIFF = 54Ω, CL1 = CL2 = 100pF | 3 |
| Driver input to output propagation delay (tPHL) | tPHL | 10 | 55 | 60 | ns | RDIFF = 54Ω, CL1 = CL2 = 100pF | 3 |
| Driver output skew to output | tSKEW | 5 | 10 | ns | RDIFF = 54Ω, 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 | |
| Receiver input to output propagation delay (tPLH) | tPLH | 20 | 60 | 100 | ns | RDIFF = 54Ω, C = C = 100pF | 3 |
| Receiver input to output propagation delay (tPHL) | tPHL | 20 | 60 | 100 | ns | RDIFF = 54Ω, C = C = 100pF | 3 |
| Differential receiver skew | tSKD | 5 | 10 | ns | RDIFF = 54Ω, CL1 = CL2 = 100pF | 3 | |
| Receiver enable to output low | tZL | 30 | 50 | ns | CRL = 15pF, S1 closed | 3 | |
| Receiver enable to output high | tZH | 30 | 50 | ns | CRL = 15pF, S2 closed | 3 | |
| Receiver disable time from low | tLZ | 30 | 50 | ns | CRL = 15pF, S1 closed | 3 | |
| Receiver disable time from high | tHZ | 30 | 50 | ns | CRL = 15pF, S2 closed | 3 | |
| Maximum data rate | fMAX | 2.5 | 10 | 20 | Mbps | 3 |
CAD (KiCad official)
- Symbol:
SN75176BDR-JSM - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
sn75176bdr-jsm-etched.step/sn75176bdr-jsm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn75176bdr-jsm.step/sn75176bdr-jsm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (7 pp, sha256
97a233eeb0388eaa, 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).