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SN75158DR
Public Made by Adomby adom
Texas Instruments RS-485/RS-422 ICs, SOIC-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
markdownSN75158DR
Texas Instruments · RS-485/RS-422 ICs · SOIC-8
SN75158DR from Texas Instruments, in a SOIC-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 | 1Z | output | Inverting output of the differential driver on channel 1. |
| 2 | 1Y | output | Non-inverting output of the differential driver on channel 1. |
| 3 | 1A | input | Single-ended data input for channel 1. |
| 4 | GND | power_in | Device ground. |
| 5 | 2A | input | Single-ended data input for channel 2. |
| 6 | 2Y | output | Non-inverting output of the differential driver on channel 2. |
| 7 | 2Z | output | Inverting output of the differential driver on channel 2. |
| 8 | VCC | power_in | 5V power supply positive terminal connection, with a recommended supply range of 4.75 V to 5.25 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface ICs |
| 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 | VCC | 4.75 | 5 | 5.25 | V | 4 | |
| High-level input voltage | VIH | 2 | V | 4 | |||
| Low-level input voltage | VIL | 0.8 | V | 4 | |||
| High-level output current | IOH | -40 | mA | 4 | |||
| Low-level output current | IOL | 40 | mA | 4 | |||
| Operating free-air temperature | TA | 0 | 70 | °C | 4 | ||
| Supply voltage | VCC | 7 | V | 4 | |||
| Input voltage range | VI | 5.5 | V | 4 | |||
| Operating free-air temperature range | TJ | 0 | 70 | °C | 4 | ||
| Storage temperature range | Tstg | -65 | 150 | °C | 4 | ||
| Lead temperature | 260 | °C | 1,6 mm (1/16 inch) from case for 10 s | 4 | |||
| Junction-to-ambient thermal resistance (D package) | RθJA | 116.7 | °C/W | D package, 8-pins | 4 | ||
| Junction-to-case (top) thermal resistance (D package) | RθJC(top) | 56.3 | °C/W | D package, 8-pins | 4 | ||
| Junction-to-board thermal resistance (D package) | RθJB | 63.4 | °C/W | D package, 8-pins | 4 | ||
| Junction-to-top characterization parameter (D package) | ψJT | 8.8 | °C/W | D package, 8-pins | 4 | ||
| Junction-to-board characterization parameter (D package) | ψJB | 62.6 | °C/W | D package, 8-pins | 4 | ||
| Differential output voltage | /VOD1/ | 3.5 | V | VCC = MAX, IO = 0 | 5 | ||
| Differential output voltage | /VOD2/ | 3 | V | VCC = MIN, RL = 100Ω, See Figure 6-1 | 5 | ||
| Change in magnitude of differential output voltage | ΔVOD | -0.4 | 0.02 | 0.4 | V | VCC = MIN, RL = 100Ω, See Figure 6-1 | 5 |
| Common-mode output voltage | VOC | 1.8 | 3 | V | VCC = MAX, RL = 100Ω, See Figure 6-1 | 5 | |
| Common-mode output voltage | VOC | 1.5 | 3 | V | VCC = MIN, RL = 100Ω, See Figure 6-1 | 5 | |
| Change in magnitude of common-mode output voltage | ΔVOC | -0.4 | 0.02 | 0.4 | V | VCC = MIN or MAX, RL = 100Ω, See Figure 6-1 | 5 |
| Output current with power off | IO | 0.1 | 100 | μA | VCC = 0, VO = 6V | 5 | |
| Output current with power off | IO | -0.1 | -100 | μA | VCC = 0, VO = -0.25V | 5 | |
| Output current with power off | IO | -100 | 100 | μA | VCC = 0, VO = -0.25 to 6V | 5 | |
| Input current at maximum input voltage | II | 1 | mA | VCC = MAX, VI = 5.5V | 5 | ||
| High-level input current | IIH | 40 | μA | VCC = MAX, VI = 2.4V | 5 | ||
| Low-level input current | IIL | -1 | -1.6 | mA | VCC = MAX, VI = 0.4V | 5 | |
| Short-circuit output current | IOS | -40 | -90 | -150 | mA | VCC = MAX | 5 |
| Supply current (both drivers) | ICC | 37 | 50 | mA | VCC = MAX, TA = 25°C, Inputs grounded, No load | 5 | |
| Input clamp voltage | VIK | -0.9 | -1.5 | V | VCC = MIN, II = -12mA | 5 | |
| High-level output voltage | VOH | 2.4 | 3 | V | VCC = MIN, VIH = 2V, VIL = 0.8V, IOH = -40mA | 5 | |
| Low-level output voltage | VOL | 0.2 | 0.4 | V | VCC = MIN, VIH = 2V, VIL = 0.8V, IOH = 40mA | 5 | |
| Propagation delay time, low- to high-level output | tPLH | 16 | 25 | ns | VCC = 5V, TA = 25°C, Termination A, See Figure 6-2 | 5 | |
| Propagation delay time, low- to high-level output | tPLH | 13 | 20 | ns | VCC = 5V, TA = 25°C, Termination B, See Figure 6-2 | 5 | |
| Propagation delay time, high- to low-level output | tPHL | 10 | 20 | ns | VCC = 5V, TA = 25°C, Termination A, See Figure 6-2 | 5 | |
| Propagation delay time, high- to low-level output | tPHL | 9 | 15 | ns | VCC = 5V, TA = 25°C, Termination B, See Figure 6-2 | 5 | |
| Transition time, low-to-high-level output | tTLH | 4 | 20 | ns | VCC = 5V, TA = 25°C, Termination A, See Figure 6-2 | 5 | |
| Transition time, high- to low-level output | tTHL | 4 | 20 | ns | VCC = 5V, TA = 25°C, Termination A, See Figure 6-2 | 5 | |
| Overshoot factor | 10 | % | VCC = 5V, TA = 25°C, See Figure 6-2, Termination C | 5 |
CAD (KiCad official)
- Symbol:
SN75158DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sn75158dr-etched.step/sn75158dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn75158dr.step/sn75158dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (22 pp, sha256
5f28db5fffebb500, retrieved 2026-11-02, tier: manufacturer) - 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).