component
ISO7740FDWR
Public Made by Adomby adom
Texas Instruments Digital Isolators, SOIC-16-300mil. 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
markdownISO7740FDWR
Texas Instruments · Digital Isolators · SOIC-16-300mil
ISO7740FDWR from Texas Instruments, in a SOIC-16-300mil. 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 | VCC1 | power_in | Power supply voltage for input side; range 2.25V to 5.5V. |
| 2 | GND1 | power_in | Ground connection for VCC1 and input side signal reference. |
| 3 | INA | input | Input channel A; logic input signal to isolate across the barrier for channel A. |
| 4 | INB | input | Input channel B; logic input signal to isolate across the barrier for channel B. |
| 5 | INC | input | Input channel C; logic input signal to isolate across the barrier for channel C. |
| 6 | IND | input | Input channel D; logic input signal to isolate across the barrier for channel D. |
| 7 | NC | unconnected | Not connected; this pin is not used for ISO7740 variant. |
| 8 | GND1 | power_in | Ground connection for VCC1 and input side signal reference. |
| 9 | GND2 | power_in | Ground connection for VCC2 and output side signal reference. |
| 10 | EN2 | input | Output enable 2; when high or open, side 2 outputs are enabled; when low, outputs are in high-impedance state. |
| 11 | OUTD | output | Output channel D; isolated logic output from input channel D; defaults to low when input power is lost (F variant). |
| 12 | OUTC | output | Output channel C; isolated logic output from input channel C; defaults to low when input power is lost (F variant). |
| 13 | OUTB | output | Output channel B; isolated logic output from input channel B; defaults to low when input power is lost (F variant). |
| 14 | OUTA | output | Output channel A; isolated logic output from input channel A; defaults to low when input power is lost (F variant). |
| 15 | GND2 | power_in | Ground connection for VCC2 and output side signal reference. |
| 16 | VCC2 | power_in | Power supply voltage for output side; range 2.25V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO7740FDWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
iso7740fdwr-etched.step/iso7740fdwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7740fdwr.step/iso7740fdwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (51 pp, sha256
d6ac6b90609c88c4, retrieved 2026-09-23, 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: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).