# LM74CIM-5

**Texas Instruments** · Temperature Sensors · SOIC-8

LM74CIM-5 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 | SI/O | bidirectional | Slave Input/Output - serial bus bi-directional data line. |
| 2 | SC | input | Slave Clock - serial bus clock input. |
| 3 | NC | unconnected | No connection. |
| 4 | GND | power_in | Power supply ground. |
| 5 | NC | unconnected | No connection. |
| 6 | NC | unconnected | No connection. |
| 7 | CS | input | Chip Select input. |
| 8 | V+ | power_in | Positive supply voltage input, 3.0V to 5.5V for LM74CIM; bypass with 0.1 μF ceramic capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Sensors |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM74CIM-5`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lm74cim-5-etched.step` / `lm74cim-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm74cim-5.step` / `lm74cim-5.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm74) (25 pp, sha256 `f84f18c5c537a176`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).

[Datasheet PDF](docs/lm74cim-5-datasheet.pdf)