# LM95221CIMM

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

LM95221CIMM from Texas Instruments, in a VSSOP-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 | D1+ | passive | Diode current source connected to the anode of remote diode 1; a 2.2 nF bypass capacitor between D1+ and D1- is recommended, and the pin should be grounded if the thermal diode is not used. |
| 2 | D1- | passive | Diode return current sink connected to the cathode of remote diode 1; a 2.2 nF capacitor is recommended between D1+ and D1-, and the pin should be grounded if the thermal diode is not used. |
| 3 | D2+ | passive | Diode current source connected to the anode of remote diode 2; a 2.2 nF bypass capacitor between D2+ and D2- is recommended, and the pin should be grounded if the thermal diode is not used. |
| 4 | D2- | passive | Diode return current sink connected to the cathode of remote diode 2; a 2.2 nF capacitor is recommended between D2+ and D2-, and the pin should be grounded if the thermal diode is not used. |
| 5 | GND | power_in | Power supply ground. |
| 6 | VDD | power_in | Positive supply voltage input from 3.0 V to 3.6 V, bypassed with a 0.1 µF capacitor in parallel with 100 pF placed as close as possible to the pin, with noise kept below 200 mVp-p. |
| 7 | SMBDAT | bidirectional | SMBus bidirectional data line to and from the controller, implemented as an open-drain output that may require an external pull-up resistor. |
| 8 | SMBCLK | input | SMBus clock input from the controller that may require an external pull-up resistor. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LM95221CIMM`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `lm95221cimm-etched.step` / `lm95221cimm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm95221cimm.step` / `lm95221cimm.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/lm95221) (26 pp, sha256 `48ca617f01a3a377`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/lm95221cimm-datasheet.pdf)