# 24CW160-I

**Microchip Tech** · Pre-ordered Chips · SOIC-8

24CW160-I from Microchip Tech, 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 | NC | unconnected | No connect pin with no internal connection to the device. |
| 2 | NC | unconnected | No connect pin with no internal connection to the device. |
| 3 | NC | unconnected | No connect pin with no internal connection to the device. |
| 4 | VSS | power_in | Ground reference pin for the device. |
| 5 | SDA | bidirectional | Open-drain serial data pin that requires a pull-up resistor to VCC (typical 10 kΩ for 100 kHz and 2 kΩ for 400 kHz and 1 MHz), and changes only while SCL is low except for Start and Stop conditions. |
| 6 | SCL | input | Serial clock input used to synchronize data transfer to and from the device. |
| 7 | NC | unconnected | No connect pin with no internal connection to the device. |
| 8 | VCC | power_in | Device power supply pin; the device operates from 1.6V to 5.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| 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 |
|---|---|---|---|---|---|---|---|
| VCC supply voltage | VCC |  |  | 6.5 | V |  | 4 |
| All inputs and outputs w.r.t. VSS |  | -0.6 |  | 6.5 | V |  | 4 |
| Storage temperature |  | -65 |  | 150 | °C |  | 4 |
| Ambient temperature under bias |  | -40 |  | 85 | °C |  | 4 |
| ESD protection on all pins |  | 4 |  |  | kV |  | 4 |
| Supply voltage operating range (Industrial) | VCC | 1.6 |  | 5.5 | V | Industrial (I) grade | 4 |
| Ambient operating temperature (Industrial) | TA | -40 |  | 85 | °C | Industrial (I) grade | 4 |
| Low-level output voltage | VOL |  |  | 0.4 | V | IOL = 2.1 mA, VCC = 3.0V | 4 |
| Low-level output voltage | VOL |  |  | 0.2 | V | IOL = 0.15 mA, VCC = 1.8V | 4 |
| Input leakage current | ILI | -1 |  | 1 | µA | VIN = VSS or VCC | 4 |
| Output leakage current | ILO | -1 |  | 1 | µA | VOUT =VSS or VCC | 4 |
| Internal capacitance (all inputs and outputs) | CINT |  |  | 7 | pF | TAMB = +25°C, FCLK = 1 MHz, VCC = 5.5V (Note 1) | 4 |
| Operating current (read) | ICCREAD |  |  | 0.3 | mA | VCC = 1.8V, FCLK = 400 kHz | 4 |
| Operating current (read) | ICCREAD |  |  | 1 | mA | VCC = 5.5V, FCLK = 1 MHz | 4 |
| Operating current (write) | ICCWRITE |  |  | 1 | mA | VCC = 5.5V, FCLK = 1 MHz | 4 |
| Standby current | ICCS |  |  | 0.5 | µA | SCL = SDA = VCC = 1.8V | 4 |
| Standby current | ICCS |  |  | 1 | µA | SCL = SDA = VCC = 5.5V | 4 |
| Clock frequency | FCLK |  |  | 1000 | kHz | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Clock high time | THIGH | 260 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Clock low time | TLOW | 500 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| SDA and SCL rise time | TR |  |  | 1000 | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| SDA and SCL fall time | TF |  |  | 300 | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Start condition hold time | THD:STA | 260 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Start condition setup time | TSU:STA | 260 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Data input hold time | THD:DAT | 0 |  |  | ns | (Note 2) | 5 |
| Data input setup time | TSU:DAT | 50 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Stop condition setup time | TSU:STO | 260 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Output valid from clock | TAA |  |  | 450 | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Bus free time | TBUF | 500 |  |  | ns | 1.6V ≤ VCC ≤ 5.5V | 5 |
| Input filter spike suppression (SDA and SCL pins) | TSP |  |  | 50 | ns | (Note 3) | 5 |
| Write cycle time (byte or page) | TWC |  |  | 5 | ms |  | 5 |
| Write endurance |  | 1e+06 |  |  | Write Cycles | TA = 25°C, 1.6V ≤ VCC ≤ 5.5V | 5 |
| Data retention |  | 200 |  |  | Years | TA = 55°C | 5 |
| Time required after VCC is stable before the device can accept commands | TPUP | 100 |  |  | µs |  | 6 |
| Power-on reset threshold voltage | VPOR |  |  | 1.5 | V |  | 6 |
| Minimum time at VCC = 0V between power cycles | TPOFF | 1 |  |  | ms |  | 6 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | Package: SN = 8-Lead Plastic Small Outline, Narrow, 3.90 mm Body | 48 |

## CAD (KiCad official)

- Symbol: `24CW160-I`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `24cw160-i-etched.step` / `24cw160-i-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `24cw160-i.step` / `24cw160-i.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/24cw160-i-datasheet.pdf) (50 pp, sha256 `213f52757c654a29`, retrieved 2026-10-28, tier: manufacturer)
- **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/24cw160-i-datasheet.pdf)