# 93LC46B

**Microchip Tech** · EEPROM · SOIC-8

93LC46B 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 | CS | input | Chip Select: a high level selects the device and a low level deselects it into standby, and CS must be low for 250 ns minimum (TCSL) between consecutive instructions. |
| 2 | CLK | input | Serial Data Clock that synchronizes communication, clocking opcode, address and data in (and data out) on the positive edge; it is a don't-care when CS is low. |
| 3 | DI | input | Serial Data Input used to clock in the START bit, opcode, address and data synchronously with CLK. |
| 4 | DO | tri_state | Serial Data Output that outputs data in READ mode (TPD after the CLK positive edge), provides READY/BUSY status during ERASE/WRITE, and is HIGH-Z when status is not available. |
| 5 | Vss | power_in | Ground. |
| 6 | NC | unconnected | No Connect. |
| 7 | NC | unconnected | No Connect. |
| 8 | Vcc | power_in | Power supply, +2.5V to +6.0V operating range with an absolute maximum of 7.0V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | Memory |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `93LC46B`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `93lc46b-etched.step` / `93lc46b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `93lc46b.step` / `93lc46b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/93lc46b-datasheet.pdf) (12 pp, sha256 `d3dc4146cf5515c3`, retrieved 2026-10-28, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/93lc46b-datasheet.pdf)