component
23K640-I
Public Made by Adomby adom
Microchip Tech SRAM, SOIC-8. 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
markdown23K640-I
Microchip Tech · SRAM · SOIC-8
23K640-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 | CS | input | Chip Select input: a low level selects the device, a high level deselects it and forces Standby mode. |
| 2 | SO | tri_state | Serial Data Output: data is shifted out after the falling edge of SCK, and the pin goes high-impedance when the device is deselected or HOLD is low. |
| 3 | NC | unconnected | No connect pin shown on the PDIP/SOIC/TSSOP package diagram; the datasheet's pin function table does not list it. |
| 4 | VSS | power_in | Ground. |
| 5 | SI | input | Serial Data Input: receives instructions, addresses and data, latched on the rising edge of SCK. |
| 6 | SCK | input | Serial Clock input (max 20 MHz) that synchronizes communication, with SI latched on the rising edge and SO updated after the falling edge. |
| 7 | HOLD | input | Hold input: pulling it low while SCK is low pauses serial communication without resetting the sequence, and it must be held high when not used. |
| 8 | VCC | power_in | Supply voltage, 2.7V to 3.6V for the 23K640 (absolute maximum 4.5V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | Memory |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
23K640-I - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
23k640-i-etched.step/23k640-i-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);23k640-i.step/23k640-i.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (28 pp, sha256
6d7c5906b6bb39c0, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).