component
AT93C66B-SSHM-T
Public Made by Adomby adom
Microchip EEPROM, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 3d ago |
| viewers | 1mo ago |
| at93c66b-sshm-t-etched.fit.json | 3d ago |
| at93c66b-sshm-t-etched.glb | 3d ago |
| at93c66b-sshm-t-etched.step | 3d ago |
| at93c66b-sshm-t.glb | 1mo ago |
| at93c66b-sshm-t.kicad_mod | 1mo ago |
| at93c66b-sshm-t.kicad_sym | 1mo ago |
| at93c66b-sshm-t.lbr | 1mo ago |
| at93c66b-sshm-t.step | 1mo ago |
| package.json | 1mo ago |
| page.json | 12d ago |
| README.md | 18d ago |
AT93C66B-SSHM-T
Microchip · EEPROM · SOIC-8
AT93C66B-SSHM-T from Microchip, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | CS | input | Chip Select. A rising edge on CS starts a valid instruction; holding CS high maintains sequential-read mode. CS low places the device in standby. |
| 2 | SK | input | Serial Data Clock. Synchronizes DI on rising edges and DO transitions. Max frequency 2MHz at 4.5-5.5V, 1MHz at 2.5-5.5V, 250kHz at 1.7-5.5V. |
| 3 | DI | input | Serial Data Input. Receives the start bit, opcode, address, and (for WRITE/WRAL) data. Sampled on rising edge of SK. |
| 4 | DO | tri_state | Serial Data Output. Clocks out read data on falling edges of SK and reports Ready/Busy status during self-timed program/erase cycles. High-impedance when CS is low or the device is idle. Max output current 5.0mA. |
| 5 | GND | power_in | Ground reference (0V) for the device. |
| 6 | ORG | input | Internal Organization select. ORG tied to VCC selects the x16 organization (256 words x 16); ORG tied to GND selects the x8 organization (512 words x 8). Has an internal ~1MOhm pull-up so leaving ORG floating defaults to x16. |
| 7 | NC | unconnected | No connect. Not internally bonded; may be left floating or tied to any potential within the absolute maximum rating. |
| 8 | VCC | power_in | Positive supply, 1.7V to 5.5V. Typical ICC 0.5mA (read/write at 1MHz, 5V), max 2.0mA. Standby current 0.4uA typ @ 1.7V, 10uA typ @ 5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip |
| Package | SOIC-8 |
| Category | Memory |
| Pins | 8 |
Ordering variants
AT93C66B-SSHM-TSSHM-BAT93C66B-SSHM-TAT93C66B-SSHM-TXHM-BAT93C66B-SSHM-TXHM-TAT93C66B-SSHM-TMAHM-TAT93C66B-SSHM-TMEHM-TAT93C66B-SSHM-TCUM-T
CAD (KiCad official)
- Symbol:
AT93C66B-SSHM-T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
at93c66b-sshm-t-etched.step/at93c66b-sshm-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at93c66b-sshm-t.step/at93c66b-sshm-t.glbare the bare package body.
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
at93c66b-sshm-t.step |
122 KB | You want the bare part, or you mark your own boards. |
at93c66b-sshm-t-etched.step |
2.9 MB | You want the part with AT93C66B-SSHM-T already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 708 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip datasheet (21 pp, sha256
821c552202a268a8, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).