component
AT93C66B-SSHM-T
Public Made by Adomby adom
Microchip EEPROM, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# 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-B`+- `AT93C66B-SSHM-T`+- `AT93C66B-SSHM-TXHM-B`+- `AT93C66B-SSHM-TXHM-T`+- `AT93C66B-SSHM-TMAHM-T`+- `AT93C66B-SSHM-TMEHM-T`+- `AT93C66B-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)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Microchip datasheet](docs/at93c66b-sshm-t-datasheet.pdf) (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).++[Datasheet PDF](docs/at93c66b-sshm-t-datasheet.pdf)
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