ATSHA204A-SSHCZ-T

@@ -0,0 +1,61 @@+# ATSHA204A-SSHCZ-T++**Microchip Tech** · Security Verification / Encryption ICs · SOIC-8++ATSHA204A-SSHCZ-T from Microchip Tech, 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 | NC | unconnected | No connect. Not internally bonded; may be left floating or tied to any potential. |+| 2 | NC | unconnected | No connect. Not internally bonded; may be left floating or tied to any potential. |+| 3 | NC | unconnected | No connect. Not internally bonded; may be left floating or tied to any potential. |+| 4 | GND | power_in | Ground reference (0 V) for the device. |+| 5 | SDA | bidirectional | Serial Data. On this -CZ (Single-Wire Interface) variant, SDA is the sole open-drain bidirectional data line carrying the UART-compatible high-speed single-wire protocol between host and device. Requires an external pull-up resistor. Communications voltage range 1.8 V to 5.5 V. |+| 6 | SCL | unconnected | Serial Clock Input pin on the physical SOIC-8 package. On the -CZ (Single-Wire Interface) variant this pin is not used by the SWI protocol and can be left unconnected. |+| 7 | NC | unconnected | No connect. Not internally bonded; may be left floating or tied to any potential. |+| 8 | VCC | power_in | Power supply input. Operating supply voltage 2.0 V to 5.5 V. Sleep current <150 nA. Bypass with a local ceramic decoupling capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Microchip Tech |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `ATSHA204A-SSHCZ-T`+- `ATSHA204A-SSHCZ-B`+- `ATSHA204A-SSHCZ-TSSHDA-T`+- `ATSHA204A-SSHCZ-TSSHDA-B`+- `ATSHA204A-SSHCZ-TXHCZ-T`+- `ATSHA204A-SSHCZ-TXHDA-T`+- `ATSHA204A-SSHCZ-TMAHCZ-T`+- `ATSHA204A-SSHCZ-TMAHDA-T`+- `ATSHA204A-SSHCZ-TMAHCZ-S`+- `ATSHA204A-SSHCZ-TMAHDA-S`+- `ATSHA204A-SSHCZ-TSTUCZ-T`+- `ATSHA204A-SSHCZ-TRBHCZ-T`+- `ATSHA204A-SSHCZ-TRBHCZ-B`++## CAD (KiCad official)++- Symbol: `ATSHA204A-SSHCZ-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 Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588897224952041472) (93 pp, sha256 `55dc3a76306074aa`, retrieved 2026-08-17, tier: lcsc)+- **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/atsha204a-sshcz-t-datasheet.pdf)

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