MAX31856MUD+T

@@ -0,0 +1,55 @@+# MAX31856MUD+T++**Analog Devices Inc Maxim Integrated** · ADCs/DACs - Special Purpose · TSSOP-14++MAX31856MUD+T from Analog Devices Inc Maxim Integrated, in a TSSOP-14. 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 | AGND | power_in | Analog ground. Return for the analog supply (AVDD) and the analog front-end referenced to this pin. |+| 2 | BIAS | output | Bias voltage source, nominally 0.735V with ~2kΩ output resistance. Provides common-mode bias for the thermocouple inputs; floats when no conversions are taking place. |+| 3 | T- | input | Thermocouple negative input. Connects to the negative wire of the thermocouple; internally protected to ±45V. |+| 4 | T+ | input | Thermocouple positive input. Connects to the positive wire of the thermocouple; internally protected to ±45V. |+| 5 | AVDD | power_in | Analog positive supply, 3.0V to 3.6V (3.3V nominal). Bypass with a 0.1µF capacitor to AGND. Must be within ±100mV of DVDD. |+| 6 | DNC | unconnected | Do Not Connect. Leave this pin floating; do not tie to any signal or supply rail. |+| 7 | DRDY | output | Active-low data ready output. Asserts low when a new conversion result is available in the Linearized Thermocouple Temperature register; returns high after a read of that register (or the Cold-Junction register when enabled). |+| 8 | DVDD | power_in | Digital positive supply, 3.0V to 3.6V (3.3V nominal). Bypass with a 0.1µF capacitor to DGND. Must be within ±100mV of AVDD. |+| 9 | CS | input | Active-low SPI chip select. Drive low to initiate a SPI transfer and enable the serial interface; drive high to terminate the transfer and place SDO in high impedance. |+| 10 | SCK | input | SPI serial clock input, up to 5MHz. Either polarity (CPOL=0 or 1) is supported; CPHA must be set to 1. |+| 11 | SDO | tri_state | SPI serial data output (MISO). Shifts data out MSB-first on the SCLK strobe edge when CS is low; high impedance when CS is high. |+| 12 | SDI | input | SPI serial data input (MOSI). Address and write-data bytes are latched MSB-first on the SCLK strobe edge while CS is low. |+| 13 | FAULT | output | Active-low fault output. Asserts when a cable open-circuit, thermocouple over/undervoltage, or a temperature threshold (linearized thermocouple or cold-junction) fault is detected, unless masked by the fault mask register. |+| 14 | DGND | power_in | Digital ground. Return for the digital supply (DVDD) and the SPI/logic pins. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Analog Devices Inc Maxim Integrated |+| Package | TSSOP-14 |+| Category | Data Acquisition |+| Pins | 14 |++## Ordering variants++Same part, different packaging or reel option.++- `MAX31856MUD+T`++## CAD (KiCad official)++- Symbol: `MAX31856MUD+T`+- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`+- 3D model: TSSOP-14 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Analog Devices Inc Maxim Integrated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588942369190793216) (30 pp, sha256 `385702a94433d75e`, 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/max31856mud-t-datasheet.pdf)

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