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MCU for a battery device

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Sleep current and wake sources matter more than MHz. Look for a stop/standby number you believe, enough flash for your stack, and a package you can hand-assemble.

Starting part numbers

From the local map. These are examples, not the live result list.

  • MSP430FR2433

    Texas Instruments

    FRAM, tiny, when the job is a sensor node.

  • nRF52840-QIAA

    Nordic Semiconductor

    If you also need BLE; excellent sleep story.

  • STM32L432KCU6

    STMicroelectronics

    Cortex-M4, usable stop current, UFQFPN-32.

Category map

Nexar / Octopart

Microcontrollers

id: (blank) · best-effort

DigiKey

Microcontrollers

id: (blank) · best-effort

Category ids are blank until someone verifies them. Live lookup searches the example MPNs and these labels instead.

Keywords lowpowerSTM32LnRF52MSP430coincell

Live parts

On-demand from Nexar and/or DigiKey. Nothing here is a catalog Byuse owns. Specs appear only if the API returned them.

No distributor key is set. Browsing still works. To see live parts, add one of these pairs to .env.local and restart the dev server:

  • NEXAR_CLIENT_ID
  • NEXAR_CLIENT_SECRET
  • DIGIKEY_CLIENT_ID
  • DIGIKEY_CLIENT_SECRET

Nexar needs NEXAR_CLIENT_ID and NEXAR_CLIENT_SECRET. DigiKey needs DIGIKEY_CLIENT_ID and DIGIKEY_CLIENT_SECRET.