MM32W040PF
Compact BLE 5.0 MCU with 32KB Flash, small QFN32 package for space-constrained wireless applications
Product Overview
Description
The MM32W040PF is a compact wireless microcontroller featuring ARM Cortex-M0+ core with integrated Bluetooth Low Energy 5.0 radio in a small QFN32 package.
This MCU includes 32KB Flash memory and 4KB SRAM, providing sufficient resources for simple BLE beacon and sensor applications. The small package size is ideal for space-constrained designs.
The device achieves ultra-low power consumption with sub-microamp standby current. It operates from 1.8V to 3.6V and supports industrial temperature range.
Product Series
MM
Primary Application
BLE beacons
Key Features
- ARM Cortex-M0+ up to 48MHz
- Integrated BLE 5.0 radio
- 32KB Flash
- 4KB SRAM
- Small QFN-32 package
- Ultra-low power consumption
- 12-bit ADC
Specifications
| Core | ARM Cortex-M0+ |
|---|---|
| Frequency | 48 MHz |
| Flash | 32 KB |
| RAM | 4 KB |
| BLE Version | 5.0 |
| TX Power | +4 dBm max |
| RX Sensitivity | -95 dBm |
| Package | QFN-32 |
Applications
BLE beacons
Electronic system design
Asset tags
Electronic system design
Simple sensors
Sensor signal conditioning
Wearable accessories
Electronic system design
Space-constrained IoT
Electronic system design
FAE Expert Insights
"The MM32W040PF is perfect for space-constrained BLE applications where cost and size are critical. The QFN32 package is significantly smaller than the QFN48 used in MM32W073, saving valuable PCB space. I recommend this for BLE beacons, asset tags, and simple sensor nodes where 32KB Flash is sufficient. The RF performance is slightly reduced compared to MM32W073 (+4dBm vs +8dBm TX power), but still adequate for most short-range applications. For a BLE beacon project, the small size allowed fitting the entire circuit in a compact housing."
Compact QFN32 BLE MCU for space-constrained applications
— Lisa Wang, BeiLuo
Frequently Asked Questions
What is the range difference between MM32W040 and MM32W073?
The MM32W040PF has +4dBm maximum TX power compared to +8dBm on MM32W073. This 4dB difference translates to approximately 40% less range in free space. In practical terms, expect 15-20 meters indoor range for MM32W040 versus 25-30 meters for MM32W073. For beacon and short-range sensor applications, this range is usually sufficient.
Use MM32W040 for short-range compact designs; use MM32W073 for longer range requirements.