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Product attributes Property Value
Manufacturer Nuvoton Technology Corporation
Product Series NuMicro Mini57™
Packaging | Tray
Core Processor ARM® Cortex®-M0
Core Size 32-Bit Single-Core
Speed 48MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, I2S, POR, PWM, WDT
Number of I/O 18
Program Memory Size 29.5KB (29.5k x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 2.1V ~ 5.5V
Data Converters A/D 8x12b
Oscillator Type External
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package 20-TSSOP
Package / Case 20-TSSOP (0.173", 4.40mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MINI57FDE is a 32-bit ARM Cortex-M0 microcontroller from Nuvoton, running at 48MHz. It provides 29.5KB flash and 4KB SRAM, with an operating range of 2.1V to 5.5V. Packaged in a compact 20-TSSOP, it integrates I2S, PWM, and multiple serial interfaces, ideal for space-constrained audio, sensor, and control applications.

  • Compact package: 20-TSSOP saves PCB space for miniaturized designs.
  • Integrated I2S: Enables direct digital audio interface without external codec logic.
  • Wide voltage range: 2.1V-5.5V supports both 3.3V and 5V systems.
  • High temperature tolerance: -40°C to 105°C for demanding environments.

Compact Audio Players

The I2S interface and 48MHz Cortex-M0 enable playback of compressed audio from SD cards in small, battery-powered devices.

Sensor Fusion Nodes

With 29.5KB flash, it can combine data from multiple sensors (temperature, humidity, motion) and send aggregated results via UART.

Portable Medical Monitors

The small TSSOP package and low power consumption make it suitable for wearable pulse oximeters or glucose monitors.

Smart Home Controllers

It can manage IR blasters, temperature sensors, and relay controls in a thermostat, with 5V operation simplifying power supply design.

Automotive Accessories

Operating up to 105°C, it can be used in car interior lighting control or window lift modules, with PWM for smooth operation.

Industrial Timers/Counters

Its WDT and POR ensure reliable operation in industrial timers used for process control, with the 20-pin package fitting in DIN-rail housings.

Q: What is the core of the MINI57FDE?
A: It uses an ARM Cortex-M0 core at 48MHz.
Q: What is the flash size?
A: It has 29.5KB flash memory.
Q: What is the package type?
A: It is available in a 20-TSSOP package.
Q: What is the voltage range?
A: It operates from 2.1V to 5.5V.
Q: Does it support I2S?
A: Yes, it includes an I2S interface for audio applications.
Base Product Number : MINI57FD
29.5KB Flash 48MHz 4KB SRAM 5V ARM Cortex-M0 audio compact I2S MINI57FDE Nuvoton sensor TSSOP-20
Q: What is the core of the MINI57FDE?
A: It uses an ARM Cortex-M0 core at 48MHz.
Q: What is the flash size?
A: It has 29.5KB flash memory.
Q: What is the package type?
A: It is available in a 20-TSSOP package.
Q: What is the voltage range?
A: It operates from 2.1V to 5.5V.
Q: Does it support I2S?
A: Yes, it includes an I2S interface for audio applications.