32-bit ARM CortexTM-M0 - NuMicro® Family

NUC126 USB Series

The enhanced series of NuMicro Family 32-bit microcontrollers based on the ARM Cortex-M0 core, equipped with rich peripherals and crystal-less USB interface.
All ICs are RoHS compliant.

* Status: P - mass production, S - samples, UD - under development, N - not recommended for new design.

Chip Description Application Flash  SRAM  Data Flash Loader Flash Programm.
methods		 Clock
  frequency  		 Supply
  voltage  
[V]		 Operating
temperature
[°C]		    Package    Status *
NUC126LE4AE
 (2233 kB)
  • operating frequency up to 72 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC
  • up to 35 I/Os
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • 32 interrupts
  • interfaces: 3 x USCI (Universal Serial Control Interface which can be set to UART, SPI or I2C), 3 x UART, 2 x SPI, crystal-less USB 2.0 FS, 2 x I2C, 2 x I2S, 2 x SC
  • 10-channel 16-bit PWM, clock frequency up to 144 MHz
  • 5 x PDMA
  • 9-channel 12-bit ADC
  • 2 x analog comparator
  • CRC
  • LDO regulator
  • 4-level BOD with Reset function
 128 KB 20 KB configurable 4 KB ISP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
48 MHz
10 kHz
22.1184 MHz (1% accuracy)		 2.5 – 5.5 -40 – +105 LQFP-48
(7x7 mm)		 P
NUC126LG4AE
 (2233 kB)
  • operating frequency up to 72 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC
  • up to 35 I/Os
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • 32 interrupts
  • interfaces: 3 x USCI (Universal Serial Control Interface which can be set to UART, SPI or I2C), 3 x UART, 2 x SPI, crystal-less USB 2.0 FS, 2 x I2C, 2 x I2S, 2 x SC
  • 10-channel 16-bit PWM, clock frequency up to 144 MHz
  • 5 x PDMA
  • 9-channel 12-bit ADC
  • 2 x analog comparator
  • CRC
  • LDO regulator
  • 4-level BOD with Reset function
 256 KB 20 KB configurable 4 KB ISP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
48 MHz
10 kHz
22.1184 MHz (1% accuracy)		 2.5 – 5.5 -40 – +105 LQFP-48
(7x7 mm)		 P
NUC126NE4AE
 (2233 kB)
  • operating frequency up to 72 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC
  • up to 35 I/Os
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • 32 interrupts
  • interfaces: 3 x USCI (Universal Serial Control Interface which can be set to UART, SPI or I2C), 3 x UART, 2 x SPI, crystal-less USB 2.0 FS, 2 x I2C, 2 x I2S, 2 x SC
  • 10-channel 16-bit PWM, clock frequency up to 144 MHz
  • 5 x PDMA
  • 9-channel 12-bit ADC
  • 2 x analog comparator
  • CRC
  • LDO regulator
  • 4-level BOD with Reset function
 128 KB 20 KB configurable 4 KB ISP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
48 MHz
10 kHz
22.1184 MHz (1% accuracy)		 2.5 – 5.5 -40 – +105 QFP-48
(7x7 mm)		 P
NUC126SE4AE
 (2233 kB)
  • operating frequency up to 72 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC
  • up to 49 I/Os
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • 32 interrupts
  • interfaces: 3 x USCI (Universal Serial Control Interface which can be set to UART, SPI or I2C), UART, 2 x SPI, crystal-less USB 2.0 FS, 2 x I2C, 2 x I2S, 2 x SC
  • 12-channel 16-bit PWM, clock frequency up to 144 MHz
  • 5 x PDMA
  • 15-channel 12-bit ADC
  • 2 x analog comparator
  • CRC
  • LDO regulator
  • 4-level BOD with Reset function
 128 KB 20 KB configurable 4 KB ISP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
48 MHz
10 kHz
22.1184 MHz (1% accuracy)		 2.5 – 5.5 -40 – +105 LQFP-64
(7x7 mm)		 P
NUC126SG4AE
 (2233 kB)
  • operating frequency up to 72 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC
  • up to 49 I/Os
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • 32 interrupts
  • interfaces: 3 x USCI (Universal Serial Control Interface which can be set to UART, SPI or I2C), 3 x UART, 2 x SPI, crystal-less USB 2.0 FS, 2 x I2C, 2 x I2S, 2 x SC
  • 12-channel 16-bit PWM, clock frequency up to 144 MHz
  • 5 x PDMA
  • 15-channel 12-bit ADC
  • 2 x analog comparator
  • CRC
  • LDO regulator
  • 4-level BOD with Reset function
 256 KB 20 KB configurable 4 KB ISP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
48 MHz
10 kHz
22.1184 MHz (1% accuracy)		 2.5 – 5.5 -40 – +105 LQFP-64
(7x7 mm)		 P
NUC126VG4AE
 (2233 kB)
  • operating frequency up to 72 MHz
  • programmable system clock source
  • 2 external crystal oscillators and 3 internal RC oscillators
  • PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC
  • up to 81 I/Os
  • 4 x 32-bit timers
  • Watchdog
  • RTC
  • 32 interrupts
  • interfaces: 3 x USCI (Universal Serial Control Interface which can be set to UART, SPI or I2C), 3 x UART, 2 x SPI, crystal-less USB 2.0 FS, 2 x I2C, 2 x I2S, 2 x SC
  • 12-channel 16-bit PWM, clock frequency up to 144 MHz
  • 5 x PDMA
  • 20-channel 12-bit ADC
  • 2 x analog comparator
  • CRC
  • LDO regulator
  • 4-level BOD with Reset function
 256 KB 20 KB configurable 4 KB ISP
ICP		 Ext. crystal:
4 - 24 MHz
32.768 kHz

Int. RC:
48 MHz
10 kHz
22.1184 MHz (1% accuracy)		 2.5 – 5.5 -40 – +105 LQFP-100
(14x14 mm)		 P