NUC140LE3CN Nuvoton Technology Corporation of America, NUC140LE3CN Datasheet - Page 129

• Manufacturer Part Number: NUC140LE3CN
• Description: IC MCU 32BIT 128KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC140LE3CN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 31
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.3.4
5.3.5
The peripherals clock had different clock source switch setting which depends on the different
peripheral. Please refer the CLKSEL1 and CLKSEL2 register description in 5.3.7.
When chip enters into power down mode, system clocks, some clock sources, and some
peripheral clocks will be disabled. Some clock sources and peripherals clock are still active in
power down mode.
For theses clocks which still keep active list below:
Peripherals Clock
Power Down Mode Clock
NuMicro™ NUC130/NUC140 Technical Reference Manual
Clock Generator
Peripherals Clock (When these IP adopt external 32.768 kHz low speed crystal or 10
kHz low speed oscillator as clock source)
Internal 10 kHz low speed oscillator clock
External 32.768 kHz low speed crystal clock
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Publication Release Date: June 14, 2011
Revision V2.01