NUC140LD2CN Nuvoton Technology Corporation of America, NUC140LD2CN Datasheet - Page 49

• Manufacturer Part Number: NUC140LD2CN
• Description: IC MCU 32BIT 64KB FLASH 48LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC140LD2CN

• 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: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 8K 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

5.2.3
In this chip, the power distribution is divided into three segments.
The outputs of internal voltage regulators, LDO and VDD33, require an external capacitor which
should be located close to the corresponding pin. Analog power (AVDD) should be the same
voltage level of the digital power (VDD). Figure 5-2 shows the power distribution of NuMicro™
NUC140 and Figure 5-3 shows the power distribution of NuMicro™ NUC130.
System Power Distribution
NuMicro™ NUC130/NUC140 Technical Reference Manual
Analog power from AVDD and AVSS provides the power for analog components
operation.
Digital power from VDD and VSS supplies the power to the internal regulator which
provides a fixed 2.5 V power for digital operation and I/O pins.
USB transceiver power from VBUS offers the power for operating the USB
transceiver. (For NuMicro™ NUC140 only)
Figure 5-2 NuMicro™ NUC140 Power Distribution Diagram
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Publication Release Date: June 14, 2011
Revision V2.01