NUC120RD2BN Nuvoton Technology Corporation of America, NUC120RD2BN Datasheet - Page 43
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NUC120RD2BN
Manufacturer Part Number
NUC120RD2BN
Description
IC MCU 32BIT 64KB FLASH 64LQFP
Manufacturer
Nuvoton Technology Corporation of America
Series
NuMicro™r
Specifications of NUC120RD2BN
Core Processor
ARM Cortex-M0
Core Size
32-Bit
Speed
50MHz
Connectivity
EBI/EMI, I²C, IrDA, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, LVD, POR, PS2, PWM, WDT
Number Of I /o
45
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
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
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NUC120RD2BN
Manufacturer:
NuvoTon
Quantity:
1 550
Company:
Part Number:
NUC120RD2BN
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
10 000
Part Number:
NUC120RD2BN
Manufacturer:
NUVOTON
Quantity:
20 000
5.3.3
The system clock has 5 clock sources which were generated from clock generator block. The
clock source switch depends on the register HCLK_S (CLKSEL0[2:0]). The block diagram is
showed in Figure 5-5.
The clock source of SysTick in Cortex-M0 core can use CPU clock or external clock
(SYST_CSR[2]). If using external clock, the SysTick clock (STCLK) has 5 clock sources. The
clock source switch depends on the setting of the register STCLK_S (CLKSEL0[5:3]. The block
diagram is showed in Figure 5-6.
System Clock & SysTick Clock
22.1184 MHz
32.768 kHz
4~24 MHz
4~24 MHz
HCLK
Figure 5-6 SysTick Clock Control Block Diagram
Figure 5-5 System Clock Block Diagram
1/2
1/2
1/2
- 43 -
1xx
011
010
001
000
NuMicro™ NUC120 Data Sheet
STCLK_S (CLKSEL0[5:3])
Publication Release Date: Nov 11, 2010
STCLK
Revision V2.00