Data Sheet

NUC123
May 3, 2017 Page 27 of 99 Rev.2.04
NUC123 SERIES DATASHEET
5 BLOCK DIAGRAM
NuMicro
®
NUC123 Block Diagram 5.1
ARM
Cortex-M0
72MHz
Memory
PDMA
APROM & DataFlash
36/68 KB
LDROM
4 KB
SRAM
12/20 KB
Timer/PWM Analog Interface
32-bit Timer x 4
Watchdog Timer
PWM/Capture
Timer x 4
Windowed
Watchdog Timer
10-bit ADC x 8
Clock Control
LDO
Power On Reset
LVR
Brownout
Detection
High Speed
Oscillator
22.1184 MHz
High Speed
Crystal
4 ~ 24 MHz
Low Speed
Oscillator
10 KHz
PLL
Connectivity
UART x 2
SPI x 3
I
2
C x 2
PS/2
I
2
S
USB
I/O Ports
General Purpose
I/O
Reset Pin
External Interrupt
AHB/APB Bus
Figure 5-1 NuMicro
®
NUC123 Block Diagram