NUC123SD4AN0

The NuMicro™ NUC123 series embedded with  the ARM® Cortex™-M0 core runs up to 72 MHz with 36K / 68K bytes Flash  program memory, 12K/20K bytes SRAM , and 4K bytes Flash loader memory for In System Program ( ISP ) . The NUC123 series also integrates Timers, Watchdog Timer ( WDT ) , Window Watchdog Timer ( WWDT ) , PDMA with C RC calculation unit, UART , SPI , I²C , I²S, PWM Timer, GPIO, PS/2, USB 2.0 FS Device, 10-bit ADC , Low Voltage Reset Controller and Brown-out Detector.

Target Application:

Consumer Electronic, USB Keyboard, Touch System, etc.

Key Features:

•Core
 
-Cortex™-M0 processor
 
-Max frequency of 72 MHz
 
-Operating voltage: 2.5V to 5.5V
 
-Temperature range: - 40 ℃ ~ 85 ℃
 
 
•Memory
 
-68 KB of flash memory
 
-20 KB of SRAM
 
-Configurable Data Flash
 
-ISP ( In-System Programming )
 
-ICP ( In-Circuit Programming )
 
-IAP ( In-Application Programming )
 
 
•PWM
 
-Up to 4-channel PWM or 2 complementary paired PWM outputs
 
-Period/duty trigger ADC function
 
 
•Connectivity
 
-One USB 2.0 full speed device
 
-Up to three SPI s ( up to 32 MHz )
 
-Up to two I²C s ( up to 400 kHz )
 
-Up to two UART s ( up to 1 Mbps )
 
 
•Clock Control
 
-4 to 24 MHz external crystal oscillator
 
-22.1184 MHz internal RC oscillator ( ± 1 % accuracy at 25 ℃ , 5V )