M253LD3BE
Nuvoton· Series M253Lifecycle: Mass production
Cortex-M23 · 48 MHz · 64 KB · 16 KB · 1.75 ~ 5.5 V · LQFP48
Key specifications
CPU core
Cortex-M23
Max CPU frequency
48 MHz
VDD=1.75V ~ 5.5V
Program Flash
64 KB
SRAM
16 KB
Operating voltage
1.75 ~ 5.5 V
Operating temperature
-40 ~ 105°C
Package
LQFP48
GPIO count
37
UART
5
SPI
1
I²C
2
CAN
1
USB Full-Speed
1
ADC resolution
12
ADC channels
12
PWM channels
6
All parameters
| Core | |
| CPU core | Cortex-M23 |
| Max CPU frequency | 48 MHz VDD=1.75V ~ 5.5V |
| Memory | |
| Program Flash | 64 KB |
| SRAM | 16 KB |
| Power & environment | |
| Operating voltage | 1.75 ~ 5.5 V |
| Operating temperature | -40 ~ 105°C |
| Lowest-power mode current | 1.5 µA mode=Power-down mode, all peripherals disable (LXT/LIRC off, RTC off), VDD=3.3V, temperature=25°C, stat=typ |
| Package & IO | |
| Package | LQFP48 |
| Package size | 7x7 |
| Pin count | 48 |
| GPIO count | 37 |
| Connectivity | |
| UART | 5 |
| SPI | 1 |
| I²C | 2 |
| I²S | 1 |
| CAN | 1 |
| CAN FD | Yes |
| USB Full-Speed | 1 |
| USB roles | Device |
| External bus (EBI/EXMC) | No |
| Analog | |
| ADC resolution | 12 |
| ADC channels | 12 |
| ADC sample rate | 0.73 MSPS stat=max, note=FSPS = FADC / TCONV, EXTSMPT = 0 |
| Analog comparators | 2 |
| Temperature sensor | Yes |
| Timers & control | |
| PWM channels | 6 |
| RTC | Yes |
| DMA channels | 5 |
| Reliability | |
| ESD (HBM) | 7 kV |
| Flash endurance | 20,000 cycles |
| Flash data retention | 10 years cycles=20 kcycle, temperature=TJ = 125 °C, stat=min |
Values are read by software from the exact location in the manufacturer's document and cross-checked. The latest manufacturer datasheet prevails.