M251ZC2AE
Nuvoton· Series M251/M252Lifecycle: Mass production
Cortex-M23 · 48 MHz · 32 KB · 8 KB · 1.75 ~ 5.5 V · QFN33
Key specifications
CPU core
Cortex-M23
Max CPU frequency
48 MHz
VDD = 1.75V ~ 5.5V
Program Flash
32 KB
SRAM
8 KB
Operating voltage
1.75 ~ 5.5 V
Operating temperature
-40 ~ 105°C
Package
QFN33
GPIO count
26
UART
2
SPI
0
I²C
2
ADC resolution
12
ADC channels
10
PWM channels
12
All parameters
| Core | |
| CPU core | Cortex-M23(Series-wide parameter) |
| Max CPU frequency | 48 MHz(Series-wide parameter) VDD = 1.75V ~ 5.5V |
| Memory | |
| Program Flash | 32 KB |
| SRAM | 8 KB |
| Power & environment | |
| Operating voltage | 1.75 ~ 5.5 V(Series-wide parameter) |
| Operating temperature | -40 ~ 105°C |
| Run current per MHz | 138 µA/MHz(Series-wide parameter) Normal Run mode, HCLK = 48 MHz, typical (general description headline) |
| Lowest-power mode current | 1.45 µA Deep Power-down mode, all peripherals disabled, VDD = AVDD = 3.3V, TA = 25 °C, typ |
| Package & IO | |
| Package | QFN33 |
| Package size | 5x5 |
| Pin count | 33 |
| GPIO count | 26 |
| Connectivity | |
| UART | 2 |
| SPI | 0 |
| I²C | 2 |
| I²S | 0 |
| QSPI | 1 |
| External bus (EBI/EXMC) | No |
| Analog | |
| ADC resolution | 12(Series-wide parameter) |
| ADC channels | 10 |
| ADC sample rate | 0.73 MSPS(Series-wide parameter) |
| DAC channels | 0 |
| Analog comparators | 0 |
| Op-amps / PGA | 0 |
| Temperature sensor | Yes(Series-wide parameter) |
| Timers & control | |
| PWM channels | 12 |
| RTC | Yes |
| DMA channels | 5 |
| Reliability | |
| ESD (HBM) | 6 kV |
| Flash endurance | 20,000 cycles(Series-wide parameter) min |
| Flash data retention | 20 years(Series-wide parameter) min, 20 kcycle, TJ = 105 °C |
Values are read by software from the exact location in the manufacturer's document and cross-checked. The latest manufacturer datasheet prevails.
Same series (27)
| PN | Max CPU frequency | Program Flash | SRAM | Operating temperature | Package | GPIO count |
|---|---|---|---|---|---|---|
| M251EC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | TSSOP28 | 23 |
| M251FC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | TSSOP20 | 15 |
| M251KE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP128 | 85 |
| M251KG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP128 | 85 |
| M251LC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | LQFP48 | 41 |
| M251LD2AE | 48 MHz | 64 KB | 12 KB | -40 ~ 105°C | LQFP48 | 41 |
| M251LE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP48 | 41 |
| M251LG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP48 | 41 |
| M251SC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | LQFP64 | 54 |
| M251SD2AE | 48 MHz | 64 KB | 12 KB | -40 ~ 105°C | LQFP64 | 54 |
| M251SE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP64 | 53 |
| M251SG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP64 | 53 |
| M251ZD2AE | 48 MHz | 64 KB | 12 KB | -40 ~ 105°C | QFN33 | 26 |
| M252EC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | TSSOP28 | 19 |
| M252FC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | TSSOP20 | 11 |
| M252KE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP128 | 81 |
| M252KG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP128 | 81 |
| M252LC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | LQFP48 | 37 |
| M252LD2AE | 48 MHz | 64 KB | 12 KB | -40 ~ 105°C | LQFP48 | 37 |
| M252LE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP48 | 37 |
| M252LG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP48 | 37 |
| M252SC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | LQFP64 | 50 |
| M252SD2AE | 48 MHz | 64 KB | 12 KB | -40 ~ 105°C | LQFP64 | 50 |
| M252SE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP64 | 49 |
| M252SG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP64 | 49 |
| M252ZC2AE | 48 MHz | 32 KB | 8 KB | -40 ~ 105°C | QFN33 | 22 |
| M252ZD2AE | 48 MHz | 64 KB | 12 KB | -40 ~ 105°C | QFN33 | 22 |