M254SD2AE
Nuvoton· Series M254/M256/M258 Low Power LCDLifecycle: Mass production
Cortex-M23 · 48 MHz · 64 KB · 8 KB · 1.75 ~ 5.5 V · LQFP64
Key specifications
CPU core
Cortex-M23
Max CPU frequency
48 MHz
VDD=1.75V ~ 5.5V
Program Flash
64 KB
SRAM
8 KB
Operating voltage
1.75 ~ 5.5 V
Operating temperature
-40 ~ 105°C
Package
LQFP64
GPIO count
54
UART
3
SPI
1
I²C
1
USB Full-Speed
0
ADC resolution
12
ADC channels
16
PWM channels
6
All parameters
| Core | |
| CPU core | Cortex-M23(Series-wide parameter) |
| Max CPU frequency | 48 MHz VDD=1.75V ~ 5.5V |
| Memory | |
| Program Flash | 64 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 | 110 µA/MHz(Series-wide parameter) mode=Normal Run, fHCLK=48 MHz, note=headline figure from the general description; typ/max and VDD/TA not stated there |
| Lowest-power mode current | 1.5 µA(Series-wide parameter) mode=Deep Power-down (DPD), all peripherals disabled, RTC off, VDD=3.3V, TA=25°C, typ_max=typ |
| Package & IO | |
| Package | LQFP64 |
| Package size | 7x7 |
| Pin count | 64 |
| GPIO count | 54 |
| Connectivity | |
| UART | 3 |
| SPI | 1 |
| I²C | 1 |
| I²S | 1 |
| USB Full-Speed | 0 |
| Analog | |
| ADC resolution | 12(Series-wide parameter) |
| ADC channels | 16 |
| ADC sample rate | 0.73 MSPS(Series-wide parameter) |
| DAC channels | 0 |
| Analog comparators | 2 |
| Temperature sensor | Yes(Series-wide parameter) |
| Timers & control | |
| PWM channels | 6 |
| RTC | Yes |
| DMA channels | 5 |
| Other features | |
| Segment LCD | 4x32/6x30/8x28 |
| Touch keys | 0 |
| Reliability | |
| ESD (HBM) | 5 kV |
| Flash endurance | 20,000 cycles(Series-wide parameter) |
| Flash data retention | 10 years(Series-wide parameter) cycles=20 kcycle, TJ=125°C, typ_max=min |
Values are read by software from the exact location in the manufacturer's document and cross-checked. The latest manufacturer datasheet prevails.
Same series (19)
| PN | Max CPU frequency | Program Flash | SRAM | Operating temperature | Package | GPIO count |
|---|---|---|---|---|---|---|
| M254KE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP128 | 86 |
| M254KG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP128 | 86 |
| M254MD2AE | 48 MHz | 64 KB | 8 KB | -40 ~ 105°C | LQFP44 | 37 |
| M254QE3AE | — | — | — | — | — | — |
| M254SD3AE | 48 MHz | 64 KB | 16 KB | -40 ~ 105°C | LQFP64 | 53 |
| M254SE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP64 | 53 |
| M254SG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP64 | 53 |
| M256KE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP128 | 86 |
| M256KG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP128 | 86 |
| M256MD2AE | 48 MHz | 64 KB | 8 KB | -40 ~ 105°C | LQFP44 | 37 |
| M256QE3AE | — | — | — | — | — | — |
| M256SD2AE | 48 MHz | 64 KB | 8 KB | -40 ~ 105°C | LQFP64 | 54 |
| M256SE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP64 | 53 |
| M256SG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP64 | 53 |
| M258KE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP128 | 82 |
| M258KG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP128 | 82 |
| M258QE3AE | — | — | — | — | — | — |
| M258SE3AE | 48 MHz | 128 KB | 16 KB | -40 ~ 105°C | LQFP64 | 49 |
| M258SG6AE | 48 MHz | 256 KB | 32 KB | -40 ~ 105°C | LQFP64 | 49 |