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M258KE3AE
The NuMicro M258KE3AE 32-bit microcontroller is based on Arm Cortex-M23 core using Armv8-M architecture with COM/SEG LCD driver, capacitive touch sensing function, and USB 2.0 full speed device.. It runs up to 48 MHz and features 128 Kbytes Flash memory, 16 Kbytets SRAM, 1.75V ~ 5.5V wide operating voltage, 5V I/O tolerance, and -40℃ to +105℃ operating temperature.
M258KE3AE includes a 8 x 44, 6 x 46, 4 x 48 COM/SEG LCD driver with selectable bias voltage and duty, and it also built-in charge-pump to support 3V to 5V wide voltage of LCD panel; Capacitive touch sensing function with up to 16 touch-keys with single-scan or programmable periodic key-scans is supported; it also equipped with a crystal-less USB 2.0 full speed device, compling with USB Battery Charging Detection v1.2 (BC 1.2) profile for high-speed battery charging.
M258KE3AE provides plenty of peripherals such as Timers, Watchdog Timers, RTC, 5 channels of PDMA, 3 sets of UART, 1 setof Universal Serial Control Interface (USCI), 1 set of SPI/ I²S, 1 set of I²C, 1 set of ISO-7816-3, 6 channels of basic PWM, making it highly suitable for connecting comprehensive external modules. It also integrates high performance analog circuit, such as 16 channels of 12-bit 730 kSPS ADC, and a temperature sensor to reduce external components.
Supported packages LQFP128 (14mm x 14mm) with pin-compatible for different part numbers make the system design and parts change easily.
Target Application:
- Handheld meter
- Thermostat
- Smart Home / Home Appliance
- Industrial Control / Industrial Automation
- Temperature/Humidity Logger
Key Features:
• | Operating Characteristics | |
- | Voltage range: 1.75V ~ 5.5V | |
- | Temperature range: - 40 ℃ ~ 105 ℃ | |
- | EFT 4.4 KV | |
- | ESD HBM 7 KV | |
• | Core | |
- | Arm Cortex-M23 core using Armv8-M architecture, running up to 48 MHz, without TrustZone | |
- | 32-bit hardware multiplier/divider | |
• | Memories | |
- | 128 KB Flash | |
- | 16 KB SRAM | |
- | 4 KB LDROM | |
- | 1-region eXecute-Only-Memory (XOM) | |
- | ISP/ICP/IAP programming | |
• | Clocks | |
- | 4 ~ 32 MHz external high speed crystal oscillator (HXT) for precise timing operation | |
- | 32.768 kHz external low speed crystal oscillator (LXT) for RTC function and low-power system operation | |
- | 48 MHz internal high speed RC oscillator (HIRC) for system operation (Factory pre-trimmed to ±0.25% and frequency deviation ±2.5% over entire temperature from -40°C ~ 105 °C) | |
- | 4.032 MHz internal high speed RC oscillator (MIRC) for system operation | |
- | 38.4 kHz internal low speed RC oscillator (LIRC) for Watchdog Timer and wake-up operation | |
• | COM/SEG LCD Driver | |
- | 8 x 44, 6 x 46 & 4 x 48 COM/SEG LCD Driver | |
- | Built-in charge-pump feature | |
- | Supports 3V to 5V LCD panel | |
- | Supports 1/2, 1/3 and 1/4 bias voltage | |
- | Supports 1/4 duty, 1/6 duty and 1/8 duty | |
• | Capacitive Touch Sensing | |
- | Up to 16 touch keys with single-scan or programmable periodic key-scans features | |
• | Power management | |
- | Integrated with Power-on Reset, Brown-out Reset and Low Voltage Reset | |
- | Built-in LDO Integrated with Power-on Reset, Brown-out Reset and Low Voltage Reset | |
- | Built-in LDO | |
- | Support RTC with independent VBAT voltage source pin | |
• | Low Power Consumption | |
- | 110 μA/MHz in operating mode | |
- | 3.8 μA in Power-down mode (RTC on, RAM retention) | |
- | 2.2 μA in Power-down mode (RTC off, RAM retention) | |
- | 1.6 μA in Deep Power-down mode | |
• | Timers | |
- | Four 32-bit timers | |
- | One 24-bit SysTick timer | |
- | One independent watchdog | |
- | One window watchdog | |
- | RTC with Calendar and Alarm | |
• | PDMA | |
- | 5 channels | |
• | Analog | |
- | 16 channels of 12-bit 730 kSPS ADC | |
- | 2 sets of rail-to-rail analog comparators (ACMP) | |
• | Communication interfaces | |
- | 3 sets of UART interfaces | |
- | 1 set of I²C interfaces | |
- | 1 set of SPI/I²S | |
- | 1 set of Smart Card Interface (ISO-7816-3) | |
- | 1 set of USCI (configured as UART, SPI or I²C) | |
• | USB | |
- | Up to 1 set of USB 2.0 full speed device with on-chip PHY (crystal-less design) | |
- | Supports USB Battery Charging Detection v1.2 (BC 1.2) profile | |
• | 96-bit Unique ID ( UID ) | |
• | 128-bit Unique Customer ID ( UCID ) | |
• | Packages | |
- | LQFP128 ( 14 mm x 14 mm ) | |
• | Evaluation Board | |
- | NuMaker-M258KE |