M253LE3AE

M253LE3AE 32-bit microcontroller is based on Arm Cortex-M23 core for Armv8-M architecture. It runs up to 48 MHz and features 128 Kbytes Flash, 16 Kbytets SRAM, 1.75V ~ 5.5V wide operating voltage, and -40°C to +105°C operating temperature.

M253LE3AE includes a crystal-less USB 2.0 full speed device and one set of CAN FD interface. The USB interface supports up to 17 configurable endpoints, up to 5 VCOMs, and maximum 1 Kbytes buffer size.

M253LE3AE provides plenty of peripherals such as Timers, Watchdog Timers, 5 channels of PDMA, 5 sets of UART, 2 sets of I²C, 1 set of SPI/I²S and 1 set of Universal Serial Control Interface (USCI). It also includes high performance analog front-end circuit blocks, such as 12 channels of 12-bit 880 kSPS ADC, 6 channels of 16-bit PWM, and a temperature sensor to enhance product performance, to reduce external components and form factor simultaneously.

Supported packages LQFP48 (7mm x 7mm) with pin-compatible for different part numbers make the system design and parts change easily.

Target Application:

USB Bridge
Data Collector
Battery Management System
Automotive Related Module
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
 
-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
 
 
 
•Power management
 
-Integrated with Power-on Reset, Brown-out Reset and Low Voltage Reset
 
-Built-in LDO
 
 
•Low Power Consumption
 
-130 μA/MHz in operating mode
 
-35 μA/MHz in idle mode
 
-1.7 μA in Power-down mode (RTC off, RAM retention)
 
 
 
•Timers
 
-Four 32-bit timers
 
-One 24-bit SysTick timer
 
-One independent watchdog
 
-One window watchdog
 
-RTC with Calendar and Alarm
 
 
 
•PDMA
 
-5 channels
 
-Channel can be operated by – software trigger, SPI/I²S, UART, I²C, USCI, ADC and Timer
 
 
•Analog
 
-12 channels of 12-bit 840 kSPS ADC
 
 
 
•Communication interfaces
 
-5 sets of UART interfaces
 
-2 sets of I²C interfaces
 
-1 set of SPI/I²S
 
-1 set of USCI (configured as UART, SPI or I²C)
 
 
 
•CAN FD
 
-1 set of CAN FD controller with up to 64 data bytes per message
 
-Compliant with CAN protocol version 2.0 part A, B and ISO 11898-1: 2015
 
-Programmable receive and transmit FIFO
 
-Accessible 1-Kbyte RAM memory to allocate up to 256 words
 
 
 
•USB
 
-Supports 17 endpoints for configurable Control/Bulk/Interrupt/Isochronous transfer types and maximum 1024 bytes’ buffer size
 
-Compliant with USB 2.0 Full-Speed specification
 
-Provides 1 interrupt vector with 4 different interrupt events (NEVWK, VBUSDET, USB and BUS)
 
 
 
•96-bit Unique ID ( UID )
 
 
 
•128-bit Unique Customer ID ( UCID )
 
 
 
•Packages
 
-LQFP48 ( 7 mm x 7 mm )