M485LIDAE

The M485LIDAE is a high performance, low power microcontroller powered by the Arm® Cortex®-M4F core with DSP extension. It can run up to 192 MHz with 175 µA/ MHz dynamic low power consumption. The 512 KB embedded dual bank Flash memory supports OTA ( Over-The-Air ) firmware upgrade, and the 160 KB embedded SRAM includes 32 KB cache to speed up external SPI Flash code execution. The factory pre-loaded bootloader delivers Secure Boot functionality to provide the code integrity check in embedded Flash memory. The built-in Secure Protection ROM provides a safe space for saving confidential program or data. One-Time Programmable ROM is also included for product life-cycle management.

The M485LIDAE supports operating voltage from 1.8V to 3.6V, and industrial operating temperature from - 40 ℃ to 105 ℃ . It is embedded with hardware cryptography engine and dual USB HS/FS OTG. Package type is LQFP48.

Target Application:

Fingerprint Module, Smart payment, Secure IoT device, secure USB Device, etc.

Key Features:

• Core
- Up to 192 MHz Arm® Cortex ®-M4F delivering 1.25 DMIPS per MHz
- DSP instruction set
- Memory Protection Unit ( MPU )

• Memory
- 512 KB zero-wait state Flash memory
- 160 KB RAM, including 32 KB external SPI Flash cache
- 4 KB Secure Protection ROM
- 2 KB One-Time-Programmable ROM

• Cyclic Redundancy Calculation Unit

• 16-ch Peripheral DMA Controller

• External Bus Interface
- LCD parallel interface, i80 mode

• Clocks
- 4 to 24 MHz crystal oscillator
- 32 kHz oscillator for RTC
- Internal 12 MHz RC oscillator
- Internal 10 kHz RC oscillator
- Internal PLL up to 480 MHz

• RTC
- 80 bytes of battery-powered backup registers

• Timer & PWM
- Four 32-bit timers
- Twelve Enhanced PWM with twelve 16-bit timers
- Twelve Basic PWM with two 16-bit timers
- One 24-bit count-down SysTick timer
- One watchdog timer
- One window watchdog timer

• Cryptography Accelerator
- ECC ( P-521, B-571, K-571 )
- AES-128, 192, 256
- DES/ 3DES
- SHA-160, 224, 256, 384, 512
- HMAC
- Random number generator

• Analog Peripheral
- One 12-bit, up to 12-ch 5MSPS SAR ADC
- Two 12-bit, 1 MSPS DAC
- Two rail-to-rail comparators
- Two operational amplifiers

• Communication Interface
- Up to 6 low power UART interfaces ( 17 Mbps ) , including 2 LIN interfaces
- Up to 3 ISO-7816 interfaces ( 3.4 MHz ) , supporting full duplex UART mode
- Three I²C interfaces ( Up to 3.4 Mbps )
- One SPI Flash interface ( Up to 96 MHz ) supports quad mode
- One Quad- SPI interface ( Up to 96 MHz )
- Up to 3 SPI / I²S interfaces ( SPI up to 96 MHz , I²S up to 192 kHz/16-bit )
- One I²S interface ( 192 kHz/32-bit )
- Two USCI interfaces, supporting configurable UART / SPI / I²C
- Two Secure Digital Host Controllers ( 50 MHz )

• Control Interface
- Two quadrature encoder interfaces
- One 24-bit, 3-ch input capture timer/counter units

• Advanced Connectivity
- USB 2.0 full speed device/ host/ OTG controller with on-chip PHY

• Operating Characteristic
- Voltage range: 1.8V to 3.6V
- Temperature range: - 40 ℃ to +105 ℃