Key Features

• ARM® Cortex® M3 Processor Core Allows for Easy Integration into Applications
  • 108MHz Core Operating Frequency Through PLL
  • 1MB Dual-Bank Flash Memory with Cache
  • 256KB System SRAM
  • 8KB AES Self-Encrypted NVSRAM
• Security Features Facilitate System-Level Protection
  • Secure Boot Loader with Public Key Authentication
  • AES, DES and SHA Hardware Accelerators
  • Modulo Arithmetic Hardware Accelerator (MAA)Supporting RSA, DSA, and ECDSA
  • 8-Line Secure Keypad Controller
  • Hardware True Random-Number Generator
  • Die Shield with Dynamic Fault Detection
  • 6 External Tamper Sensors with IndependentRandom Dynamic Patterns
  • 256-Bit Flip-Flop-Based Battery-Backup AES KeyStorage
  • Temperature and Voltage Tamper Monitor
  • Real-Time Clock
• Integrated Peripherals Reduce External Component Count
  • Triple-Track Magnetic Stripe Head Interface
  • One ISO 7816 Smart Card Interface with IntegratedTransceiver (1.8V, 3V, and 5V)
  • USB 2.0 Device with Internal Transceiver andDedicated PLL
  • 3 SPI Ports, 2 UART Ports, and 1 I2C Controller
  • 6 Timers, 4 with PWM Capability
  • Up to 70 General-Purpose I/O Pins
  • 2-Channel, 10-Bit ADC and 1-Channel, 8-Bit DAC
  • Color/Monochrome LCD TFT Controller
  • 4-Channel DMA Controller
• Power Management Optimizes Battery Life and Reduces Active Power Consumption
  • Single 3.3V Supply Operation*
  • Integrated Battery-Backup Switch
  • Clock Gating Function
  • Low-Current Battery-Backup Operation

MAX32550: Functional Diagram

Applications/Uses

• ATM Keyboards
• EMV Card Reader
• PCI Mobile Payment Terminals (mPOS)