MAXQ1740

DeepCover Secure Microcontroller for Magnetic Card Reading

Single-Chip Secure Magnetic Stripe Reader Solution with Hardware Cryptography and Secure Key Storage

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Part Details

Core Functionality
- High-Performance, Low-Power, 16-Bit MAXQ20C RISC Core
- 6MHz Internal Oscillator (±10%)
- Up to 12MHz External Crystal Supported
- 1.7V to 3.6V Operating Voltage
- 1-Wire^® Interface for Debugger and Flash Programming
- Optimized for C-Compiler
Security
- AES Hardware Accelerators
- Hardware True Random-Number Generator
- Self-Destruct Input for Tamper Detection
- Permanent Loader Lockout Option
- Code Scrambling
Memory
- 16KB Flash Memory
  - 512 Bytes Memory Page Sectors
  - 1000 Erase/Write Cycles per Sector
- 1152 Bytes Fast-Wipe NV SRAM, 128 Bytes Usable by Cryptographic Engine
- 6KB Utility ROM with User-Callable Routines
I/O and Peripherals
- Triple-Track Magnetic Stripe Head Interface
- Two SPI Communication Ports
- USART Communication Port
- Two 16-Bit Timers
- I²C Communication Port
- Up to 16 General-Purpose I/O Pins
- Up to 8 External Interrupt Pins
Low Power Consumption
- 3μA Current in Lowest Power Stop Mode
- 3.75mA (typ) at 6MHz, 0.8mA (typ) at 1MHz
- Divided System Clock Modes Available
Additional Peripherals
- On-Chip Power-On/Power-Fail Reset
- Supply Overvoltage Detection
- Programmable Watchdog Timer
- Wake-Up Timer