MAXQ1004 1-Wire和SPI认证微控制器   The MAXQ1004 is a low-power microcontroller that integrates a 10-bit ADC, 1-Wire® slave interface, SPI™, AES encryption, random-number generator (RNG), and temperature sensor with a 16-bit MAXQ® pipelined CPU. Performance bandwidth is sufficient to handle master or slave challenge-response authentication in portable devices.

The device incorporates 16KB of flash memory and 640B of RAM. Factory programming of a customer secret key is available upon request. The microcontroller runs within a wide 1.7V to 3.6V operating range.

For the ultimate in low-power performance, an ultra-low-power stop mode (300nA typ) is available. In this mode, only a minimum amount of circuitry is powered to support detection of the start of a 1-Wire transaction. When 1-Wire activity is detected, the microcontroller is turned on and the command is executed in an atomic fashion. This allows for stateless operation between commands, providing the highest reliability and lowest power consumption.  

High-Performance, Low-Power, 16-Bit MAXQ20 RISC Core

6MHz Operation from an Internal Oscillator, Approaching 1MIPS per MHz

1.7V to 3.6V Wide Operating Voltage

Three Independent Data Pointers Accelerate Data Movement with Automatic Increment/Decrement

Up to Eight General-Purpose I/O Pins

16-Level Hardware Stack

Optimized for C-Compiler (High-Speed/Density Code)

Memory

• 16KB Flash Memory, In-Application Programmable
• 640B of Data RAM
• 4KB of ROM
• JTAG/TAP Bootloader Mode for In-System Programming

Peripheral Features

• 10-Bit Delta-Sigma ADC, Internal Reference
• 1-Wire Slave Interface
• On-Chip Power-On Reset (POR)/Power-Fail Reset
• Overvoltage Detection
• Programmable Watchdog Timer
• Built-In Temperature Sensor, ±6°C

Secure Programming Interface

• Flash Programming Through Secure ROM Loader
• Secret Key Destruction on Mass Erase
• Permanent Loader Lockout Option
• Code and Secret Scrambling

Unique 64-Bit Serial Number

Low-Power Consumption

• 300nA (typ) in Stop Mode
• 3.75mA (typ) at 6MHz, 0.8mA (typ) at 1 MHz
• Low-Power Divide-by Modes (2, 4, 8, 256)
• 1-Wire/Interrupt Activity Detector

MAXQ1004,pdf: http://www.elecfans.com/soft/39/2010/2010050974560.html

应用/使用

电池充电器

电池组

便携式电子