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MAXQ1004 1-Wire和SPI認(rèn)證微控制器
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.
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.
- 16KB Flash Memory, In-Application Programmable
- 640B of Data RAM
- 4KB of ROM
- JTAG/TAP Bootloader Mode for In-System Programming
- 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
- Flash Programming Through Secure ROM Loader
- Secret Key Destruction on Mass Erase
- Permanent Loader Lockout Option
- Code and Secret Scrambling
- 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://m.sdkjxy.cn/soft/39/2010/2010050974560.html
應(yīng)用/使用
電池充電器
電池組
便攜式電子
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