ATMEGA16HVA-4TU

ATMEL  ATMEGA16HVA-4TU  芯片, 微控制器, 8位, AVR, 16K闪存, 28TSOP

The is a 8-bit Battery Management Microcontroller for 1-cell and 2-cell Li-ion applications that require high security and authentication, accurate monitoring and high utilization of the cell energy. The microcontroller includes 16kB self-programming flash program memory, 512byte SRAM, 256byte EEPROM, 1 or 2 cells in series, over-current, high-current and short-circuit protection, 12-bit voltage A/D converter, 18-bit coulomb counter current A/D converter and debug Wire interface for on-chip debug. The device features autonomous battery protection during charging and discharging and supports very accurate accumulated current measurements using a 18-bit ADC with a resolution of 0.84µV. It also supports up to 4MIPS throughput at 4MHz. The device operates between 1.8 to 9V.

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Advanced RISC architecture

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DebugWIRE on-chip debug system

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In-system programmable via SPI ports

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Power-on reset

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On-chip voltage regulator with short-circuit monitoring interface

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External and internal interrupt sources

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Sleep modes - Idle, ADC noise reduction, power-save and power-off

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One or two cells in series

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Over-current protection charge and discharge

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Short-circuit protection discharge

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High voltage outputs to drive N-channel charge/discharge FETs

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Two configurable 8 or 16-bit timers with separate prescaler, optional IC, CTC

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SPI-serial programmable interface

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12-bit voltage ADC, four external and one internal ADC inputs

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High resolution coulomb counter ADC for current measurements

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Programmable watchdog timer