ATMEGA8HVA-4TU

Product Summary

The ATMEGA8HVA-4TU contains a 12-bit ADC that can be used to measure the voltage of each cell individually. The ATMEGA8HVA-4TU contains a high-voltage tolerant, open-drain IO pin that supports serial communication. Programming can be done in-system using the 4 General Purpose IO ports that support SPI programming. The ATMEGA8HVA-4TU contains secure authentication features as well as autonomous battery protection during charging and discharging.

Parametrics

ATMEGA8HVA-4TU absolute maximum ratings: (1) Speed: 1-4MHZ; (2) Power Supply: 1.8- 9.0V; (3) Package: 28T; (4) Operation Range: -20°C to +80°C.

Features

ATMEGA8HVA-4TU features: (1) High Performance, Low Power AVR 8-bit Microcontroller; (2) Advanced RISC Architecture: C131 Powerful Instructions - Mst Single Clock Cycle Eecution, C32 x 8 General Purpose Working Register, CFully Static Operation, CUp to 4 MIPS Throughput at 4 MH; (3) High Endurance Non-volatile Memorie segments: 8K Bytes of In-System Self-Programmable Flash Program Memory, C256 Bytes EEPROM, CWrite/Erase cycles: 10,000 Flash/100,000 EEPROM, CData Retention: 20 years at 85°C/100 years at 25, CProgramming Lock for Software Security; (4) Battery Management Features: COne or Two Cells in Series, COver-current Protection Charge and Discharge, CShort-circuit Protection Discharge, CHigh Voltage Outputs to Drive N-Channel Charge/Discharge FET; (5) Peripheral Features: Two configurable 8- or 16-bit Timers with Separate Prescaler, Optional Input Capture (IC) , Compare Mode and CTC, CSPI - Serial Programmable Interface, CHigh Resolution Coulomb Countr ADC for Current Measurements, CProgrammable Watchdog Time; (6) Special Microcontroller Features: CdebugWIRE On-chip Debug Syste, CIn-System Programmable via SPI ports, CPower-on Reset, COn-chip Voltage Regulator with Sort-circuit Monitoring Interface, CExternal and Internal Interrupt Source, CSleep Modes: Idle, ADC Noise Reduction, Power-save, and Power-off; (7) Additional Secure Authentication Features available only under NDA; (8) Packages: 28-lead TSOP; (9) Operating Voltage: 1.8 - 9V; (10) Maximum Withstand Voltage (High-voltage pins) : 28V; (11) Temperature Range: -20°C to 85°C; (12) Speed Grade: 1-4MHz .

Diagrams