This document describes the features of the ATmega8HVA/16HVA series microcontrollers, including high performance, low power, high endurance, and high security.
The ATmega8HVA and ATmega16HVA are low‑power 8‑bit AVR microcontrollers designed for Li‑ion battery monitoring and protection. They integrate high‑resolution ADCs, a Coulomb counter, on‑chip voltage regulation, and secure authentication features for safe charging and discharging of one‑ or two‑cell packs.
The document provides pin‑out diagrams for LGA and TSOP packages, describes each pin’s function, lists electrical specifications such as operating voltage and temperature range, and includes a register map, errata, and revision history. Resources for development tools are also referenced.
| Operating Voltage | 1.8 V – 9 V |
|---|---|
| Maximum Withstand Voltage | 28 V |
| Temperature Range | -20 °C to 85 °C |
| Flash Memory | 8 KB (ATmega8HVA) / 16 KB (ATmega16HVA) |
| EEPROM | 256 Bytes |
| SRAM | 512 Bytes |
| ADC Resolution | 12‑bit |
| Speed Grade | 1 MHz – 4 MHz |
| Write/Erase Cycles | 10 000 Flash / 100 000 EEPROM |
| Data Retention | 20 years at 85 °C / 100 years at 25 °C |
| Package Options | 36‑pad LGA, 28‑lead TSOP |
| Package Options | 36‑pad LGA, 28‑lead TSOP |
The device operates from 1.8 V up to 9 V.
ATmega8HVA provides 8 KB of In‑System Self‑Programmable Flash memory.
Data is retained for 20 years at 85 °C and 100 years at 25 °C.
Both a 36‑pad LGA and a 28‑lead TSOP package are offered.