8.5 KB FRAM — the write-without-wear memory
FRAM writes at bus speed with no erase cycle required and is rated for 10¹⁵ write cycles — orders of magnitude beyond Flash endurance. This makes it a fit for data-logging, configuration storage, and any application where the MCU writes its own program memory or non-volatile data frequently. The 1K x 8 RAM handles stack and scratchpad.
16 MHz core, 60 I/O, industrial temperature
The CPU16 runs at 16 MHz — enough for sensor polling, communication protocol handling, and control loops in the low-power domain this family targets. With 60 general-purpose I/O lines in the 64-LQFP package, it can interface to parallel LCDs, keypads, or multiple external peripherals without a port expander.
Peripherals and connectivity
On-chip peripherals include a brown-out detect and reset, POR, PWM channels, and a watchdog timer. An 8-channel 10-bit ADC handles analog inputs like thermistors, potentiometers, or current-sense resistors.
Package and rework considerations
The 64-LQFP package measures 10x10 mm with a 0.5 mm pitch. It is hand-solderable with a fine-tip iron and a steady hand, though a hot-air station makes removal cleaner. The exposed pad is not present on this LQFP variant, so all thermal dissipation goes through the leads; keep the ambient airflow adequate if running continuous PWM loads near the 85°C limit.
Sourcing and availability
For volume production or long-term BOM planning, this part presents no LTB risk in the near term.