Serial interface
- UART ... Asynchronous 2-wire serial interface: 1 channel
- IICA ... Clock synchronous 2-wire serial interface, multimaster supported, standby can be released upon address match in slave mode: 1 channel
10-bit resolution A/D conversion: 4 channels
Operational amplifier (products with operational amplifier only): 1 channel
Power-on-clear (POC) circuit
Low-voltage detector (LVI) (An interrupt/reset (selectable) is generated when the detection voltage is reached))
- Detection voltage: Selectable from sixteen levels between 1.91 and 4.22 V
Single-power-supply flash memory
- Flash self programming enabled
- Software protection function: Protected from outside party copying (no flash reading command)
Safety function
- Watchdog timer operated by clock independent from CPU ... A hang-up can be detected even if the system clock stops
- Supply voltage drop detectable by LVI ... Appropriate processing can be executed before the supply voltage drops below the operation voltage
- Equipped with option byte function ... Important system operation settings set in hardware
On-chip debug function ... Available to control for the target device, and to reference memory