HT46RU24 A/D Type 8-Bit OTP MCU with UART Feature.
Holtek Semiconductor
HT46RU24 - A/D Type 8-Bit OTP MCU
HT46RU24 A/D Type 8-Bit OTP MCU with UART Features · Operating voltage: fSYS=4MHz: 2.2V~5.5V fSYS=8MHz: 3.3V~5.5V · 40 bidirectional I/O lines (max.).