HT46C46 - Holtek Semiconductor

HT46C46 Cost-Effective A/D Type 8-Bit MCU

The HT46R46/HT46C46 and HT46R47/HT46C47 are 8 -b it , hi g h p e r f or m a n c e, R I S C a r c h i t e ct u r e microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors. The mask version HT46C46, HT46C47 are fully pin and functionally compatible with the OTP version HT46R46, HT.

Features

· Operating voltage:
· Up to 0.5ms instruction cycle with 8MHz system clock fSYS=4MHz: 2.2V~5.5V fSYS=8MHz: 3.3V~5.5V
· 13 bidirectional I/O lines (max.)
· 1 interrupt input shared with an I/O line
· 8-bit programmable timer/event counter with overflow at VDD=5V
· 4-level subroutine nesting for HT46R46/HT46C46
· 6-level subroutine nesting for HT46R47/HT46C47
· 4 channels 8-bit resolution A/D converter for HT46R46/HT46C46
· 4 channels 9-bit resolution A/D converter interrupt and 7-stage prescaler
· On-chip crystal and RC oscillator
· Watchdog Timer
· 1024´14 program memory for HT46R46/HT46C.