HOLTEK
HT46R47
8-Bit A/D Type OTP MCU
 Features
Operating voltage: Up to 0.5us instruction cycle with 8MHz
---fSYS=4MHz: 3.3V~5.5V ---systemclock at VDD=5V
---fSYS=8MHz: 4.5V~5.5V Six-level subroutine nesting
13 bidirectional I/O lines (max.) 4 channels 9-bit resolution (8-bit accuracy)
1 interrupt input shared with an I/O line ---A/D converter
8-bit programmable timer/event counter 1 channel (6+2)-bit PWM output shared
--with overflow interrupt and 7-stage prescaler ---with an I/Oline
On-chip crystal and RC oscillator Bit manipulation instruction
Watchdog Timer 14-bit table read instruction
2048x14 program memory PROM 63 powerful instructions
64x8 data memory RAM All instructions in one or two machine cycles
Supports PFD for sound generation Low voltage reset function
HALT function and wake-up feature 18-pin DIP/SOP package
---reduce power consumption  
 General Description
The device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O
product applications. The device is particularly suitable for use in products such as battery
charger controllers and A/D applications. A HALT feature is included to reduce power
consumption. The program and option memories can be electrically programmed, making
the microcontroller suitable for use in product development.