General Description
The HT46R46-H are 8-bit, high performance, RISC architecture microcontroller devices specifically designed
for A/D applications that interface directly to analog signals, such as those from sensors.

FEATUREs
Operating voltage:
  fSYS=4MHz: VLVR~5.5V with LVR enabled
  fSYS=8MHz: 3.3V~5.5V with LVR disabled
13 bidirectional I/O lines (max.)
1 interrupt input shared with an I/O line
8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler
On-chip crystal and RC oscillator
Watchdog Timer
102414 program memory
648 data memory RAM
Supports PFD for sound generation
HALT function and wake-up feature reduce power consumption
Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V
4-level subroutine nesting
4 channels 8-bit resolution A/D converter
1 channel 8-bit PWM output shared with an I/O line
Bit manipulation instruction
14-bit table read instruction
63 powerful instructions
All instructions in one or two machine cycles
Low voltage reset function
18-pin DIP/SOP package