HT46R23
8-Bit OTP Microcontroller
Features
·
Operating voltage:
·
Up to 0.5ms instruction cycle with 8MHz system clock
f
SYS
=4MHz: 3.3V~5.5V
f
SYS
=8MHz: 4.5V~5.5V
at V
DD
=5V
·
23 bidirectional I/O lines (max.)
·
1 interrupt input shared with an I/O line
·
16-bit programmable timer/event counter with overflow
·
8-level subroutine nesting
·
8 channels 10-bit resolution (9-bit accuracy) A/D con-
verter
interrupt and 7-stage prescaler
·
2-channel (6+2)/(7+1)-bit PWM output shared with
two I/O lines
·
On-chip crystal and RC oscillator
·
Watchdog Timer
·
4096´15 program memory PROM
·
192´8 data memory RAM
·
Supports PFD for sound generation
·
HALT function and wake-up feature reduce power
·
Bit manipulation instruction
·
15-bit table read instruction
·
63 powerful instructions
·
All instructions in one or two machine cycles
·
Low voltage reset function
·
I
2
C BUS (slave mode)
·
24/28-pin SKDIP/SOP package
consumption
General Description
The device is an 8-bit high performance RISC-like
microcontroller designed for multiple I/O product appli-
cations. It is particularly suitable for use in products
such as washing machine controllers and home appli-
ances. A HALT feature is included to reduce power con-
sumption.
The program and option memories can be electrically
programmed, making this microcontroller suitable for
product development applications.
I C is a trademark of Philips Semiconductors.
2
Rev. 1.30
1
August 17, 2001
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
