HT48R50A-1
8-Bit Microcontroller
Features
路
路
路
路
路
路
路
路
路
Operating voltage:
f
SYS
=4MHz: 3.3V~5.5V
f
SYS
=8MHz: 4.5V~5.5V
Low voltage reset function
35 bidirectional I/O lines (max.)
1 interrupt input shared with an I/O line
8-bit programmable timer/event counter with
overflow interrupt and 8-stage prescaler
16-bit programmable timer/event counter
and overflow interrupts
On-chip RC oscillator, external crystal and
RC oscillator
32768Hz crystal oscillator for timing
purposes only
Watchdog Timer
路
路
路
路
路
路
路
路
路
路
路
4096麓15 program memory ROM
160麓8 data memory RAM
Buzzer driving pair and PFD supported
HALT function and wake-up feature reduce
power consumption
6-level subroutine nesting
Up to 0.5ms instruction cycle with 8MHz
system clock at V
DD
=5V
Bit manipulation instruction
15-bit table read instruction
63 powerful instructions
All instructions in one or two machine
cycles
28-pin SKDIP/SOP, 48-pin SSOP package
General Description
This device is an 8-bit high performance
RISC-like microcontroller designed for multi-
ple I/O product applications. It is particularly
suitable for use in products such as remote con-
trollers, fan/light controllers, washing machine
controllers, scales, toys and various subsystem
controllers. A HALT feature is included to re-
duce power consumption.
Rev. 1.10
1
July 2, 2001