HT48CXX/HT48RXX
8-Bit Microcontroller Series
Features
•
•
•
•
•
•
•
Operating voltage: 2.4V~5.2V
Bidirectional I/O lines with a selection of 18,
22, 32 and 56 lines
One interrupt input
Programmable timer/event counters with
overflow interrupts and a selection of one
8-bit counter, one 8-bit and one 16-bit count-
ers, or two 16-bit counters
On-chip crystal and RC oscillator
Watchdog timer
Program ROM with size selection of
1K
×
14, 2K
×
14, 4K
×
15 and 8K
×
16 bits
•
•
•
•
•
•
•
•
Data RAM with size selection of 64
×
8, 96
×
8,
160
×
8 and 224
×
8 bits
Halt function and wake-up feature to reduce
power consumption
63 powerful instructions
Up to 0.5
µ
s instruction cycle with 8MHz
system clock at V
DD
=5V
All instructions in 1 or 2 machine cycles
14-bit/15-bit/16-bit table read instructions
2-level/4-level/8-level subroutine nesting
Bit manipulation instructions
General Description
The HT48C10/48C30/48C50/48C70 are 8-bit
high performance RISC-like microcontrollers,
specifically designed for multiple I/O product
applications. These devices are suitable for use
in products such as remote controllers, fan/light
controllers, washing machine controllers,
scales, toys, and various subsystem controllers.
They all contain a halt feature to reduce power
consumption. The major differences between
these microcontrollers are attributed to vari-
ations in sizes of the ROM and RAM, as well as
bit number, counter number, I/O line number,
and different level subroutine nesting. Roughly
speaking, the HT48C10 is a microcontroller
with most economic features and the HT48C70
is one with the most features of the four micro-
controllers.
1
25th May ’99