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
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
Note:
For the dice form, the TMR0 and TMR1 pads have to be bonded to VDD or VSS if the TMR0
and/or TMR1 pad are not used.
The (TMR0) INT indicates that the TMR0 pad should be bonded to the INT pin.
The PC5 (TMR1) indicates that the TMR1 pad should be bonded to the PC5 pin.
HT48CXX/HT48RXX
5
25th May '99
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