
HT46R65/HT46C65
A/D with LCD Type 8-Bit MCU
Rev. 1.80
1
July 14, 2005
Features
Operating voltage:
f
SYS
=4MHz: 2.2V~5.5V
f
SYS
=8MHz: 3.3V~5.5V
24 bidirectional I/O lines
Two external interrupt input
Two 16-bit programmable timer/event counter with
PFD (programmable frequency divider) function
LCD driver with 41 3 or 40 4 segments
(logical output option for SEG0~SEG23)
8K 16 program memory
384 8 data memory RAM
Supports PFD for sound generation
Real Time Clock (RTC)
8-bit prescaler for RTC
Watchdog Timer
Buzzer output
On-chip crystal, RC and 32768Hz crystal oscillator
HALT function and wake-up feature reduce power
consumption
16-level subroutine nesting
8 channels 10-bit resolution A/D converter
4-channel 8-bit PWM output shared with 4 I/O lines
Bit manipulation instruction
16-bit table read instruction
Upto0.5 sinstructioncyclewith8MHzsystemclock
63 powerful instructions
All instructions in 1 or 2 machine cycles
Low voltage reset/detector function
52-pin QFP, 56-pin SSOP, 100-pin QFP packages
General Description
The HT46R65/HT46C65 are 8-bit, high performance,
RISC architecture microcontroller devices specifically
designed for A/D product applications that interface di-
rectly to analog signals and which require LCD Inter-
face. The mask version HT46C65 is fully pin and
functionally compatible with the OTP version HT46R65
device.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, multi-channel A/D
Converter, Pulse Width Modulation function, HALT and
wake-up functions, in addition to a flexible and
configurable LCD interface enhance the versatility of
these devices to control a wide range of applications re-
quiring analog signal processing and LCD interfacing,
such as electronic metering, environmental monitoring,
handheld measurement tools, motor driving, etc., for
both industrial and home appliance application areas.
Technical Document
FAQs