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
FAQsHA0003E Communicating between the HT48 & HT46 Series MCUs and the HT93LC46 EEPROM