HT46R65/HT46C65
A/D with LCD Type 8-Bit MCU
Technical Document
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Features
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Operating voltage:
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Buzzer output
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On-chip crystal, RC and 32768Hz crystal oscillator
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HALT function and wake-up feature reduce power
f
SYS
=4MHz: 2.2V~5.5V
f
SYS
=8MHz: 3.3V~5.5V
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24 bidirectional I/O lines
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Two external interrupt input
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Two 16-bit programmable timer/event counter with
consumption
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16-level subroutine nesting
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8 channels 10-bit resolution A/D converter
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4-channel 8-bit PWM output shared with 4 I/O lines
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Bit manipulation instruction
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16-bit table read instruction
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Up to 0.5ms instruction cycle with 8MHz system clock
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63 powerful instructions
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All instructions in 1 or 2 machine cycles
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Low voltage reset/detector function
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52-pin QFP, 56-pin SSOP, 100-pin QFP packages
PFD (programmable frequency divider) function
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LCD driver with 41´3 or 40´4 segments
(logical output option for SEG0~SEG23)
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8K´16 program memory
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384´8 data memory RAM
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Supports PFD for sound generation
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Real Time Clock (RTC)
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8-bit prescaler for RTC
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Watchdog Timer
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.
Rev. 1.90
1
February 14, 2006
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
