HT46RU67/HT46CU67
A/D Type 8-Bit MCU with LCD
Technical Document
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Features
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Operating voltage:
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Watchdog Timer
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Buzzer output function
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Crystal, RC and 32768Hz crystal system oscillator
f
SYS
=4MHz: 2.2V~5.5V
f
SYS
=8MHz: 3.3V~5.5V
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32 bidirectional I/O lines
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Two external interrupt inputs
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Dual 16-bit programmable timer/event counters with
option
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Power down and wake-up functions reduce power
consumption
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16-level subroutine nesting
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8-channel 12-bit resolution A/D converter
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4-channel PWM outputs shared with 4 I/O lines
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SIO - Synchronous serial I/O - function
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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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Instruction execution within 1 or 2 machine cycles
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Low voltage reset/detector function
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52-pin QFP, 56-pin SSOP packages
Programmable Frequency Divider, PFD, function
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Single 8-bit programmable timer/event counter with
source clock prescaler
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47´3 or 46´4 segment LCD driver with logic
output option for SEG0~SEG23)
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32K´16 program memory
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768´8 data memory RAM
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Universal Asynchronous Receiver Transmitter
-UART
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PFD function for sound generation
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Real Time Clock - RTC
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8-bit RTC prescaler
100-pin QFP packages
General Description
The HT46RU67/HT46CU67 are 8-bit, high perfor-
mance, RISC architecture microcontroller devices spe-
cifically designed for A/D product applications that
interface directly to analog signals and which require an
LCD Interface. The HT46CU67, mask version device, is
fully pin and functionally compatible with its sister
HT46RU67 OTP device.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, multi-channel A/D
Converter, Pulse Width Modulation function, UART, se-
rial I/O interface, Power Down 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 requiring analog signal pro-
cessing and LCD interfacing, such as electronic meter-
ing, environmental monitoring, handheld measurement
tools, motor driving, etc. for both the industrial and home
appliance application areas.
Rev. 1.10
1
May 27, 2010
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
