HT82M72E/HT82M72A
RF One Channel Mouse 8-bit OTP MCU
Technical Document
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Tools Information
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FAQs
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Application Note
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HA0075E MCU Reset and Oscillator Circuits Application Note
Features
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Operating voltage:
SYS= 27MHz: 2.0V~3.3V
2.2V±0.1V Low battery detector with internal bit set, it
f
is detect the BAT-in input voltage
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Watchdog Timer function
Built-in 1MHz RC OSC source
Single 16-bit internal timer with overflow interrupt and
timer input
One external crystal (27MHz) to supply mi-
cro-controller system clock and RF modules refer-
ence frequency
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Integrated high-drive CMOS inverter 27MHz ampli-
fier
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Has 2.4 LVR (for DC-output) by OTP option (default
is enable), the LVR is detector the DC output pin
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27MHz or 6MHz external crystal oscillator
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63 powerful instructions
17 I/O bi-directional lines with pull-high options
All instructions executed in one or two machine cy-
cles
Power down and wake-up functions to reduce power
consumption
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Low voltage reset function
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2-level subroutine nesting
20-pin SOP, 28-pin SOP/SSOP package
Bit manipulation instruction
Table read instructions
Built-in DC/DC to provide stable (2.8 , 3.1 , 3.4 , 3.8 ,
4.2 , 4.6V use OTP option) VDD with error ±5%
General Description
The device is an 8-bit high performance, RISC architec-
ture microcontroller devices specifically designed for
multiple I/O control product applications. With its inter-
nal 27MHz amplifier the device is suitable for applica-
tions such as 27MHz or 2.4GHz keypads etc.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, Power Down and
wake-up functions, Watchdog timer, motor driving, in-
dustrial control, consumer products, subsystem control-
lers, etc.
Block Diagram
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Rev. 1.30
1
April 3, 2009