HT82B40R/HT82B40A
I/O MCU with USB Interface
Technical Document
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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=6M/12MHz: 3.3V~5.5V
Fully integrated 6MHz or 12MHz oscillator
All I/O pins have wake-up functions
f
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Low voltage reset function
Power-down function and wake-up feature reduce
power consumption
34 bidirectional I/O lines (max.)
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8-bit programmable timer/event counter with
overflow interrupt
8-level subroutine nesting
Up to 0.33ms instruction cycle with 12MHz system
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16-bit programmable timer/event counter with
overflow interrupt
clock at VDD=5V
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Bit manipulation instruction
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Watchdog Timer
15-bit table read instruction
PS2 and USB modes supported
USB 2.0 low speed function
3 endpoints supported - endpoint 0 included
4096´15 program memory
160´8 data memory RAM
63 powerful instructions
All instructions in one or two machine cycles
20/28/48-pin SSOP, 20/32-pin QFN and
48-pin LQFP packages
Integrated 1.5kW resistor between V33O and
USBPDN pins for USB applications
General Description
The HT82B40R and HT82B40A are 8-bit high perfor-
mance, RISC architecture microcontroller devices spe-
cifically designed for multiple I/O control product
applications.
devices extremely suitable for use in computer peripheral
product applications as well as many other applications
such as industrial control, consumer products, subsys-
tem controllers, etc.
The advantages of low power consumption, I/O flexibility,
timer functions, integrated USB interface, Power Down
and wake-up functions, Watchdog timer etc, make the
The HT82B40A mask version type is fully pin and func-
tionally compatible with the HT82B40R OTP version de-
vice.
Rev. 1.50
1
February 17, 2011