HT82B40R Datasheet, PDF (1/57 Pages) Holtek Semiconductor Inc – I/O MCU with USB Interface

HT82B40R/HT82B40A
I/O MCU with USB Interface
Technical Document
· Application Note
- HA0075E MCU Reset and Oscillator Circuits Application Note
Features
· Operating voltage:
f_SYS=6M/12MHz: 3.3V~5.5V
· Low voltage reset function
· 34 bidirectional I/O lines (max.)
· 8-bit programmable timer/event counter with
overflow interrupt
· 16-bit programmable timer/event counter and
overflow interrupts
· Watchdog Timer
· 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
· Integrated 1.5kW resistor between V33O and
D- pins for USB applications
· Fully integrated 6MHz or 12MHz oscillator
· All I/O pins have wake-up functions
· Power-down function and wake-up feature reduce
power consumption
· 8-level subroutine nesting
· Up to 0.33ms instruction cycle with 12MHz system
clock at V_DD=5V
· Bit manipulation instruction
· 15-bit table read instruction
· 63 powerful instructions
· All instructions in one or two machine cycles
· 20/28/48-pin SSOP, 20/32-pin QFN packages
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.
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
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 HT82B40A mask version type is fully pin and func-
tionally compatible with the HT82B40R OTP version de-
vice.
Rev. 1.10
1
September 4, 2009