HT45R35
C/R to F Type 8-Bit OTP MCU
Features
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Operating voltage:
Power Down and Wake-up function reduce power
f
f
SYS=4MHz: 2.2V~5.5V
SYS=8MHz: 3.3V~5.5V
consumption
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Up to 0.5ms instruction cycle with 8MHz system clock
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16 bidirectional I/O lines
at VDD=5V
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Two external interrupt inputs shared with I/O lines
All instructions executed in one or two machine
cycles
8-bit programmable timer/event counter with
overflow interrupt and 7-stage prescaler
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14-bit table read instruction
Four-level subroutine nesting
Bit manipulation instruction
63 powerful instructions
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External RC oscillation converter
On-chip crystal and RC oscillator
Watchdog Timer
12 capacitor/resistor sensor input
2048´14 program memory
120´8 data memory RAM
Low voltage reset function
16-pin DIP/NSOP, 20-pin DIP/SOP,
24/28-pin SKDIP/SOP/SSOP and
32-pin QFN packages
General Description
The HT45R35 is an 8-bit high performance, RISC archi-
tecture microcontroller device specifically designed for
cost-effective multiple I/O control product applications.
wake-up functions, Watchdog Timer, enhance the ver-
satility of these devices to suit a wide range of applica-
tion possibilities such as industrial control, consumer
products, subsystem controllers, etc.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, Power Down and
Rev. 1.30
1
May 14, 2010