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HT45R22E

Holtek Semiconductor
Part Number HT45R22E
Manufacturer Holtek Semiconductor
Description Remote Type 8-bit OTP MCU
Published Jul 1, 2010
Detailed Description www.DataSheet4U.com HT45R22E Remote Type 8-bit OTP MCU with EEPROM Features CPU Features · Operating voltage: · Table r...
Datasheet PDF File HT45R22E PDF File

HT45R22E
HT45R22E

Overview
www.
DataSheet4U.
com HT45R22E Remote Type 8-bit OTP MCU with EEPROM Features CPU Features · Operating voltage: · Table read instructions · 63 powerful instructions · 4-level subroutine nesting · Bit manipulation instruction · Low voltage reset function · 20/24-pin SOP package types fSYS= 4MHz: 2.
2V~3.
6V · Program Memory: 4K´15 · Data Memory: 128´8 · Embedded 1024´8 EEPROM · Up to 1ms instruction cycle with 4MHz system clock at VDD= 3V · Idle/Sleep mode and wake-up functions to reduce Peripheral Features · Up to 22 bidirectional I/O lines · Software controlled 4-SCOM lines LCD COM driver power consumption · Oscillator types: with 1/2 bias · External interrupt input shared with an I/O line · Two 8-bit programmable Timer/Event Counter with External high freuency Crystal -- HXT External RC -- ERC Internal high frequency RC -- HIRC External low frequency crystal -- LXT Internal low frequency RC -- LIRC · Four operational modes: Normal, Slow, Idle, Sleep · Fully integrated internal 4095kHz oscillator requires overflow interrupt and prescaler · Time-Base function · Programmable Frequency Divider - PFD shared with I/O line · Two integrated operational amplifiers with interrupt no external components · Watchdog Timer function · LIRC oscillator function for watchdog timer · All instructions executed in one or two instruction function - one with programmable gain control · Single comparator with interrupt and low power consumption cycles General Description The device is an 8-bit high performance, RISC architecture microcontrollers specifically designed for operational amplifier applications.
The usual Holtek microcontroller features of low power consumption, I/O flexibility, timer functions, oscillator options, internal comparator, internal operational amplifiers, power down and wake-up functions, watchdog timer and low voltage reset, combine to provide the device with a wide range of functional options while still maintaining a high level of cost effectiveness.
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