Datasheet > HT45R22E

HT45R22E

更新时间： 2022-12-18 00:52:45

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		遥控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
72页	409K
描述
Remote Type 8-bit OTP MCU with EEPROM

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HT45R22E 数据手册

HT45R22E

Remote Type 8-bit OTP MCU with EEPROM

Features

CPU Features

Table read instructions

63 powerful instructions

Operating voltage:

_SYS= 4MHz: 2.2V~3.6V

4-level subroutine nesting

Bit manipulation instruction

Low voltage reset function

20/24-pin SOP package types

Program Memory: 4K´15

Data Memory: 128´8

Embedded 1024´8 EEPROM

Up to 1ms instruction cycle with 4MHz system clock

Peripheral Features

at V_DD= 3V

Up to 22 bidirectional I/O lines

Idle/Sleep mode and wake-up functions to reduce

power consumption

Software controlled 4-SCOM lines LCD COM driver

with 1/2 bias

Oscillator types:

External interrupt input shared with an I/O line

External high freuency Crystal -- HXT

External RC -- ERC

Two 8-bit programmable Timer/Event Counter with

Internal high frequency RC -- HIRC

External low frequency crystal -- LXT

Internal low frequency RC -- LIRC

overflow interrupt and prescaler

Time-Base function

Programmable Frequency Divider - PFD shared

Four operational modes: Normal, Slow, Idle, Sleep

with I/O line

Fully integrated internal 4095kHz oscillator requires

no external components

Two integrated operational amplifiers with interrupt

function - one with programmable gain control

Watchdog Timer function

Single comparator with interrupt and low power

LIRC oscillator function for watchdog timer

consumption

All instructions executed in one or two instruction

cycles

General Description

The device is an 8-bit high performance, RISC architec-

ture microcontrollers specifically designed for opera-

tional 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. The fully integrated system oscil-

lator HIRC, which requires no external components and

which has three frequency selections, opens up a huge

range of new application possibilities for this device,

some of which may include remote control appliances,

car reversing systems, level meters, consumer prod-

ucts, household appliances subsystem controllers, etc.

Rev. 1.00

March 17, 2010

12 3 4 5 6 7...72

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