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RTS3700B

8-bit MCU Based Generic Integrated System

Features

Operating voltage -- 2.4 ~ 5.0V @ 4M Hz or 3.6

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Directly inter-connect to RTS26x5x(please

reference relative specifications)

Max. 2K bytes display memory

Provides variant display resolution

Supports gray-level and ECB mode display

~ 5.5V @ 8M Hz

Built-in oscillation circuit or external RC

oscillator

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An external 32.768KHz crystal oscillator for

RTC and built-in PLL(phase-locked-loop)

RC oscillator optional

Built-in memory interface for both external

memory (ROM/SRAM/flash memory)

General purpose static RAM (2K Bytes) for both

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CMOS sensor interface(serial interface)

UART (universal asynchronous receiver

transmitter) port

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Baud rate can be up to 57600 BPS

Hardware detects over-run and shift(frame)

error

Battery low detection function

Realtek SME (speech & melody engine)

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PWM output for saving power

Dual tone + four speech channel

Software programmable(4 bits) volume

combination (modes)

Software programmable(4 bits) volume

control that are suitable for variant

impedance speaker.

Power management modes support for power

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Internal Mask ROM (512K Bytes)

LCD memory and working memory

RTC

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Full clock featuring time (second , minute ,

hour) and date

Hardware alarm function

Two general purpose 8-bit timer which can be

cascaded as a 16-bit one

Interrupt control block

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Input port transition

RTC(alarm) interrupt

Timers interrupt

UART

NMI for power failure detection

Input Port: 8

General purpose input/output port (PA): 8

General purpose input/output port or

analog input (PB): 8

Output port:8

LCD driver interface

saving issues

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Programmable system clock (Fosc).

Programmable CPU clock (Fcpu).

Halt mode (MPU = off & LCD = on)

Standby mode (MPU = LCD = off & RTC =

on)

Stop mode (MPU = LCD = RTC = off )

I/O ports (32 pins)

V1.1

2000/11/1

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