EM78860H, EM78870, EM78870H Selling Leads, Datasheet
MFG:EMC D/C:N/A
EM78860H, EM78870, EM78870H Datasheet download
Part Number: EM78860H
MFG: EMC
Package Cooled:
D/C: N/A
EM78860H, EM78870, EM78870H
- Table of contents:
Info of EM78860H
Info of EM78870
Info of EM78870H
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About EM78860H
PDF/DataSheet Download
Datasheet: EM78860H
File Size: 196510 KB
Manufacturer: EMC [ELAN Microelectronics Corp]
Download : Click here to Download
About EM78870
PDF/DataSheet Download
Datasheet: EM78870
File Size: 49878 KB
Manufacturer: EMC [ELAN Microelectronics Corp]
Download : Click here to Download
About EM73201
PDF/DataSheet Download
Datasheet: EM73201
File Size: 209731 KB
Manufacturer: EMC [ELAN Microelectronics Corp]
Download : Click here to Download
EM78870 General Description
The EM78870 is an 8-bit RISC type microprocessor with low power, high speed CMOS technology. Integrated onto a single chip are on_chip watchdog (WDT), RAM, ROM, programmable real time clock /counter, internal interrupt, power down mode, LCD driver, build-in KEY TONE clock generation, Programming Tone generators, Serial Peripheral Interface(SPI), comparator and tri-state I/O. The EM78870 provides a single chip solution to design a message_display.
EM78870 Features
•Operating voltage range : 2.2V~5.5V(Normal mode), 2.0V~5.5V(Green mode)
•32K× 13 on chip Program ROM
•2.5K× 8 on chip data RAM
•144 byte working register
•Up to 51 bi-directional tri-state I/O ports (32 shared with LCD Segment pins)
•IO with internal Pull high, wake-up and interrupt functions
•STACK: 32 level stack for subroutine nesting
•TCC: 8-bit real time clock/counter (TCC) with 8-bit prescaler
•COUNTER1: 8-bit counter with 8-bit prescaler can be an interrupt source
•COUNTER2: 8-bit counter with 8-bit prescaler can be an interrupt source
•Watch Dog : Programmable free running on chip watchdog timer
•12 interrupt source : 8 external , 4 internal
•Key Scan : Port key scan function up to 16x4 keys
•Sub-Clock: 32.768kHz crystal
•Main-clock: 3.5826MHz multiplied by 0.25, 0.5, 1 or 3 generated by internal PLL
•Key tone output (shared with IO) : 4kHz, 2kHz, 1kHz
•Comparator: 3-channel comparators, internal (16 level) or external reference voltage (shared with IO)
•Serial Peripheral Interface (SPI) : Interrupt flag available for the read buffer full, Programmable baud rates of communication, Three-wire synchronous communication. (shared with IO)
•32K× 13 on chip Program ROM
•2.5K× 8 on chip data RAM
•144 byte working register
•Up to 51 bi-directional tri-state I/O ports (32 shared with LCD Segment pins)
•IO with internal Pull high, wake-up and interrupt functions
•STACK: 32 level stack for subroutine nesting
•TCC: 8-bit real time clock/counter (TCC) with 8-bit prescaler
•COUNTER1: 8-bit counter with 8-bit prescaler can be an interrupt source
•COUNTER2: 8-bit counter with 8-bit prescaler can be an interrupt source
•Watch Dog : Programmable free running on chip watchdog timer
•12 interrupt source : 8 external , 4 internal
•Key Scan : Port key scan function up to 16x4 keys
•Sub-Clock: 32.768kHz crystal
•Main-clock: 3.5826MHz multiplied by 0.25, 0.5, 1 or 3 generated by internal PLL
•Key tone output (shared with IO) : 4kHz, 2kHz, 1kHz
•Comparator: 3-channel comparators, internal (16 level) or external reference voltage (shared with IO)
•Serial Peripheral Interface (SPI) : Interrupt flag available for the read buffer full, Programmable baud rates of communication, Three-wire synchronous communication. (shared with IO)
EM78870 Typical Application
Cordless phones or any telephone product with large LCD needed
EM78870 Connection Diagram
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