EM78P311N datasheet(5/68 Pages) EMC

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EM78P311N

8-Bit Microcontroller

Product Specification (V1.0) 10.02.2006

• 1

(This specification is subject to change without further notice)

General Description

The EM78P311N is an 8-bit microprocessor with low-power, high-speed CMOS technology and high noise immunity. It

has an on-chip 2K×13-bits Electrical One Time Programmable Read Only Memory (OTP-ROM).

It provides

multi-protection bits

to prevent intrusion of user’s OTP memory codes. Seven Option bits are also available to meet

user’s requirements. With its OTP-ROM feature, the EM78P311N provides a convenient way of developing and verifying

user’s programs. Moreover, this OTP device offers the advantages of easy and effective program updates, using

development and programming tools. User can avail of the ELAN Writer to easily program his development code.

Features

CPU configuration

×13 bits on-chip ROM

×8 bits on-chip registers (SRAM)

8-level stacks for subroutine nesting

Less than 3.5mA at 5V/8MHz

Typically 0.8

μA, during sleep mode

Typically 1.1

μA, during idle mode

I/O port configuration

4 bidirectional I/O ports : P6, P7, P8, P9

22 I/O pins

10 Programmable pull-down I/O pins

10 programmable pull-high I/O pins

External interrupt : P60, P61, P73, P80

Operating voltage range:

OTP version

Operating voltage range

:2.5v~5.5v

Operating temperature range:

-40~85°C

Operating frequency range:

Main clock

• Crystal mode:

DC ~ 20MHz/2clks @ 5V; DC ~100ns inst. cycle @ 5V

DC ~ 8MHz/2clks @ 3V;DC ~ 250ns inst. cycle @ 3V

• ERC mode:

DC ~ 16MHz/2clks @ 5V;DC ~ 125ns inst. cycle @ 5V

DC ~ 8MHz/2clks @ 3V;DC ~ 250ns inst. cycle @ 3V

Peripheral configuration

Serial peripheral interface (SPI) available

Universal asynchronous receiver transmitter interface

(UART)available

16 bits Counter/Timer

TC2: Timer/Counter/Window

8 bits Timer/Counter

TCC: 8-bit real time clock/counter with overflow

interrupt

TC3: Timer/Counter/Capture

TC4: Timer/Counter/ PWM (pulse width

modulation)/PDO (Programmable divider output)

8-bit channels Analog-to-Digital Converter with 10-bit

resolution

Time Base Timer:(1Hz~16kHz at 8MHz)

Key tone output:(1kHz~8kHz at 8MHz)

8-bit channels Analog-to-Digital Converter with 10-bit

resolution

Fifteen available interruptions:

WDT time-out interrupt

TCC overflow interrupt

Time base timer interrupt(the first falling edge of the

source clock)

Serial UART transmit interrupt

Serial UART receive interrupt

Serial UART receive error interrupt

Four External interrupt

ADC completion interrupt

TC2 overflow interrupt

TC3 overflow interrupt

TC4 overflow interrupt

Serial SPI interrupt

Special features

Programmable free running watchdog timer

Two clocks per instruction cycle

Power on Reset

High noise immunity

Power saving Sleep mode

Selectable Oscillation mode

Package type:

28-pin DIP 600 mil: EM78P311NP

28-pin Skinny DIP 300 mil: EM78P311NAK

28-pin Skinny DIP 400 mil: EM78P311N

28-pin SOP 300 mil: EM78P311NM

28-pin SSOP 209 mil: EM78P311NS

Pin Assignment

(ACLK) OSCO

OSCI

TEST

(AD0) P90

(AD1) P91

(AD2) P92

(AD3) P93

(AD4) P94

(AD5) P95

(AD6) P96

(AD7/VREF) P97

(TC3, INT3) P80

(TC4, /PWM, /PDO) P81

VSS

P70 (/SCK)

P71(RX,SI)

P72 (TX,SO)

P73 (/SLEEP, /INT5)

P60 (/INT0)

P61 (INT1)

P62 (TC2)

P63 (/TONE)

P64 (/SS)(OEB)

P65 (PGMB)

P66 (DATAIN)

P67 (DINCK)

/RESET (VPP)

VDD

EM78P311N

Fig. 3- Pin Assignment

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