EM78P341 datasheet(7/102 Pages) EMC

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EM78P341N/342N/343N

8-Bit Microprocessor with OTP ROM

Product Specification (V1.0) 12.01.2006

• 1

(This specification is subject to change without further notice)

General Description

The EM78P341N, EM78P342N and EM78P343N are 8-bit microprocessors designed and developed with low-power and

high-speed CMOS technology. The series have an on-chip 2K

×13-bit Electrical One Time Programmable Read Only

Memory (OTP-ROM). It provides a protection bit to prevent intrusion of user’s OTP memory code. Three Code option bits

are also available to meet user’s requirements.

With enhanced OTP-ROM features, the EM78P341N, EM78P342N and EM78P343N provide 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

• 2K×13 bits on chip ROM

• 80×8 bits on chip registers (SRAM)

• 8 level stacks for subroutine nesting

• 4 programmable Level Voltage Detector (LVD) :

4.5V, 4.0V, 3.3V, 2.2V

• 4 programmable Level Voltage Reset (LVR) : 4.0V,

3.5V, 2.7V, 1.8V (POR)

• Less than 1.5 mA at 5V/4MHz

• Typically 15 µA, at 3V/32kHz

• Typically 1 µA, during sleep mode

I/O port configuration

• Three bidirectional I/O ports : P5, P6, P7

• 18 I/O pins

• Wake-up port : P5

• 8 Programmable pull-down I/O pins

• 16 programmable pull-high I/O pins

• 8 Programmable open-drain I/O pins

• External interrupt : P60

Operating voltage range:

• Commercial version:

Operating voltage range: 1.9V~5.5V

• Industrial version:

Operating voltage range: 2.1V~5.5V

Operating temperature range: -40~85°C

• Commercial version:

Operating voltage range: 0°C ~ 70°C

• Industrial version:

Operating voltage range: -40°C ~ 85°C

Operating frequency range:

Main clock

• Crystal mode:

DC ~ 20MHz/2clks @ 4V; DC ~16 MHz/2clks @ 3V

DC ~ 4MHz/2clks @ 1.9V

• ERC mode:

DC ~ 4MHz/2clks @ 5V; DC ~ 4MHz/2clks @ 3V

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

• IRC mode:

Oscillation mode : 4MHz, 16MHz, 1MHz, 455kHz

Process deviation : Typ±3%, Max±5%

Temperature deviation : ±10% (-40°C~85°C )

Peripheral configuration

• Easily implemented IR (or infrared remote control)

• 8-bit real time clock/counter (TCC) with selective signal

sources, trigger edges, and overflow interrupt

• 8-bit real time clock/counter (TCCA, TCCC) and 16-bit

real time clock/counter (TCCB) with selective signal

sources, trigger edges, and overflow interrupt

• 8-bit channels Analog-to-Digital Converter with 12-bit

resolution

• One pair of comparators or OP

Seven available interrupts:

• TCC, TCCA, TCCB, TCCC overflow interrupt

• Input-port status changed interrupt (wake-up from

sleep mode)

• External interrupt

• ADC completion interrupt

• IR/PWM interrupt

• Comparator status change interrupt

• Low voltage detect (LVD) interrupt

Special features

• Programmable free running watchdog timer

(4.5ms:18ms)

• Power saving Sleep mode

• Selectable Oscillation mode

• Power-on voltage detector available (1.7 V± 0.1V)

Package type:

• 14-pin DIP 300mil

: EM78P341NP

• 14-pin SOP 150mil

EM78P341NM

• 18-pin DIP 300mil

EM78P342NP

• 18-pin SOP 300mil

EM78P342NM

• 20-pin DIP 300mil

EM78P343NP

• 20-pin SOP 300mil

EM78P343NM

• 20-pin SSOP 209mil

EM78P343NKM

EM78P341 Datasheet(PDF) 7 Page - ELAN Microelectronics Corp

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