EM78P809N datasheet(5/75 Pages) EMC

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EM78P809N

8-Bit Microcontroller

Product Specification (V1.0) 07.26.2005

• 1

(This specification is subject to change without further notice)

General Description

The EM78P809N is an 8-bit microprocessor with low-power, high-speed CMOS

technology and high noise immunity. It has a built-in 8K×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 EM78P809N is able to offer a convenient way of

developing and verifying user’s programs. Moreover, user can take advantage of

ELAN Writer to easily program his development code.

Features

2.1 CPU

Operating voltage: 2.5V~5.5V

Operating temperature range: -40

°C~85°C

Operating frequency range (base on 2 clocks)

Crystal mode: 1MHz ~ 8MHz at 4.5V, 1MHz ~ 4MHz at 2.5V

RC mode: 1MHz ~ 4MHz at 2.5V

Low power consumption:

Typically 0.8

µA, during sleep mode

× 13 bits on-chip ROM

Multi-security bits to prevent intrusion of OTP memory codes

One configuration register accommodates user’s requirements

144

× 8 bits on-chip registers (SRAM, general purpose register)

4 bi-directional I/O ports (22 pins)

High sink current output pin: 14 pins

10 programmable pull high I/O pins

10 programmable pull low I/O pins

8 level stacks for subroutine nesting

High performance MCU: Two clocks per instruction cycle

15 interrupts (External: 4, Internal: 11)

Programmable free running watchdog timer

EM78P809N Datasheet(PDF) 5 Page - ELAN Microelectronics Corp