EM78P258NN datasheet(7/81 Pages) EMC

7 / 81 page

EM78P258N

8-Bit Microprocessor with OTP ROM

Product Specification (V1.0) 06.16.2005

• 1

(This specification is subject to change without further notice)

General Description

EM78P258N are 8-bit microprocessors designed and developed with low-power and

high-speed CMOS technology. It is equipped with a 2K*13-bit Electrical One Time

Programmable Read Only Memory (OTP-ROM). With its OTP-ROM feature, it is able

to offer a convenient way of developing and verifying your programs. Moreover, it

provides a protect bit to guard against code intrusion, as well as 3 Code Option words

to accommodate your requirements. Furthermore you can take advantage of ELAN

Writer to easily write your development code into the EM78P258N.

Features

Operating voltage range:2.3V~5.5V

base on 0

°C ~ 70°C (commercial)

2.5V~5.5V

base on –40

°C ~ 85°C (industrial)

Operating frequency range (base on 2 clocks):

• Crystal mode:DC ~ 20MHz/2clks, 5V; DC ~ 8MHz/2clks, 3V

• RC mode: DC ~ 4MHz/2clks, 5V; DC ~ 4MHz/2clks, 3V

Low power consumption:

• Less than 1.9 mA at 5V/4MHz

• Typically 15 µA, at 3V/32KHz

• Typically 1 µA, during sleep mode

Built-in RC oscillator 4MHz, 8MHz,1MHz, 455KHz (auto calibration)

Programmable WDT time (4.5ms:18ms)

Independent Programmable prescaler of WDT

One configuration register to match your requirements, and user’s ID code for

customer use is provided

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

× 13 on chip ROM

Bi-directional I/O ports

8-level stacks for subroutine nesting

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

4-bit multi-channel Analog-to-Digital Converter with 12-bit resolution

Easy-implemented IR (Infrared remote control) application circuit

EM78P258NN Datasheet(PDF) 7 Page - ELAN Microelectronics Corp

EM78P258NN Datasheet(HTML) 7 Page - ELAN Microelectronics Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81

Datasheet Download

Link URL