ET8656 microprocessor Datasheet pdf - 8-bit microprocessor. Equivalent, Catalog

General Description

ET8656 is an 8bit microprocessor with lowpower and highspeed CMOS technology. Integrated into a single chip are

onchip watchdog timer (WDT), RAM, ROM, real time clock/counter, external and interrupt, power down mode, and tri

state I/O.

Features

Operating voltage range: 2.3V~5.5V

Operating temperature range: 0℃~70℃

Operating frequency rang (base on 2 clocks ):

Crystal mode: DC~20MHz (5V), DC~8MHz (3V), DC~4MHz (2.3V)

ERC mode: DC~4MHz (5V), DC~4MHz (3V), DC~4MHz (2.3V)

Low power consumption:

Less than 2.0 mA at 5V/4MHz

Typically 15 µA at 3V/32KHz

Typically 1 µA during sleep mode

1K×13 bit on chip ROM

One configuration register to accommodate user’s requirements

48×8 bits on chip registers (SRAM, general purpose register)

2 bidirectional I/O ports

5 level stacks for subroutine nesting

8bit real time clock/counter (TCC) with selective signal sources, trigger edges, and overflow interrupt

Two clock per instruction cycle

Power down (SLEEP mode )

Three available interruptions

TCC overflow interrupt

Inputport status changed interrupt (wake up from sleep mode)

External interrupt

Programmable free running watchdog timer

8 programmable pullhigh pins

7 programmable pulldown pins

8 programmable opendrain pins

2 programmable Roption pins

99.9% single instruction cycle commands

The transient point of system frequency between HXT and LXT is around 400KHz

Package:

DIP18 (ET8656P)

SOP18 (ET8656M)

SSOP20 (ET8656S)

Pin Configuration

8-bit microprocessor. ET8656 Datasheet