N8044AH-R0117 datasheet(9/65 Pages) INNOVASIC

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IA8044/IA8344

Data Sheet

SDLC Communications Controller

March 30, 2010

IA211010112-04

http://www.Innovasic.com

UNCONTROLLED WHEN PRINTED OR COPIED

Customer Support:

Page 9 of 65

1-888-824-4184

Introduction

The Innovasic Semiconductor IA8044 and IA8344 are ―plug-and-play‖ drop-in replacements and

are form, fit, and function compatible parts to the Intel

8044 and 8344 (see Chapter 4,

Innovasic/Intel Part Number Cross-Reference Tables). These devices are produced using

Innovasic’s Managed IC Lifetime Extension System (MILES™). This cloning technology, which

produces replacement ICs beyond simple emulations, ensures complete compatibility with the

original device, including any ―undocumented features.‖ Additionally, the MILES™ process

captures the clone design in such a way that production of the clone can continue even as silicon

technology advances. The IA8044 and IA8344 replace the obsolete Intel 8044 and 8344, allowing

users to retain existing board designs, software compilers/assemblers, and emulation tools—thus

avoiding expensive redesign efforts.

The IA8044 and IA8344 are Fast Single-Chip 8-Bit Microcontrollers with an integrated

SDLC/HDLC serial interface controller. They are fully functional 8-Bit Embedded Controllers

that execute all ASM51 instructions and have the same instruction set as the Intel 80C51. The

IA8044 and IA8344 can access the instructions from two types of program memory, serve

software and hardware interrupts, and provide interface for serial communications and a timer

system. The IA8044 and IA8344 are fully compatible with the Intel

8X44 series.

This data sheet documents all necessary engineering information about the IA8044 and IA8344

including functional and I/O descriptions, electrical characteristics, and applicable timing.

1.1

Features

Form, fit, and function compatible with the Intel 8044 and 8344

Packaging options available in both leaded and RoHS versions:

– 40-Pin Plastic Dual In-Line Package (PDIP) (see IA8044 40-Lead PDIP Package

Diagram)

– 44-Pin Plastic Leaded Chip Carrier (PLCC) (see IA8344 44-Pin PLCC Package

Diagram)

8-bit control unit (see Functional Block Diagram)

8-bit arithmetic-logic unit with 16-bit multiplication and division

12-MHz clock

Four 8-bit input/output ports

Two 16-bit timer/counters

Serial interface unit with SDLC/HDLC compatibility

2.4-Mbps maximum serial data rate

Two-level priority interrupt system

5 interrupt sources

Internal clock prescaler and phase generator

192 bytes of read/write data memory space

64-Kbyte external program memory space

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