21281-CB

更新时间： 2024-01-18 15:44:12

品牌	Logo	应用领域
英特尔 - INTEL		微控制器和处理器外围集成电路微处理器时钟
页数	文件大小	规格书
18页	95K
描述
RISC Microprocessor, 32-Bit, 200MHz, CMOS, PQFP144, TQFP-144

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技术参数
数据手册

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21281-CB 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	LFQFP, QFP144,.87SQ,20	针数：	144
Reach Compliance Code：	compliant	ECCN代码：	3A001.A.3
HTS代码：	8542.31.00.01	风险等级：	5.84
Is Samacsys：	N	地址总线宽度：	32
位大小：	32	边界扫描：	YES
最大时钟频率：	233 MHz	外部数据总线宽度：	32
格式：	FIXED POINT	集成缓存：	NO
JESD-30 代码：	S-PQFP-G144	长度：	20 mm
低功率模式：	YES	端子数量：	144
最高工作温度：	60 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装等效代码：	QFP144,.87SQ,20	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE, FINE PITCH	电源：	2,3.3 V
认证状态：	Not Qualified	座面最大高度：	1.7 mm
速度：	233 MHz	子类别：	Microprocessors
最大供电电压：	1.815 V	最小供电电压：	1.9 V
标称供电电压：	2 V	表面贴装：	YES
技术：	CMOS	温度等级：	COMMERCIAL
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	宽度：	20 mm
uPs/uCs/外围集成电路类型：	MICROPROCESSOR, RISC	Base Number Matches：	1

21281-CB 数据手册

Revision History

Date

Version

Description

03/30/99

003

Under Indentification Information, changed markings; added 21281FB.

Under Affected Documents/Related Documents, changed the StrongARM**

SA-110 Power Dissipation and Thermal Characteristics Application Note.

1/22/99

07/14/98

06/15/98

002

001

Product line order number sequence change, from 280104-001 to 278104-001.

Under Affected Documents/Related Documents, changed order # to show change

to Intel order #.

This is the new Specification Update document. It contains all identified errata

published prior to this date.

SA-110 Specification Update

Preface

As of July, 1996, Intel’s Computing Enhancement Group has consolidated available historical

device and documentation errata into this new document type called the Specification Update. We

have endeavored to include all documented errata in the consolidation process, however, we make

no representations or warranties concerning the completeness of the Specification Update.

This document is an update to the specifications contained in the Affected Documents/Related

Documents table below. This document is a compilation of device and documentation errata,

specification clarifications and changes. It is intended for hardware system manufacturers and

software developers of applications, operating systems, or tools.

Information types defined in Nomenclature are consolidated into the specification update and are

no longer published in other documents.

This document may also contain information that was not previously published.

Affected Documents/Related Documents

Title

Order #

SA-110 Microprocessor Technical Reference Manual

278058-001

278230-003

278192-001

Intel StrongARM SA-110 Microprocessor Brief Datasheet

StrongARM** SA-110 Power Dissipation and Thermal Characteristics Application Note

SA-110 Specification Update

Preface

Nomenclature

Errata are design defects or errors. These may cause the published (component, board, system)

behavior to deviate from published specifications. Hardware and software designed to be used with

any component, board, and system must consider all errata documented.

Specification Changes are modifications to the current published specifications. These changes

will be incorporated in any new release of the specification.

Specification Clarifications describe a specification in greater detail or further highlight a

specification’s impact to a complex design situation. These clarifications will be incorporated in

any new release of the specification.

Documentation Changes include typos, errors, or omissions from the current published

specifications. These will be incorporated in any new release of the specification.

Note: Errata remain in the specification update throughout the product’s lifecycle, or until a particular

stepping is no longer commercially available. Under these circumstances, errata removed from the

specification update are archived and available upon request. Specification changes, specification

clarifications and documentation changes are removed from the specification update when the

appropriate changes are made to the appropriate product specification or user documentation

(datasheets, manuals, etc.).

SA-110 Specification Update

Summary Table of Changes

The following table indicates the errata, specification changes, specification clarifications, or

documentation changes which apply to the Product Name product. Intel may fix some of the errata

in a future stepping of the component, and account for the other outstanding issues through

documentation or specification changes as noted. This table uses the following notations:

Codes Used in Summary Table

Stepping

Errata exists in the stepping indicated. Specification Change or

Clarification that applies to this stepping.

(No mark)

or (Blank box):

This erratum is fixed in listed stepping or specification change does not

apply to listed stepping.

Page

(Page):

Page location of item in this document.

Status

Doc:

Document change or update will be implemented.

This erratum is intended to be fixed in a future step of the component.

This erratum has been previously fixed.

Fix:

Fixed:

NoFix:

Eval:

There are no plans to fix this erratum.

Plans to fix this erratum are under evaluation.

Row

Change bar to left of table row indicates this erratum is either new or

modified from the previous version of the document.

SA-110 Specification Update

Summary Table of Changes

Errata

Steppings

No.

Page

Status

ERRATA

Potential Data Abort Occurs in Some

Demand-Paged Memory-Management Schemes

Fix

Specification Changes

Steppings

No.

Page

Status

SPECIFICATION CHANGES

None for this revision of this specification update.

Specification Clarifications

Steppings

No.

Page

Status

SPECIFICATION CLARIFICATIONS

None for this revision of this specification update.

Documentation Changes

No.

Document Revision

Page

Status

DOCUMENTATION CHANGES

278192-001

Doc

Thermal Limits on Power Consumption: Section 4.0

Ambient Temperature: Section 4.3

SA-110 Specification Update

Identification Information

Markings

21281BB, 21281AB, 21281DB, 21281CB, 21281EB, and 21281FB.

• This document contains errata for the SA-110 Microprocessor. The SA-110 device revision

that is affected by this errata can be identified as order numbers 21281BB, 21281AB,

21281DB, 21281CB, 21281EB and 21281FB.

Markings

Speed (MHz)

Voltage (V)

Package

21281BB

21281AB

21281DB

21281CB

21281EB

21281FB

100

160

166

200

233

1.65

2.0

TQFP

2.0

03/30/99

Changed 21281-AA to 21281AB, 21281-BA to 21281BB, 21281-CA to 21281CB,

21281-DA to 21281DB, and 21281-EA to 21281EB. Added 21281FB.

SA-110 Specification Update

Related Information

None for this revision of this specification update.

SA-110 Specification Update

Errata

Potential Data Abort Occurs in Some Demand-Paged Memory-Management

Schemes

Problem:

There is an anomaly in the SA-110 device that may occur during a DATA_ABORT in environ-

ments that use demand-paged memory-management schemes. This problem has been seen only in

demand-page memory-management operating systems when a memory access crosses a page

boundary from a mapped page to an unmapped page during the sequence of data fetches.

Designs using operating systems with demand-page memory management schemes are susceptible

to this problem. Designs using operating systems without demand-page memory management

schemes are not susceptible to this problem.

C-EXECUTIVE*

Helios*

Epoch32

Java* OS

Newton OS

pSOS

Kadak

Precise/MQX*

RTXC

Wind River

Check with your RTOS vendor to verify the method of memory-management scheme used to

determine if your design is susceptible to this problem.

Implication:

The Rn register may be incorrectly updated when a DATA_ABORT occurs during a load multiple

registers, increment before (LDMIB) instruction. There is no known way to reliably replay the

instruction after the data abort condition is corrected.

Problem conditions are:

1. The register list to be updated includes the base address register Rn.

LDMIB Rn, {register list including Rn}

2. The LDMIB causes a data abort.

3. At least one register is loaded successfully prior to the abort.

Rn = Rn + 4 (original value +4)

If the abort occurs with no register loaded, Rn = Rn (the correct value).

If the instruction takes a DATA_ABORT after the first load completes successfully, the SA-110

incorrectly restores the base address register to base + 4. If the abort occurs immediately, the base

address register is left at the correct value.

If a DATA_ABORT returns Rn with a value of Page_Boundary_Address (PBA) minus 4, it is unclear

if the address is correct or if the correct address is PBA-8 with at least one register updated.

In actual operation, no code streams or data fetches are expected to DATA_ABORT at runtime

(that is, any active process is fully mapped at runtime).

SA-110 Specification Update

Errata

Workaround: None is required for operating systems that do not use demand-paged memory-management schemes.

For operating systems that are susceptible to this problem, a revision of the SA-110 device

intended to be fully backward-compatible and to correct this problem has been developed. The

following table list the SA-110 devices and their old and new part numbers. The new parts are

available now:

Device

Old Part Number

New Part Number

SA-110-110 MHz

SA-110-160 MHz

SA-110-166 MHz

SA-110-200 MHz

SA-110-233 MHz

21281-BA

21281-AA

21281-DA

21281-CA

21281-EA

21281BB

21281AB

21281DB

21281CB

21281EB

Status:

Fix. Refer to Summary Table of Changes to determine the affected stepping(s).

SA-110 Specification Update

Specification Changes

None for this revision of this specification update.

SA-110 Specification Update

Specification Clarifications

None for this revision of this specification update.

SA-110 Specification Update

Documentation Changes

Thermal Limits on Power Consumption: Section 4.0

In section 4.0 of the StrongARM** SA-110 Power Dissipation and Thermal Characteristics Application Note,

reworded the second paragraph. The second paragraph now appears as follows:

In typical applications, 100°C Tj maximum equates to a maximum ambient temperature of 70°C.

However, exceptions exist where the following procedure is provided to calculate precise system

requirements. In all cases, exceeding 100°C Tj voids product warranty.

Ambient Temperature: Section 4.3

In section 4.3 of the StrongARM** SA-110 Power Dissipation and Thermal Characteristics Application Note,

changed the wording of the caution notice. The caution notice now appears as follows:

Caution: Higher CPU speeds, bus speeds, and pin loads increase the power, and some

combination of these factors might require ambient temperatures below 70°C.

SA-110 Specification Update

Support, Products, and Documentation

If you need general information or support, call 1-800-628-8686 or visit Intel’s website at:

http://www.intel.com

Copies of documents that have an ordering number and are referenced in this document, a product

catalog, or other Intel literature may be obtained by calling 1-800-548-4725 or by visiting Intel’s

website for developers at:

http://developer.intel.com

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与21281-CB相关器件

型号	品牌	描述	获取价格	数据表
21281-DA	INTEL	RISC Microprocessor, 32-Bit, 166MHz, CMOS, PQFP144, TQFP-144	获取价格
21281DB	INTEL	IntelÂ® StrongARMÂ® SA-110 Microprocessor	获取价格
21281-DB	INTEL	暂无描述	获取价格
21281EB	INTEL	IntelÂ® StrongARMÂ® SA-110 Microprocessor	获取价格
21281-EB	INTEL	RISC Microprocessor, 32-Bit, 233MHz, CMOS, PQFP144, TQFP-144	获取价格
21281FB	INTEL	IntelÂ® StrongARMÂ® SA-110 Microprocessor	获取价格