21152AB S21152BB - Datasheet Archive

 

Differences Application Note April 2001 Order Number: 278329-004 Information in this document is provided in connection with

 

21152AB 21152AB and S21152BB S21152BB Differences Application Note April 2001 Order Number: 278329-004 Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The 21152 may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800548-4725 or by visiting Intel's website at http://www.intel.com. Copyright © Intel Corporation, 2001 Intel is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other countries. *Other brands and names are the property of their respective owners. Application Note 21152AB 21152AB and S21152BB S21152BB Differences Contents 1.0 Introduction. 5 2.0 Stepping Differences . 5 3.0 Additional Differences .5 Figures None Tables 1 2 Application Note Circuit Design Changes from 21152AB 21152AB to S21152BB S21152BB Migration. 5 160 Metric Quad Mechanical Drawing Specifications, Package Type Lead Count.6 3 21152AB 21152AB and S21152BB S21152BB Differences 1.0 Introduction This document describes the differences between the 21152AB 21152AB and the S21152BB S21152BB. The 21152AB 21152AB PCI-to-PCI Bridge integrated circuit was a legacy custom design produced in Digitial Equipment Corporation.5 micron CMOS technology. The S21152BB S21152BB replaces the 21152AB 21152AB. The S21152BB S21152BB integrated circuit is an ASIC design using an Intel® 0.35 micron CMOS process and its associated cell library. The S21152BB S21152BB represents a complete re-layout of the original product. The pin out, however, is backwards-compatible with the 21152AB 21152AB. 2.0 Stepping Differences Table 1 summarizes circuit design changes between the 21152AB 21152AB and the S21152BB S21152BB Table 1. Circuit Design Changes from 21152AB 21152AB to S21152BB S21152BB Migration Item 21152AB 21152AB S21152BB S21152BB Comment Vendor ID 1011 hex 8086 hex Change Vendor ID from Digital to Intel. Device ID 0024 hex B152 hex Change to Intel format. Revision ID 05 hex 00 hex Logo Digital Intel a. 3.0 Incorporate into the physical layout of this design. Add a 50 to 100 ohm poly resistor in series with an internal bias scheme. Power Sequencing Errata Fixa Reset Revision ID to 0 due to the Device ID change. Reserved Field Power management fix. The reserved bit in the Power Management Capabilities Register had the incorrect value. Reserved Field 100b The 3- or 5-volt supplies can be powered up in any sequence. 000b See 21152 PCI-to-PCI Bridge Specification Update, March, 2000 Additional Differences · Package -Intel's standard 160-Metric Quad Flat Pack package is introduced for the S21152BB S21152BB. The 21152AB 21152AB remains in the previous 160-mQFP. The dimensional differences are listed in Table 2. Table 2. 160 Metric Quad Mechanical Drawing Specifications, Package Type Lead Count Dimensions (mm) Lead Form 21152AB 21152AB 1.6 BSC S21152BB S21152BB 1.3 Stand Off 0.33 0.33 Package Body Size 28x28 BSC 28x28 Lead Pitch 0.65 BSC 0.65 BSC Application Note 5 21152AB 21152AB and S21152BB S21152BB Differences Table 2. 160 Metric Quad Mechanical Drawing Specifications, Package Type Lead Count Dimensions (mm) 21152AB 21152AB S21152BB S21152BB Lead Width 0.30 0.32 Overall Height 3.70 3.70 Package Body Thickness 3.20 3.29 Foot Length 0.88 0.65 Foot Print X 31.20 30.60 Foot Print Y 31.20 30.60 Lead Frame Etched CuC7025 Etched CuC7025 · The package marking has changed. The product number changed from 21152AB 21152AB to S21152BB S21152BB. The pin 1 designator appears in the lower left for the S21152BB S21152BB. The pin 1 designator for the 21152AB 21152AB placed the pin 1 designator in the upper left. · The S21152BB S21152BB design is pin-to-pin compatible with the 21152AB 21152AB design. System validation testing by customers is recommended because of the process technology change described in the Introduction of this document. · The S21152BB S21152BB has new ESD circuits. The qualification requirement for FLQ is 2000V minimum for HBM and 1000V minimum robustness for CDM. The S21152BB S21152BB meets the FLQ requirements with margin. Note: For more information about these requirements, see the Intel® S21152BB S21152BB PCI-to-PCI Bridge Customer Full Qualification Report, 01/27/00, Rev 0.1. · The requirement for power sequencing has been removed from the S21152BB S21152BB. The 3.3- or 5volt supplies can be powered up in any sequence. · The S21152BB S21152BB meets the worst-case timing numbers for the 21152AB 21152AB with greater margin. 6 Application Note