2-MBIT (128K X 16/ 256K X 8) SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

E n n n n n ADVANCE INFORMATION A28F200BR-T/B 2-MBIT (128K X 16, 256K X 8) SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY Automotive Intel SmartVoltage Technology  5V or 12V Program/Erase  5V Read Operation Very High Performance Read  80 ns Max. Access Time,  40 ns Max. Output Enable Time Low Power Consumption  Maximum 65 mA Read Current at 5V x8/x16-Selectable Input/Output Bus  High Performance 16- or 32-bit CPUs Optimized Array Blocking Architecture  One 16-KB Protected Boot Block  Two 8-KB Parameter Blocks  One 96-KB Main Block  One 128-KB Main Block  Top or Bottom Boot Locations Hardware-Protection for Boot Block Software EEPROM Emulation with Parameter Blocks Automotive Temperature Operation  -40°C to +125°C Extended Cycling Capability  30,000 Block Erase Cycles for Parameter Blocks  1,000 Block Erase Cycles for Main Blocks n n n n n n n Automated Word/Byte Program and Block Erase  Industry-Standard Command User Interface  Status Registers  Erase Suspend Capability SRAM-Compatible Write Interface Automatic Power Savings Feature  1 mA Typical I CC Active Current in Static Operation Reset/Deep Power-Down Input  0.2 µA ICCTypical  Provides Reset for Boot Operations Hardware Data Protection Feature  Program/Erase Lockout during Power Transitions Industry-Standard Surface Mount Packaging  44-Lead PSOP: JEDEC ROM Compatible ETOX™ IV Flash Technology n n n n April 1997 Order Number: 290542-003 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. The A28F200BR-T/B may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available upon 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 from: Intel Corporation P.O. Box 7641 Mt. Prospect, IL 60056-7641 or call 1-800-879-4683 or visit Intel’s website at http:\www.intel.com COPYRIGHT © INTEL CORPORATION, 1996, 1997 *Third-party brands and names are the property of their respective owners. CG-041493 E CONTENTS PAGE 1.0 PRODUCT FAMILY OVERVIEW.....................5 1.1 New Features in the SmartVoltage Products ...............................5 1.2 Main Features ..............................................5 1.3 Applications..................................................6 1.4 Pinouts.........................................................6 1.5 Pin Descriptions ...........................................8 2.0 PRODUCT DESCRIPTON...............................9 2.1 Memory Organization ...................................9 2.1.1 Boot Block .............................................9 2.1.2 Parameter Blocks ................................10 2.1.3 Main Blocks .........................................10 3.0 PRODUCT FAMILY PRINCIPLES OF OPERATION ................................................10 3.1 Bus Operations ..........................................12 3.2 Read Operations ........................................12 3.2.1 Read Array ..........................................12 3.2.2 Intelligent Identifiers ............................12 3.3 Write Operations ........................................12 3.3.1 Command User Interface.....................12 3.3.2 Status Register....................................15 3.3.3 Program Mode.....................................16 3.3.4 Erase Mode .........................................17 3.4 Boot Block Locking ....................................20 3.4.1 VPP = VIL for Complete Protection .......20 3.4.2 WP# = VIL for Boot Block Locking .......21 3.4.3 RP# = VHH or WP# = VIH for Boot Block Unlocking .........................21 A28F200BR PAGE 3.5 Power Consumption ...................................21 3.5.1 Active Power .......................................21 3.5.2 Automatic Power Savings ....................21 3.5.3 Standby Power ....................................21 3.5.4 Deep Power-Down Mode.....................21 3.6 Power-Up Operation...................................22 3.6.1 RP# Connected to System Reset ........22 3.7 Power Supply Decoupling ..........................22 3.7.1 VPP Trace on Printed Circuit Boards ....22 3.7.2 VCC, VPP and RP# Transitions .............22 4.0 ABSOLUTE MAXIMUM RATINGS ................23 5.0 OPERATING CONDITIONS ..........................24 5.1 VCC Voltage................................................24 5.2 DC Characteristics .....................................25 5.3 AC Characteristics......................................29 APPENDIX A: Ordering Information .................36 APPENDIX B: Additional Information ...............37 ADVANCE INFORMATION 3 A28F200BR E REVISION HISTORY Description Original Version Changed RP# AC Characteristics Changed VLKO to 3.5V Parameter Block Cycling Specification Increased to 30,000 ICCD Specification Increased to 105 µA ICCR Specification Increased to 65 mA tWHAX Specification changed from 10 ns to 0 ns Number -001 -002 -003 4 ADVANCE INFORMATION E 1.0 1.1 A28F200BR operations, 5V VPP operation eliminates the need for in system voltage converters, while 12V VPP operation provides faster program and erase for situations where 12V is available, such as manufacturing or designs where 12V is already available. The 28F200 boot block flash memory family is a very high-performance, 2-Mbit (2,097,152 bit) flash memory family organized as either 256 Kwords (131,072 words) of 16 bits each or 512 Kbytes (262,144 bytes) of 8 bits each. Separately erasable blocks, including a hardwarelockable boot block (16,384 bytes), two parameter blocks (8,192 Bytes each) and main blocks (one block of 98,304 bytes and one block of 131,072 bytes) define the boot block flash family architecture. See Figure 3 for memory maps. Each parameter block can be independently erased and programmed 10,000 times. Each main block can be erased 1,000 times. The boot block is located at either the top (denoted by -T suffix) or the bottom (-B suffix) of the address map in order to accommodate different microprocessor protocols for boot code location. The hardware-lockable boot block provides complete code security for the kernel code required for system initialization. Locking and unlocking of the boot block is controlled by WP# and/or RP# (see Section 3.4 for details). The Command User Interface (CUI) serves as the interface between the microprocessor or microcontroller and the internal operation of the boot block flash memory products. The internal Write State Machine (WSM) automatically executes the algorithms and timings necessary for program and erase operations, including verifications, thereby unburdening the microprocessor or microcontroller of these tasks. The Status Register (SR) indicates the status of the WSM and whether it successfully completed the desired program or erase operation. Program and erase automation allows program and erase operations to be executed using an industry-standard two-write command sequence to the CUI. Data writes are performed in word or byte increments. Each byte or word in the flash memory can be programmed independently of other memory locations, unlike erases, which erase all locations within a block simultaneously. The 4-Mbit SmartVoltage boot block flash memory family is also designed with an Automatic Power 5 PRODUCT FAMILY OVERVIEW This datasheet contains the specifications for the automotive version of the 28F200BR family of boot block flash memory devices. This device continues to offer the same functionality as earlier “BX” devices but adds the capability of performing program and erase operations with a 5V or 12V VPP. The A28F200BR automatically senses which voltage is applied to the VPP pin and adjusts its operation accordingly. New Features in the SmartVoltage Products The new SmartVoltage boot block flash memory family offers identical operation as the current BX/BL 12V program products, except for the differences listed below. All other functions are equivalent to current products, including signatures, write commands, and pinouts. • • WP# pin has replaced a DU pin. See Table 1 for details. 5V program/erase operation has been added that uses proven program and erase techniques with 5V ± 10% applied to VPP. If you are designing with existing BX 12V VPP boot block products today, you should provide the capability in your board design to upgrade to these new SmartVoltage products. Follow these guidelines to ensure compatibilty: 1. Connect WP# (DU on existing products) to a control signal, VCC or GND. 2. If adding a switch on VPP for write protection, switch to GND for complete write protection. 3. Allow for connecting 5V to VPP instead of 12V, if desired. 1.2 Main Features Intel’s SmartVoltage technology provides the most flexible voltage solution in the industry. SmartVoltage provides two discrete voltage supply pins, VCC for read operation, and VPP for program and erase operation. Discrete supply pins allow system designers to use the optimal voltage levels for their design. For program and erase ADVA