●PRODUCT FAMILY OVERVIEW
●This datasheet contains the specifications for the two branches of products in the SmartVoltage 4-Mbit boot block flash memory family: the -BE/CE suffix products feature a low VCCoperating range of 2.7V–3.6V; the -BV/CV suffix products offer 3.0V–3.6V operation. Both BE/CE and BV/CV products also operate at 5V for high-speed access times. Throughout this datasheet, the 28F400 refers to all x8/x16 4-Mbit products, while 28F004B refers to all x8 4-Mbit boot block products. Also, the term “2.7V” generally refers to the full voltage range 2.7V–3.6V.
●Intel SmartVoltage Technology
●5V or 12V Program/Erase
●2.7V, 3.3V or 5V Read Operation
●Increased Programming Throughput at 12V VPP
●Very High-Performance Read
●5V: 60/80/120 ns Max. Access Time, 30/40 ns Max. Output Enable Time
●3V: 110/150/180 ns Max Access 65/90 ns Max. Output Enable Time
●2.7V: 120 ns Max Access 65 ns Max. Output Enable Time
●Low Power Consumption
●Max 60 mA Read Current at 5V
●Max 30 mA Read Current at 2.7V–3.6V
●x8/x16-Selectable Input/Output Bus
●28F400 for High Performance 16- or 32-bit CPUs
●x8-Only Input/Output Architecture
●28F004B for Space-Constrained 8-bit Applications
●Optimized Array Blocking Architecture
●One 16-KB Protected Boot Block
●Two 8-KB Parameter Blocks
●One 96-KB Main Block
●Three 128-KB Main Blocks
●Top or Bottom Boot Locations
●Absolute Hardware-Protection for Boot Block
●Software EEPROM Emulation with Parameter Blocks
●Extended Temperature Operation
●–40°C to +85°C
●Extended Cycling Capability
●100,000 Block Erase Cycles (Commercial Temperature)
●10,000 Block Erase Cycles (Extended Temperature)
●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 ICCActive Current in Static Operation
●Reset/Deep Power-Down Input
●0.2 µA ICCTypical
●Provides Reset for Boot Operations
●Hardware Data Protection Feature
●Write Lockout during Power Transitions
●Industry-Standard Surface Mount Packaging
●40-Lead TSOP
●44-Lead PSOP: JEDEC ROM Compatible
●48-Lead TSOP
●56-Lead TSOP
●Footprint Upgradeable from 2-Mbit and to 8-Mbit Boot Block Flash Memories
●ETOX™ IV Flash Technology
