28F400BV-TB Datasheet, PDF(1/57 Page) Intel Corporation – 4-MBIT (256K X 16, 512K X 8)SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

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28F400BV-TB Datasheet, PDF (1/57 Pages) Intel Corporation – 4-MBIT (256K X 16, 512K X 8)SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

PRELIMINARY

4-MBIT (256K X 16, 512K X 8)

SmartVoltage BOOT BLOCK FLASH

MEMORY FAMILY

28F400BV-T/B, 28F400CV-T/B, 28F004BV-T/B

28F400CE-T/B, 28F004BE-T/B

n Intel SmartVoltage Technology

ï£§ 5V or 12V Program/Erase

ï£§ 2.7V, 3.3V or 5V Read Operation

ï£§ Increased Programming Throughput

at 12V VPP

n Very High-Performance Read

ï£§ 5V: 60/80/120 ns Max. Access Time,

30/40 ns Max. Output Enable Time

ï£§ 3V: 110/150/180 ns Max Access

65/90 ns Max. Output Enable Time

ï£§ 2.7V: 120 ns Max Access 65 ns Max.

Output Enable Time

n Low Power Consumption

ï£§ Max 60 mA Read Current at 5V

ï£§ Max 30 mA Read Current at

2.7Vâ3.6V

n x8/x16-Selectable Input/Output Bus

ï£§ 28F400 for High Performance 16- or

32-bit CPUs

n x8-Only Input/Output Architecture

ï£§ 28F004B for Space-Constrained

8-bit Applications

n Optimized Array Blocking Architecture

ï£§ One 16-KB Protected Boot Block

ï£§ Two 8-KB Parameter Blocks

ï£§ One 96-KB Main Block

ï£§ Three 128-KB Main Blocks

ï£§ Top or Bottom Boot Locations

n Absolute Hardware-Protection for Boot

Block

n Software EEPROM Emulation with

Parameter Blocks

n Extended Temperature Operation

ï£§ â40Â°C to +85Â°C

n Extended Cycling Capability

ï£§ 100,000 Block Erase Cycles

(Commercial Temperature)

ï£§ 10,000 Block Erase Cycles

(Extended Temperature)

n Automated Word/Byte Program and

Block Erase

ï£§ Industry-Standard Command User

Interface

ï£§ Status Registers

ï£§ Erase Suspend Capability

n SRAM-Compatible Write Interface

n Automatic Power Savings Feature

ï£§ 1 mA Typical ICC Active Current in

Static Operation

n Reset/Deep Power-Down Input

ï£§ 0.2 ÂµA ICCTypical

ï£§ Provides Reset for Boot Operations

n Hardware Data Protection Feature

ï£§ Write Lockout during Power

Transitions

n Industry-Standard Surface Mount

Packaging

ï£§ 40-Lead TSOP

ï£§ 44-Lead PSOP: JEDEC ROM

Compatible

ï£§ 48-Lead TSOP

ï£§ 56-Lead TSOP

n Footprint Upgradeable from 2-Mbit and

to 8-Mbit Boot Block Flash Memories

n ETOXâ¢ IV Flash Technology

July 1997

Order Number: 290530-005

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