TB28F400BVT80

4Mbit 256K X 16, 512K X 8SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY

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.

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