E
A28F400BR-T/B
3
ADVANCE INFORMATION
CONTENTS
PAGE
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 DESCRIPTION..............................9
2.1 Memory Blocking
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 ....................................15
3.3.4 Erase Mode.........................................17
3.4 Boot Block Locking ....................................20
3.4.1 V
PP
= V
IL
for Complete Protection .......20
3.4.2 WP# = V
IL
for Boot Block Locking .......21
3.4.3 RP# = V
HH
or WP# = V
IH
for Boot
Block Unlocking..................................21
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 V
PP
Trace on Printed Circuit Boards....22
3.7.2 V
CC
, V
PP
and RP# Transitions.............22
4.0 ABSOLUTE MAXIMUM RATINGS................23
5.0 OPERATING CONDITIONS..........................23
5.1 V
CC
Voltage ...............................................23
5.2 DC Characteristics.....................................23
5.3 AC Characteristics .....................................28
APPENDIX A: Ordering Information.................35
APPENDIX B: Additional Information...............36