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AM29F004BB-70JF Folha de dados(PDF) 5 Page - SPANSION

Nome de Peças AM29F004BB-70JF
Descrição Electrónicos  4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory
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May 9, 2006 Am29F004B_00_E4
Am29F004B
3
D A TA
SH EE T
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 7
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . 8
Am29F004B Device Bus Operations ................................................8
Requirements for Reading Array Data ..................................... 8
Writing Commands/Command Sequences .............................. 8
Program and Erase Operation Status ...................................... 8
Standby Mode .......................................................................... 8
Output Disable Mode ................................................................ 9
Am29F004B Top Boot Block Sector Addresses ...............................9
Am29F004B Bottom Boot Block Sector Addresses ..........................9
Autoselect Mode ..................................................................... 10
Am29F004B Autoselect Codes (High Voltage Method) ..................10
Sector Protection/Unprotection ............................................... 10
In-System Sector Protect/Sector Unprotect Algorithms ..................11
Temporary Sector Unprotect .................................................. 12
Temporary Sector Unprotect Operation ..........................................12
Hardware Data Protection ...................................................... 13
Low VCC Write Inhibit ......................................................................13
Write Pulse Glitch Protection ..........................................................13
Logical Inhibit ..................................................................................13
Power-Up Write Inhibit ....................................................................13
Command Definitions . . . . . . . . . . . . . . . . . . . . . . 13
Reading Array Data ................................................................ 13
Reset Command ..................................................................... 13
Autoselect Command Sequence ............................................ 13
Byte Program Command Sequence ....................................... 13
Program Operation ..........................................................................14
Chip Erase Command Sequence ........................................... 14
Sector Erase Command Sequence ........................................ 14
Erase Operation ..............................................................................15
Erase Suspend/Erase Resume Commands ........................... 15
Am29F004B Command Definitions .................................................16
Write Operation Status . . . . . . . . . . . . . . . . . . . . . 17
DQ7: Data# Polling ................................................................. 17
Data# Polling Algorithm ...................................................................17
DQ6: Toggle Bit I .................................................................... 18
DQ2: Toggle Bit II ................................................................... 18
Reading Toggle Bits DQ6/DQ2 ............................................... 18
DQ5: Exceeded Timing Limits ................................................ 18
DQ3: Sector Erase Timer ....................................................... 18
Toggle Bit Algorithm ....................................................................... 19
Write Operation Status ................................................................... 19
Absolute Maximum Ratings . . . . . . . . . . . . . . . . 20
Maximum Negative Overshoot Waveform ..................................... 20
Maximum Positive Overshoot Waveform ....................................... 20
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . 20
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 21
TTL/NMOS Compatible .......................................................... 21
CMOS Compatible .................................................................. 22
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Test Setup ...................................................................................... 23
Test Specifications ......................................................................... 23
Key to Switching Waveforms . . . . . . . . . . . . . . . 23
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 24
Read Operations .................................................................... 24
Read Operations Timings .............................................................. 24
Erase/Program Operations ..................................................... 25
Program Operation Timings ........................................................... 26
Chip/Sector Erase Operation Timings ............................................ 26
Data# Polling Timings (During Embedded Algorithms) .................. 27
Toggle Bit Timings (During Embedded Algorithms) ....................... 27
DQ2 vs. DQ6.................................................................................. 27
Sector Unlock Sequence Timing Diagram ..................................... 28
Sector Relock Timing Diagram ...................................................... 28
Sector Protect/Unprotect Timing Diagram ..................................... 29
Alternate CE# Controlled Erase/Program Operations ............ 30
Alternate CE# Controlled Write Operation Timings ........................ 31
Erase and Programming Performance . . . . . . . 32
Latchup Characteristics . . . . . . . . . . . . . . . . . . . 32
PLCC Pin Capacitance . . . . . . . . . . . . . . . . . . . . 32
Data Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 33
PL 032—32-Pin Plastic Leaded Chip Carrier ......................... 33
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 34


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