AM29LV800BB-120EC Просмотр технического описания (PDF) - Advanced Micro Devices

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AM29LV800BB-120EC

8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

Advanced Micro Devices 

TABLE OF CONTENTS

Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 6

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . 7

Special Handling Instructions for FBGA Package .. 9

Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Ordering Information . . . . . . . . . . . . . . . . . . . . . . 10

Standard Products ................................................ 10

Device Bus Operations . . . . . . . . . . . . . . . . . . . . . 11

Table 1. Am29LV800B Device Bus Operations ..........11

Word/Byte Configuration ...................................... 11

Requirements for Reading Array Data ................. 11

Writing Commands/Command Sequences .......... 11

Program and Erase Operation Status .................. 12

Standby Mode ...................................................... 12

Automatic Sleep Mode ......................................... 12

RESET#: Hardware Reset Pin ............................. 12

Output Disable Mode ............................................ 12

Table 2. Am29LV800BT Top Boot Block

Sector Addresses ........................................................13

Table 3. Am29LV800BB Bottom Boot Block

Sector Addresses ........................................................13

Autoselect Mode ................................................... 14

Table 4. Am29LV800B Autoselect Codes

(High Voltage Method) ................................................14

Sector Protection/Unprotection ............................ 14

Temporary Sector Unprotect ................................ 14

Figure 1. Temporary Sector Unprotect Operation....... 15

Figure 2. In-System Sector Protect/

Sector Unprotect Algorithms ....................................... 16

Hardware Data Protection .................................... 17

Command Definitions . . . . . . . . . . . . . . . . . . . . . 17

Reading Array Data .............................................. 17

Reset Command .................................................. 17

Autoselect Command Sequence .......................... 17

Word/Byte Program Command Sequence ........... 18

Figure 3. Program Operation ...................................... 18

Chip Erase Command Sequence ......................... 19

Sector Erase Command Sequence ...................... 19

Erase Suspend/Erase Resume Commands ......... 19

Figure 4. Erase Operation........................................... 20

Table 1. Am29LV800B Command Definitions .............21

Write Operation Status . . . . . . . . . . . . . . . . . . . . 22

DQ7: Data# Polling ............................................... 22

Figure 5. Data# Polling Algorithm ............................... 22

RY/BY#: Ready/Busy# ......................................... 22

DQ6: Toggle Bit I .................................................. 23

DQ2: Toggle Bit II ................................................. 23

Reading Toggle Bits DQ6/DQ2 ............................ 23

DQ5: Exceeded Timing Limits .............................. 23

Figure 6. Toggle Bit Algorithm..................................... 24

DQ3: Sector Erase Timer ..................................... 24

Table 2. Write Operation Status ..................................25

Absolute Maximum Ratings . . . . . . . . . . . . . . . . 26

Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 26

DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 27

CMOS Compatible ............................................... 27

Figure 9. ICC1 Current vs. Time (Showing Active and

Automatic Sleep Currents) .......................................... 28

Figure 10. Typical ICC1 vs. Frequency ........................ 28

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 11. Test Setup.................................................. 29

Table 3. Test Specifications ........................................29

Key to Switching Waveforms. . . . . . . . . . . . . . . . 29

Figure 12. Input Waveforms and

Measurement Levels ................................................... 29

AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 30

Read Operations .................................................. 30

Figure 13. Read Operations Timings .......................... 30

Hardware Reset (RESET#) .................................. 31

Figure 14. RESET# Timings........................................ 31

Word/Byte Configuration (BYTE#) ..................... 32

Figure 15. BYTE# Timings for Read Operations......... 32

Figure 16. BYTE# Timings for Write Operations ......... 32

Erase/Program Operations ................................... 33

Figure 17. Program Operation Timings ....................... 34

Figure 18. Chip/Sector Erase Operation Timings........ 35

Figure 19. Data# Polling Timings (During

Embedded Algorithms)................................................ 36

Figure 20. Toggle Bit Timings (During

Embedded Algorithms)................................................ 36

Figure 21. DQ2 vs. DQ6.............................................. 37

Temporary Sector Unprotect ................................ 37

Figure 22. Temporary Sector Unprotect

Timing Diagram ........................................................... 37

Figure 23. Sector Protect/Unprotect

Timing Diagram ........................................................... 38

Alternate CE# Controlled Erase/Program Operations

39

Figure 24. Alternate CE# Controlled Write

Operation Timings ....................................................... 40

Erase and Programming Performance . . . . . . . 41

Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 41

TSOP and SO Pin Capacitance . . . . . . . . . . . . . . 41

Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Physical Dimensions* . . . . . . . . . . . . . . . . . . . . . 42

TS 048—48-Pin Standard TSOP ........................ 42

TSR048—48-Pin Reverse TSOP ........................ 43

FBB 048—48-Ball Fine-Pitch Ball Grid Array

(FBGA) 6 x 9 mm ................................................ 44

SO 044—44-Pin Small Outline Package ............. 45

Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 46

Am29LV800B

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