AM29DL640D AMD, AM29DL640D Datasheet - Page 3

• Manufacturer Part Number: AM29DL640D
• Description: 64 Megabit CMOS 3.0 Volt-only / Simultaneous Read/Write Flash Memory
• Manufacturer: AMD

TABLE OF CONTENTS
Distinctive Characteristics . . . . . . . . . . . . . . . . . . 1
General Description . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 6
Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 8
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . 9
Common Flash Memory Interface (CFI) . . . . . . . 20
Architectural Advantages ....................................... 1
Performance Characteristics .................................. 1
Software Features .................................................. 1
Hardware Features ................................................. 1
Simultaneous Read/Write Operations
with Zero Latency ................................................... 2
Am29DL640D Features .......................................... 2
Special Handling Instructions for FBGA Package .. 6
Word/Byte Configuration . . . . . . . . . . . . . . . . . . . . 9
Requirements for Reading Array Data ................... 9
Writing Commands/Command Sequences .......... 10
Accelerated Program Operation ........................... 10
Autoselect Functions ............................................ 10
Simultaneous Read/Write Operations
with Zero Latency ................................................. 10
Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Automatic Sleep Mode ......................................... 11
RESET#: Hardware Reset Pin ............................. 11
Output Disable Mode ............................................ 11
Autoselect Mode . . . . . . . . . . . . . . . . . . . . . . . . . 14
Sector/Sector Block Protection
and Unprotection . . . . . . . . . . . . . . . . . . . . . . . . . 16
Write Protect (WP#) ............................................. 17
Temporary Sector Unprotect ................................ 17
SecSi™ (Secured Silicon) Sector Secure
Flash Memory Region .......................................... 19
Factory Locked: SecSi Sector Programmed
and Protected At the Factory ................................ 19
Customer Lockable: SecSi Sector Secure
NOT Programmed or Protected At the Factory .... 19
Hardware Data Protection .................................... 19
Low VCC Write Inhibit .......................................... 20
Write Pulse “Glitch” Protection ............................. 20
Logical Inhibit ....................................................... 20
Power-Up Write Inhibit ......................................... 20
Table 1. Am29DL640D Device Bus Operations ... 9
Table 2. Am29DL640D Sector Architecture ....... 11
Table 3. Am29DL640D Autoselect Codes,
(High Voltage Method) ...................................... 15
Table 4. Am29DL640D Boot Sector/Sector
Block Addresses for Protection/Unprotection .... 16
Figure 1. Temporary Sector Unprotect
Operation ........................................................... 17
Figure 2. In-System Sector Protect/Unprotect
Algorithms .......................................................... 18
Table 5. CFI Query Identification String . . . . . . 20
A D V A N C E
Am29DL640D
I N F O R M A T I O N
Command Definitions. . . . . . . . . . . . . . . . . . . . . . 23
Write Operation Status . . . . . . . . . . . . . . . . . . . . . 28
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 32
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 33
Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 35
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 36
Reading Array Data .............................................. 23
Reset Command .................................................. 23
Autoselect Command Sequence .......................... 23
Enter SecSi™ Sector Secure/Exit
SecSi Sector Secure Command Sequence ......... 24
Byte/Word Program Command Sequence ........... 24
Unlock Bypass Command Sequence ................... 24
Chip Erase Command Sequence ......................... 25
Sector Erase Command Sequence ...................... 25
Erase Suspend/Erase Resume Commands ......... 26
DQ7: Data# Polling ............................................... 28
RY/BY#: Ready/Busy# . . . . . . . . . . . . . . . . . . . . . 29
DQ6: Toggle Bit I .................................................. 29
DQ2: Toggle Bit II ................................................. 30
Reading Toggle Bits DQ6/DQ2 ............................ 30
DQ5: Exceeded Timing Limits .............................. 30
DQ3: Sector Erase Timer ..................................... 30
Industrial (I) Devices ............................................. 32
Extended (E) Devices ........................................... 32
V
CMOS Compatible ............................................... 33
Zero-Power Flash ............................................... 34
Read-Only Operations ......................................... 36
Hardware Reset (RESET#) .................................. 37
Word/Byte Configuration (BYTE#) ....................... 38
Table 6. System Interface String . . . . . . . . . . . . 21
Table 7. Device Geometry Definition . . . . . . . . . 21
Table 8. Primary Vendor-Specific
Extended Query. . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 3. Program Operation ............................. 25
Figure 4. Erase Operation ................................. 26
Table 9. Am29DL640D Command Definitions. . 27
Figure 5. Data# Polling Algorithm ...................... 28
Figure 6. Toggle Bit Algorithm ........................... 29
Table 10. Write Operation Status ...................... 31
CC
Figure 7. Maximum Negative
Overshoot Waveform......................................... 32
Figure 8. Maximum Positive
Overshoot Waveform......................................... 32
Figure 9. I
Active and Automatic Sleep Currents)............... 34
Figure 10. Typical I
Figure 11. Test Setup ....................................... 35
Figure 12. Input Waveforms and
Measurement Levels ......................................... 35
Figure 13. Read Operation Timings................... 36
Figure 14. Reset Timings................................... 37
Figure 15. BYTE# Timings for
Read Operations................................................ 38
Supply Voltages ............................................ 32
CC1
Current vs. Time (Showing
CC1
vs. Frequency................ 34
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