AM29F400BB-70SD Spansion Inc., AM29F400BB-70SD Datasheet - Page 5

• Manufacturer Part Number: AM29F400BB-70SD
• Description: Flash Memory IC
• Manufacturer: Spansion Inc.

Specifications of AM29F400BB-70SD

• Memory Size: 4Mbit
• Memory Configuration: 512K X 8 / 256K X 16
• Ic Interface Type: Parallel
• Access Time: 70ns
• Memory Case Style: SOIC
• No. Of Pins: 44
• Operating Temperature Range: 0°C To +70°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
Command Definitions . . . . . . . . . . . . . . . . . . . . . 13
Write Operation Status . . . . . . . . . . . . . . . . . . . . 18
Absolute Maximum Ratings . . . . . . . . . . . . . . . . 22
November 1, 2006 21505E5
Word/Byte Configuration .......................................................... 8
Requirements for Reading Array Data ..................................... 8
Writing Commands/Command Sequences .............................. 8
Program and Erase Operation Status ...................................... 9
Standby Mode .......................................................................... 9
RESET#: Hardware Reset Pin ................................................. 9
Output Disable Mode ................................................................ 9
Autoselect Mode ..................................................................... 10
Sector Protection/Unprotection ............................................... 11
Temporary Sector Unprotect .................................................. 11
Hardware Data Protection ...................................................... 12
Reading Array Data ................................................................ 13
Reset Command ..................................................................... 13
Autoselect Command Sequence ............................................ 13
Word/Byte Program Command Sequence ............................. 13
Chip Erase Command Sequence ........................................... 14
Sector Erase Command Sequence ........................................ 14
Erase Suspend/Erase Resume Commands ........................... 16
DQ7: Data# Polling ................................................................. 18
RY/BY#: Ready/Busy# ........................................................... 19
DQ6: Toggle Bit I .................................................................... 19
DQ2: Toggle Bit II ................................................................... 19
Reading Toggle Bits DQ6/DQ2 .............................................. 19
DQ5: Exceeded Timing Limits ................................................ 20
DQ3: Sector Erase Timer ....................................................... 20
Table 1. Am29F400B Device Bus Operations .................................. 8
Table 2. Am29F400BT Top Boot Block Sector Address Table ....... 10
Table 3. Am29F400BB Bottom Boot Block Sector Address Table.. 10
Table 4. Am29F400B Autoselect Codes (High Voltage Method) .... 11
Figure 1. Temporary Sector Unprotect Operation........................... 11
Low V
Write Pulse “Glitch” Protection........................................................ 12
Logical Inhibit .................................................................................. 12
Power-Up Write Inhibit .................................................................... 12
Figure 2. Program Operation .......................................................... 14
Figure 3. Erase Operation............................................................... 16
Table 5. Am29F400B Command Definitions................................... 17
Figure 4. Data# Polling Algorithm ................................................... 18
Figure 5. Toggle Bit Algorithm......................................................... 20
Table 6. Write Operation Status...................................................... 21
Figure 6. Maximum Negative Overshoot Waveform ....................... 22
CC
Write Inhibit ...................................................................... 12
D A T A
Am29F400B
S H E E T
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 22
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 23
Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Key to Switching Waveforms. . . . . . . . . . . . . . . . 25
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 26
Erase and Programming Performance . . . . . . . . 36
Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 36
TSOP and SO Pin Capacitance . . . . . . . . . . . . . . 36
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 37
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 39
TTL/NMOS Compatible .......................................................... 23
CMOS Compatible .................................................................. 24
Read Operations .................................................................... 26
Hardware Reset (RESET#) .................................................... 27
Word/Byte Configuration (BYTE#)
Erase/Program Operations ..................................................... 29
Temporary Sector Unprotect .................................................. 33
Alternate CE# Controlled Erase/Program Operations ............ 34
TS 048—48-Pin Standard Thin Small Outline Package ......... 37
SO 044—44-Pin Small Outline Package ................................ 38
Revision A (August 1997) ....................................................... 39
Revision B (October 1997) ..................................................... 39
Revision C (January 1998) ..................................................... 39
Revision C+1 (February 1998) ............................................... 39
Revision C+2 (April 1998) ....................................................... 39
Revision C+3 (June 1998) ...................................................... 39
Revision C+4 (August 1998) ................................................... 40
Revision D (January 1999) ..................................................... 40
Revision D+1 (July 2, 1999) ................................................... 40
Revision E (November 15, 1999) ............................................ 40
Revision E+1 (November 30, 2000) ....................................... 40
Revision E+2 (June 4, 2004) .................................................. 40
Revision E+3 (December 22, 2005) ....................................... 40
Revision E4 (May 18, 2006) ................................................... 40
Figure 7. Maximum Positive Overshoot Waveform........................ 22
Figure 8. Test Setup....................................................................... 25
Table 7. Test Specifications ........................................................... 25
Figure 9. Read Operations Timings ............................................... 26
Figure 10. RESET# Timings .......................................................... 27
Figure 11. BYTE# Timings for Read Operations............................ 28
Figure 12. BYTE# Timings for Write Operations............................ 28
Figure 13. Program Operation Timings.......................................... 30
Figure 14. Chip/Sector Erase Operation Timings .......................... 31
Figure 15. Data# Polling Timings (During Embedded Algorithms). 32
Figure 16. Toggle Bit Timings (During Embedded Algorithms)...... 32
Figure 17. DQ2 vs. DQ6................................................................. 33
Figure 18. Temporary Sector Unprotect Timing Diagram .............. 33
Figure 19. Alternate CE# Controlled Write Operation Timings ...... 35
...................................... 28
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