AM29BDS640G SPANSION [SPANSION], AM29BDS640G Datasheet - Page 41

• Manufacturer Part Number: AM29BDS640G
• Description: 64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
• Manufacturer: SPANSION [SPANSION]

October 1, 2003 25903C1
Notes:
1. VA = Valid address for programming. During a sector erase operation, a valid
2. DQ7 should be rechecked even if DQ5 = “1” because DQ7 may change simulta-
address is any sector address within the sector being erased. During chip erase, a
valid address is any non-protected sector address.
neously with DQ5.
No
P r e l i m i n a r y
Figure 4. Data# Polling Algorithm
Read DQ7–DQ0
Read DQ7–DQ0
DQ7 = Data?
DQ7 = Data?
Addr = VA
Addr = VA
DQ5 = 1?
START
FAIL
Am29BDS640G
No
Yes
No
Yes
Yes
PASS
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