AM29F016 Datasheet, PDF (20/36 Pages) Advanced Micro Devices – 16-Megabit (2,097,152 x 8-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory

Start
Read Byte
(DQ0–DQ7)
Addr = VA
VA = Byte address for programming
= Any of the sector addresses within the sector
being erased during sector erase operation
= Valid address equals any non-protected sector
group address during chip erase
Yes
DQ7 = Data
?
No
No
DQ5 = 1
? ^Yes
Yes
Read Byte
(DQ0–DQ7)
Addr = VA
Yes
DQ7 = Data
?
No
Fail
Pass
DQ7 is rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5.
Figure 3. Data Polling Algorithm
18805D-8
+0.8 V
–0.5 V
20 ns
–2.0 V
20 ns
20 ns
Figure 5. Maximum Negative Overshoot Waveform
18805D-10
20
Am29F016