AM29F040 AMD [Advanced Micro Devices], AM29F040 Datasheet - Page 25

• Manufacturer Part Number: AM29F040
• Description: 4 Megabit (524,288 x 8-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

SWITCHING WAVEFORMS
*DQ7 = Valid Data (The device has completed the Embedded operation.)
*DQ6 stops toggling (The device has completed the Embedded operation.)
WE
OE
CE
CE
WE
OE
Figure 12. AC Waveforms for Data Polling During Embedded Algorithm Operations
(DQ0–DQ7)
Figure 13. AC Waveforms for Toggle Bit During Embedded Algorithm Operations
DQ0 – DQ6
Data
t
OES
DQ7
t
CH
t
t
OH
OEH
t
OEH
DQ6 = Toggle
t
WHWH 1 or 2
t
CE
t
OE
t
OE
Am29F040
DQ0 – DQ6 = Invalid
DQ6 = Toggle
DQ7
*
*
Stop Toggling
Valid Data
DQ6 =
DQ7 =
DQ0 – DQ6
Valid Data
t
OH
t
DF
DQ0–DQ7
High Z
Valid
17113E-17
17113E-18
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