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AM29F400AT Datasheet(PDF) 27 Page - Advanced Micro Devices

Part # AM29F400AT
Description  4 Megabit (524,288 x 8-Bit/262,144 x 16-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory
PDF  35 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM29F400AT Datasheet(HTML) 27 Page - Advanced Micro Devices

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Am29F400AT/Am29F400AB
27
PRELIMINARY
SWITCHING WAVEFORMS
Notes:
1. PA is address of the memory location to be programmed.
2. PD is data to be programmed at byte address.
3. DQ7 is the output of the complement of the data written to the device.
4. DOUT is the output of the data written to the device.
5. Figure indicates last two bus cycles of four bus cycle sequence.
6. These waveforms are for the x16 mode.
Figure 9.
Program Operation Timings
Notes:
1. SA is the sector address for Sector Erase. Addresses = don’t care for Chip Erase.
2. These waveforms are for the x16 mode.
Figure 10.
AC Waveforms Chip/Sector Erase Operations
DOUT
PD
tAH
Data Polling
tDF
tOH
tOE
tDS
tCS
tWPH
tDH
tWP
tGHWL
Addresses
CE
OE
WE
Data
5.0 V
DQ7
5555H
PA
A0H
PA
3rd Bus Cycle
20380B-16
tWC
tRC
tAS
tWHWH1
tCE
tAS
tWP
tCS
tDH
5555H
2AAAH
SA
CE
OE
WE
Data
VCC
AAH
55H
Addresses
2AAAH
tVCS
tDS
5555H
5555H
tWPH
tGHWL
tAH
AAH
55H
80H
10H/30H
20380B-17



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