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AM28F020 Datasheet(PDF) 29 Page - Advanced Micro Devices

Part # AM28F020
Description  2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk 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

AM28F020 Datasheet(HTML) 29 Page - Advanced Micro Devices

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Am28F020
29
SWITCHING WAVEFORMS
Figure 8.
AC Waveforms for Erase Operations
DATA IN =
A0h
VALID
DATA
OUT
Erase-Verify
Command
Erase
Verification
Standby,
Power-down
tWLAX (tAH)
tEHQZ (tDF)
tWHGL
tGHQZ (tDF)
tGLQX (tOLZ)
tGLQV (tOE)
tELQV (tCE)
14727F-16
tELQX (tLZ)
tAVAV (tRC)
tAXQX (tOH)
DATA IN
= 20h
DATA IN
= 20h
Setup Erase
Command
Erase
Command
Power-up,
Standby
tAVWL (tAS)
tAVAV (tWC)
tELWL (tCS)
tGHWL (tOES)
tWHEH (tCH)
tWHWH2
tWHDX (tDH)
tWLWH (tWP)
tDVWH (tDS)
tVCS
tVPEL
Addresses
HIGH Z
CE# (E#)
OE# (G#)
WE# (W
#)
Data (DQ)
5.0 V
VCC
0 V
VPPH
VPP
VPPL
Erasure
tWHWL (tWPH)



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