A29002 Datasheet, PDF (24/32 Pages) AMIC Technology – 256K X 8 Bit CMOS 5.0 Volt-only, Boot Sector Flash Memory

Timing Waveforms for I/O2 vs. I/O6
A29002/A290021 Series
Enter
Embedded
Erasing
Erase
Suspend
Enter Erase
Suspend Program
Erase
Resume
WE
Erase
Erase Suspend
Read
Erase
Suspend
Program
Erase Suspend
Read
Erase
I/O6
Erase
Complete
I/O2
I/O2 and I/O6 toggle with OE and CE
Note : Both I/O6 and I/O2 toggle with OE or CE. See the text on I/O6 and I/O2 in the section "Write Operation Statue" for
more information.
AC Characteristics
Erase and Program Operations
Alternate CE Controlled Writes
Parameter Symbols
Description
JEDEC
tAVAV
tAVEL
tELAX
tDVEH
tEHDX
tGHEL
tWLEL
tEHWH
tELEH
tEHEL
tWHWH1
tWHWH2
Std
-55 -70
tWC
Write Cycle Time (Note 1)
Min. 55
70
tAS
Address Setup Time
Min.
tAH
Address Hold Time
Min. 40
45
tDS
Data Setup Time
Min. 25
30
tDH
Data Hold Time
Min.
tGHEL Read Recover Time Before Write Min.
tWS
WE Setup Time
Min.
tWH
WE Hold Time
Min.
tCP
Write Pulse Width
Min. 30
35
tCPH Write Pulse Width High
Min. 20
20
tWHWH1
Byte Programming Operation
(Note 2)
Typ.
tWHWH2
Sector Erase Operation
(Note 2)
Typ.
Notes:
3. Not 100% tested.
4. See the "Erase and Programming Performance" section for more information.
Speed
-90 -120
90 120
0
45
50
45
50
0
0
0
0
45
50
20
20
7
1
-150
150
50
50
50
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
sec
(February, 2002, Version 1.0)
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AMIC Technology, Inc.