AC CHARACTERISTICS
Alternate CE# Controlled Erase and Program Operations
Parameter
Speed Options
JEDEC
tAVAV
Std.
tWC
tAS
Description
55
60
70
90
Unit
ns
Write Cycle Time (Note 1)
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Min
Min
Min
Min
Min
55
55
70
90
tAVWL
tELAX
tDVEH
tEHDX
0
ns
tAH
30
30
35
35
40
40
45
45
ns
tDS
ns
tDH
0
0
ns
Read Recovery Time Before Write
(OE# High to WE# Low)
tGHEL
tGHEL
Min
ns
tWLEL
tEHWH
tELEH
tEHEL
tWS
tWH
tCP
WE# Setup Time
WE# Hold Time
Min
Min
Min
Min
Typ
Typ
0
0
ns
ns
ns
ns
CE# Pulse Width
CE# Pulse Width High
25
25
25
25
40
45
tCPH
30
Byte
5
7
Programming Operation
(Note 2)
tWHWH1
tWHWH1
µs
Word
Accelerated Programming Operation,
Word or Byte (Note 2)
tWHWH1
tWHWH2
Notes:
tWHWH1
tWHWH2
Typ
Typ
4
µs
Sector Erase Operation (Note 2)
0.4
sec
1. Not 100% tested.
2. See the “Erase And Programming Performance” section for more information.
46
Am29DL640H
June 7, 2005
SPANSION [ SPANSION ]
