P R E L I M I N A R Y
FLASH AC CHARACTERISTICS
Alternate CE#f Controlled Erase and Program Operations
Parameter
Speed
70
JEDEC
tAVAV
Std
tWC
tAS
tAH
tDS
tDH
Description
85
Unit
ns
Write Cycle Time (Note 1)
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Min
Min
Min
Min
Min
70
85
tAVWL
tELAX
tDVEH
tEHDX
0
ns
40
40
45
45
ns
ns
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#f Pulse Width
CE#f Pulse Width High
40
45
tCPH
30
5
Byte
Programming Operation
(Note 2)
tWHWH1
tWHWH1
µs
Word
7
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 “Flash Erase And Programming Performance” section for more information.
52
Am49DL32xBG
July 19, 2002
CYPRESS [ CYPRESS ]
