Flash AC Characteristics – Read Only Operations
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Parameter
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Enable to Output Valid
Chip Enable to Output High Z (1)
Output Enable High to Output High Z(1)
Output Hold from Address, CE or OE Change, Whichever is First
Note 1. Guaranteed by design, but not tested
Symbol
–60
–70
–90
Units
JEDEC Stand’d Min Max Min Max Min Max
t
AVAV
t
AVQV
t
ELQV
t
GLQV
t
EHQZ
t
GHQZ
t
AXQX
t
RC
t
ACC
t
CE
t
OE
t
DF
t
DF
t
OH
0
60
60
60
30
20
20
0
70
70
70
35
20
20
0
90
90
90
35
20
20
ns
ns
ns
ns
ns
ns
ns
Flash AC Characteristics – Write / Erase / Program Operations, FWE Controlled
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Parameter
Write Cycle Time
Chip Enable Setup Time
Write Enable Pulse Width
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Write Enable Pulse Width High
Duration of Byte Programming Operation
Sector Erase Time
Read Recovery Time before Write
Vcc Setup Time
Chip Programming Time
Chip Enable Hold Time
Chip Erase Time
1. Toggle and Data Polling only.
Symbol
JEDEC Stand’d
t
AVAC
t
ELWL
t
WLWH
t
AVWL
t
DVWH
t
WHDX
t
WLAX
t
WHWL
t
WHWH
1
t
WHWH
2
t
WC
t
CE
t
WP
t
AS
t
DS
t
DH
t
AH
t
WPH
–60
–70
–90
Min Max Min Max Min Max
60
0
40
0
40
0
45
20
14
TYP
30
0
0
50
50
50
10
120
120
50
50
10
120
70
0
45
0
45
0
45
20
14
TYP
30
0
50
90
0
45
0
45
0
45
20
14
TYP
30
Units
ns
ns
ns
ns
ns
ns
ns
ns
µs
Sec
µs
µs
Sec
ns
Sec
t
GHWL
t
VCE
t
OEH 1
t
WHWH
3
10
Flash AC Characteristics – Write / Erase / Program Operations, FCE Controlled
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Parameter
Write Cycle Time
Write Enable Setup Time
Chip Enable Pulse Width
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Chip Enable Pulse Width High
Duration of Byte Programming
Sector Erase Time
Read Recovery Time
Chip Programming Time
Chip Erase Time
Symbol
JEDEC Stand’d
t
AVAC
t
WLE
L
t
ELEH
t
AVEL
t
DVEH
t
EHDX
t
ELAX
t
EHEL
t
WHWH
1
t
WHWH
2
t
WC
t
WS
t
CP
t
AS
t
DS
t
DH
t
AH
t
CPH
–60
–70
–90
Min Max Min Max Min Max
60
0
40
0
40
0
45
20
14
TYP
30
0
50
0
50
120
70
0
45
0
45
0
45
20
14
TYP
30
0
50
120
90
0
45
0
45
0
45
20
14
TYP
30
Units
ns
ns
ns
ns
ns
ns
ns
ns
µs
Sec
ns
Sec
Sec
t
GHEL
t
WHWH
3
5
120
Aeroflex Circuit Technology
SCD3852 REV A 5/20/98
Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
