Flash AC Characteristics – Read Only Operations
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Symbol
–60
–70
–90
Parameter
Units
JEDEC Stand’d Min Max Min Max Min Max
tAVAV
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tAXQX
tRC
tACC
tCE
tOE
tDF
60
70
90
ns
ns
ns
ns
ns
ns
ns
Read Cycle Time
60
60
30
20
20
70
70
35
20
20
90
90
35
20
20
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
tDF
tOH
0
0
0
Flash AC Characteristics – Write / Erase / Program Operations, FWE Controlled
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Symbol
–60
–70
–90
Parameter
Units
JEDEC Stand’d Min Max Min Max Min Max
tAVAC
tELWL
tWC
tCE
60
0
70
0
90
0
ns
ns
Write Cycle Time
Chip Enable Setup Time
Write Enable Pulse Width
Address Setup Time
tWLWH
tAVWL
tDVWH
tWHDX
tWLAX
tWHWL
tWHWH1
tWHWH2
tWP
tAS
40
0
45
0
45
0
ns
ns
tDS
40
0
45
0
45
0
ns
Data Setup Time
tDH
tAH
tWPH
ns
Data Hold Time
45
20
45
20
45
20
ns
Address Hold Time
ns
Write Enable Pulse Width High
Duration of Byte Programming Operation
Sector Erase Time
14 TYP 14 TYP 14 TYP
µs
30
30
30
Sec
µs
tGHWL
0
0
0
Read Recovery Time before Write
Vcc Setup Time
tVCE
50
50
50
µs
50
10
50
10
50
10
Sec
ns
Chip Programming Time
Chip Enable Hold Time
Chip Erase Time
1
tOEH
tWHWH3
120
120
120
Sec
1. Toggle and Data Polling only.
Flash AC Characteristics – Write / Erase / Program Operations, FCE Controlled
(Vcc = 5.0V, Vss = 0V, Tc = -55°C to +125°C)
Symbol
–60
–70
–90
Parameter
Units
JEDEC Stand’d Min Max Min Max Min Max
tAVAC
tWLEL
tELEH
tWC
tWS
tCP
60
0
70
0
90
0
ns
ns
Write Cycle Time
Write Enable Setup Time
Chip Enable Pulse Width
Address Setup Time
Data Setup Time
40
0
45
0
45
0
ns
tAVEL
tAS
ns
tDVEH
tEHDX
tELAX
tDS
40
0
45
0
45
0
ns
tDH
tAH
tCPH
ns
Data Hold Time
45
20
45
20
45
20
ns
Address Hold Time
tEHEL
ns
Chip Enable Pulse Width High
Duration of Byte Programming
Sector Erase Time
tWHWH1
tWHWH2
14 TYP 14 TYP 14 TYP
µs
30
30
30
Sec
ns
tGHEL
0
0
0
Read Recovery Time
Chip Programming Time
Chip Erase Time
50
50
50
Sec
Sec
tWHWH3
120
120
120
5
Aeroflex Circuit Technology
SCD1663 REV A 4/28/98 Plainview NY (516) 694-6700
AEROFLEX [ AEROFLEX CIRCUIT TECHNOLOGY ]
