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White Electronic Designs Corporation • Phoenix, AZ • (602) 437-1520
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS, WE CONTROLLED
(VCC = 5.0V, TA = -55
°C to +125°C)
WF512K32-XXX5
WF512K32-XXX5
WF512K32-XXX5
AC CHARACTERISTICS – READ ONLY OPERATIONS
(VCC = 5.0V, TA = -55
°C to +125°C)
Parameter
Symbol
-60
-70
-90
-120
-150
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Read Cycle Time
tAVAV
tRC
60
70
90
120
150
ns
Address Access Time
tAVQV
tACC
60
70
90
120
150
ns
Chip Select Access Time
tELQV
tCE
60
70
90
120
150
ns
Output Enable to Output Valid
tGLQV
tOE
30
35
35
50
55
ns
Chip Select to Output High Z (1)
tEHQZ
tDF
20
20
20
30
35
ns
Output Enable High to Output High Z (1)
tGHQZ
tDF
20
20
20
30
35
ns
Output Hold from Address, CS or OE Change,
tAXQX
tOH
00
0
0
0
ns
whichever is First
1. Guaranteed by design, but not tested
Parameter
Symbol
-60
-70
-90
-120
-150
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Write Cycle Time
tAVAV
tWC
60
70
90
120
150
ns
Chip Select Setup Time
tELWL
tCS
00
00
0
ns
Write Enable Pulse Width
tWLWH
tWP
40
45
45
50
50
ns
Address Setup Time
tAVWH
tAS
00
00
0
ns
Data Setup Time
tDVWH
tDS
40
45
45
50
50
ns
Data Hold Time
tWHDX
tDH
00
00
0
ns
Address Hold Time
tWHAX
tAH
40
45
45
50
50
ns
Write Enable Pulse Width High
tWHWL
tWPH
20
20
20
20
20
ns
Duration of Byte Programming Operation (1)
tWHWH1
300
300
300
300
300
µs
Sector Erase Time (2)
tWHWH2
15
15
15
15
15
sec
Read Recovery Time before Write
tGHWL
00
00
0
ns
VCC Set-up Time
tVCS
50
50
50
50
50
µs
Chip Programming Time
11
11
11
11
11
sec
Output Enable Setup Time
tOES
00
00
0
ns
Output Enable Hold Time (4)
tOEH
10
10
10
10
10
ns
Chip Erase Time (3)
64
64
64
64
64
sec
NOTES:
1. Typical value for tWHWH1 is 7
µs.
2. Typical value for tWHWH2 is 1sec.
3. Typical value for Chip Erase Time is 8sec.
4. For Toggle and Data Polling.