WF128K32-XXX5
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS, WE CONTROLLED
(VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-50
-60
-70
-90
-120
-150
Unit
Min Max Min
Max Min Max Min Max Min
Max Min Max
Write Cycle Time
tAVAV
tWC
tCS
50
0
60
0
70
0
90
0
120
0
150
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
sec
ns
µs
sec
ns
ns
Chip Select Setup Time
Write Enable Pulse Width
Address Setup Time
Data Setup Time
tELWL
tWLWH
tAVWL
tDVWH
tWHDX
tWLAX
tWHEH
tWHWL
tWP
tAS
25
0
30
0
35
0
45
0
50
0
50
0
tDS
tDH
tAH
tCH
tWPH
25
0
30
0
30
0
45
0
50
0
50
0
Data Hold Time
Address Hold Time
40
0
45
0
45
0
45
0
50
0
50
0
Chip Select Hold Time
Write Enable Pulse Width High
20
14
2.2
0
20
14
2.2
0
20
14
2.2
0
20
14
2.2
0
20
14
2.2
0
20
14
Duration of Byte Programming Operation (min) tWHWH1
Sector Erase Time
tWHWH2
tGHWL
60
60
60
60
60
2.2
0
60
Read Recovery Time Before Write
VCC Setup Time
tVCS
50
50
50
50
50
50
Chip Programming Time
Output Enable Setup Time
Output Enable Hold Time (1)
1. For Toggle and Data Polling.
12.5
12.5
12.5
12.5
12.5
12.5
tOES
0
0
0
0
0
0
tOEH
10
10
10
10
10
10
AC CHARACTERISTICS – READ ONLY OPERATIONS
(VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C)
Parameter
Symbol
-50
Min Max Min Max
50 60
-60
-70
Min Max Min Max
70 90
-90
-120
-150
Unit
Min Max
Min Max
Read Cycle Time
tAVAV
tRC
tACC
tCE
tOE
tDF
tDF
tOH
120
120
120
50
150
150
150
55
ns
ns
ns
ns
ns
ns
ns
Address Access Time
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tAXQX
50
50
25
20
20
60
60
30
20
20
70
70
35
20
20
90
90
40
25
25
7
Chip Select Access Time
OE to Output Valid
Chip Select to Output High Z (1)
OE High to Output High Z (1)
30
35
30
35
Output Hold from Address, CS or OE Change,
whichever is first
0
0
0
0
0
0
1. Guaranteed by design, not tested.
5
White Microelectronics • Phoenix, AZ • (602) 437-1520
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
