WF128K16 データシートの表示（PDF） - Unspecified
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WF128K16 Datasheet PDF : 11 Pages
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WF128K16, WF256K16-XCX5
AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS, WE CONTROLLED
(VCC = 5.0V, VSS = 0V, TA = -55°C to +125°C)
Parameter
Write Cycle Time
Chip Select Setup Time
Write Enable Pulse Width
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Chip Select Hold Time
Write Enable Pulse Width High
Duration of Byte Programming Operation (min)
Chip and Sector Erase Time
Read Recovery Time Before Write
VCC Setup Time
Chip Programming Time
Output Enable Setup Time
Output Enable Hold Time (1)
1. For Toggle and Data Polling.
Symbol
tAVAV tWC
tELWL tCS
tWLWH tWP
tAVWL tAS
tDVWH tDS
tWHDX tDH
tWLAX tAH
tWHEH tCH
tWHWL tWPH
tWHWH1
tWHWH2
tGHWL
tVCS
tOES
tOEH
-50
Min Max
50
0
25
0
25
0
40
0
20
14
2.2 60
0
50
12.5
0
10
-60
-70
-90
-120
Min Max Min Max Min Max Min Max
60
70
90
120
0
0
0
0
30
35
45
50
0
0
0
0
30
30
45
50
0
0
0
0
45
45
45
50
0
0
0
0
20
20
20
20
14
14
14
14
2.2 60 2.2 60 2.2 60 2.2 60
0
0
0
0
50
50
50
50
12.5
12.5
12.5
12.5
0
0
0
0
10
10
10
10
-150
Unit
Min Max
150
ns
0
ns
50
ns
0
ns
50
ns
0
ns
50
ns
0
ns
20
ns
14
µs
2.2 60 sec
0
ns
50
µs
12.5 sec
0
ns
10
ns
AC CHARACTERISTICS – READ ONLY OPERATIONS
(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
Read Cycle Time
tAVAV tRC
50
60
70
90
120
150
ns
7
Address Access Time
Chip Select Access Time
tAVQV
tELQV
tACC
tCE
50
60
50
60
70
90
70
90
120
150 ns
120
150 ns
OE to Output Valid
tGLQV tOE
25
30
35
40
50
55 ns
Chip Select to Output High Z (1)
tEHQZ tDF
20
20
20
25
30
35 ns
OE High to Output High Z (1)
tGHQZ tDF
20
20
20
25
30
35 ns
Output Hold from Address, CS or OE Change, tAXQX tOH
0
0
0
0
0
0
ns
whichever is first
1. Guaranteed by design, not tested.
White Microelectronics • Phoenix, AZ • (602) 437-1520
4
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