WSF128K32-XH2X Ver la hoja de datos (PDF) - White Electronic Designs Corporation
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WSF128K32-XH2X Datasheet PDF : 12 Pages
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White Electronic Designs
WSF128K32-XH2X
PRELIMINARY
FLASH AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS, FWE# CONTROLLED
VCC = 5.0V, -55°C ≤ TA ≤ +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 Set-up Time
Chip Programming Time
Output Enable Setup Time
Output Enable Hold Time (1)
Symbol
-70
-90
-120
Unit
Min
Max
Min
Max
Min
Max
tAVAV
tWC
70
90
120
ns
tELWL
tCS
0
0
0
ns
tWLWH
tWP
45
45
50
ns
tAVWL
tAS
0
0
0
ns
tDVWH
tDS
45
45
50
ns
tWHDX
tDH
0
0
0
ns
tWLAX
tAH
45
45
50
ns
tWHEH
tCH
0
0
0
ns
tWHWL
tWPH
20
20
20
ns
tWHWH1
14
14
14
µs
tWHWH2
2.2
60
2.2
60
2.2
60
sec
tGHWL
0
0
0
µs
tVCS
50
50
50
µs
12.5
12.5
12.5
sec
tOES
0
0
0
ns
tOEH
10
10
10
ns
1. For Toggle and Data# Polling.
FLASH AC CHARACTERISTICS – READ ONLY OPERATIONS
VCC = 5.0V, -55°C ≤ TA ≤ +125°C
Parameter
Symbol
-70
-90
-120
Unit
Min
Max
Min
Max
Min
Max
Read Cycle Time
tAVAV
tRC
70
90
120
ns
Address Access Time
tAVQV
tACC
70
90
120
ns
Chip Select Access Time
tELQV
tCE
70
90
120
ns
OE# to Output Valid
tGLQV
tOE
35
40
50
ns
Chip Select to Output High Z (1)
tEHQZ
tDF
20
25
30
ns
OE# High to Output High Z (1)
tGHQZ
tDF
20
25
30
ns
Output Hold from Address, FCS# or OE# Change,
tAXQX
tOH
0
0
0
ns
whichever is first
1. Guaranteed by design, not tested.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
October 2004
Rev. 4
5
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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