WSF512K32 查看數據表（PDF） - White Electronic Designs Corporation
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WSF512K32 Datasheet PDF : 14 Pages
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White Electronic Designs
WSF512K32-XXX
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
Write Enable Pulse Width High
Duration of Byte Programming Operation (1)
Chip and Sector Erase Time (2)
Read Recovery Time Before Write
VCC Set-up Time
Chip Programming Time
Output Enable Setup Time
Output Enable Hold Time (4)
Chip Erase Time (3)
Symbol
-70
-90
Unit
Min
Max
Min
Max
tAVAV
tWC
70
90
ns
tELWL
tCS
0
0
ns
tWLWH
tWP
45
45
ns
tAVWL
tAS
0
0
ns
tDVWH
tDS
45
45
ns
tWHDX
tDH
0
0
ns
tWLAX
tAH
45
45
ns
tWHWL
tWPH
20
20
ns
tWHWH1
300
300
µs
tWHWH2
15
15
sec
tGHWL
0
0
µs
tVCS
50
50
µs
11
11
sec
tOES
0
0
ns
tOEH
10
10
ns
64
64
sec
NOTES:
1. Typical value for tWHWH1 is 7ns.
2. Typical value for tWHWH2 is 1sec.
3. Typical value for Chip Erase Time is 8sec.
4. For Toggle and Data# Polling.
FLASH AC CHARACTERISTICS – READ ONLY OPERATIONS
VCC = 5.0V, -55°C ≤ TA ≤ +125°C
Parameter
Symbol
-70
-90
Unit
Min
Max
Min
Max
Read Cycle Time
tAVAV
tRC
70
90
ns
Address Access Time
tAVQV
tACC
70
90
ns
Chip Select Access Time
tELQV
tCE
70
90
ns
OE# to Output Valid
tGLQV
tOE
35
35
ns
Chip Select to Output High Z (1)
tEHQZ
tDF
20
20
ns
OE# High to Output High Z (1)
tGHQZ
tDF
20
20
ns
Output Hold from Address, FCS# or OE# Change,
tAXQX
tOH
0
whichever is first
0
ns
1. Guaranteed by design, not tested.
May 2006
Rev. 9
6
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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