5962-9761201HXX Ver la hoja de datos (PDF) - White Electronic Designs Corporation
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5962-9761201HXX Datasheet PDF : 15 Pages
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White Electronic Designs
WF4M32-XXX5
AC CHARACTERISTICS FOR G4T AND H2 PACKAGES WRITE/ERASE/PROGRAM OPERATIONS - WE CONTROLLED
(VCC = 5.0V, TA = -55°C TO +125°C)
Parameter
Write Cycle Time
Symbol
tAVAV
tWC
-100
Min
Max
100
Chip Select Setup Time
tELWL
tCS
0
Write Enable Pulse Width
tWLWH
tWP
45
Address Setup Time
tAVWL
tAS
0
Data Setup Time
tDVWH
tDS
45
Data Hold Time
tWHDX
tDH
15
Address Hold Time (1)
tWLAX
tAH
45
Write Enable Pulse Width High (2)
tWHWL
tWPH
20
Duration of Byte Programming Operation (3)
tWHWH1
300
Sector Erase (4)
tWHWH2
15
Read Recovery Time before Write
tGHWL
0
VCC Setup Time
tVCS
50
Chip Programming Time
44
Chip Erase Time (5)
256
Output Enable Hold Time (6)
tOEH
10
RESET Pulse Width
tRP
500
NOTES:
1. A21 must be held constant until WE or CS go high, whichever occurs first.
2. Guaranteed by design, but not tested.
3. Typical value for tWHWH1 is 7µs.
4. Typical value for tWHWH2 is 1sec.
5. Typical value for Chip Erase Time is 32sec.
6. For Toggle and Data Polling.
-120
Min
Max
120
0
50
0
50
15
50
20
300
15
0
50
44
256
10
500
-150
Min
Max
150
0
50
0
50
15
50
20
300
15
0
50
44
256
10
500
Unit
ns
ns
ns
ns
ns
ns
ns
ns
µs
sec
µs
µs
sec
sec
ns
ns
AC CHARACTERISTICS FOR G4T AND H2 PACKAGES READ-ONLY OPERATIONS
(VCC = 5.0V, TA = -55°C TO +125°C)
Parameter
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Enable to Output Valid
Chip Select High to Output High Z
Output Enable High to Output High Z
Output Hold from Addresses, CS or OE Change,
whichever is First
RST Low to Read Mode
Symbol
tAVAV
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tAXQX
tRC
tACC
tCE
tOE
tDF
tDF
tOH
-100
Min
Max
100
100
100
50
40
40
0
tReady
20
-120
Min
Max
120
120
120
50
45
45
0
20
-150
Min
Max
150
150
150
55
45
45
0
20
Unit
ns
ns
ns
ns
ns
ns
ns
µs
White Electronic Designs Corporation • Phoenix AZ • (602) 437-1520
6
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