W332M72V-XSBX
White Electronic Designs
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CHARACTERISTICS
(NOTES 5, 6, 8, 9, 11)
-100
-125
-133
Parameter
Symbol
Unit
Min
Max
7
Min
Max
6
Min
Max
5.5
6
CL = 3
CL = 2
tAC
tAC
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
Access time from CLK (pos.
edge)
7
6
Address hold time
Address setup time
CLK high-level width
CLK low-level width
tAH
1
2
1
2
0.8
1.5
2.5
2.5
7.5
10
tAS
tCH
3
3
tCL
3
3
CL = 3
CL = 2
tCK
10
13
1
8
Clock cycle time (22)
tCK
10
1
CKE hold time
CKE setup time
tCKH
tCKS
tCMH
tCMS
tDH
0.8
1.5
0.8
1.5
0.8
1.5
2
2
CS#, RAS#, CAS#, WE#, DQM hold time
CS#, RAS#, CAS#, WE#, DQM setup time
Data-in hold time
1
1
2
2
1
1
Data-in setup time
tDS
2
2
CL = 3 (10)
Data-out high-impedance time
CL = 2 (10)
tHZ
7
7
6
6
5.5
6
tHZ
Data-out low-impedance time
tLZ
1
3
1
3
1
3
Data-out hold time (load)
tOH
tOHN
tRAS
tRC
Data-out hold time (no load) (26)
ACTIVE to PRECHARGE command
ACTIVE to ACTIVE command period
ACTIVE to READ or WRITE delay
1.8
50
70
20
1.8
50
68
20
1.8
50
68
20
120,000
120,000
120,000
tRCD
tREF
Refresh period (8,192 rows) – Commercial,
Industrial
64
16
64
16
64
16
Refresh period (8,192 rows) – Military
AUTO REFRESH period
tREF
tRFC
tRP
ms
ns
ns
ns
ns
—
70
20
20
0.3
70
20
20
0.3
70
20
20
0.3
PRECHARGE command period
ACTIVE bank A to ACTIVE bank B command
Transition time (7)
tRRD
tT
1.2
1.2
1.2
(23)
1 CLK + 7ns
1 CLK + 7ns
1 CLK +
7.5ns
WRITE recovery time
(24)
tWR
15
80
15
80
15
75
ns
ns
Exit SELF REFRESH to ACTIVE command
tXSR
Ju;y 2006
Rev. 3
11
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
