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SEU02G64B4BF2SA-30R Datasheet(PDF) 10 Page - List of Unclassifed Manufacturers

Part # SEU02G64B4BF2SA-30R
Description  2GB DDR2 . SDRAM unbuffered DIMM
Download  16 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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SEU02G64B4BF2SA-30R Datasheet(HTML) 10 Page - List of Unclassifed Manufacturers

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 10 / 16 page
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preliminary
Data Sheet
Rev.0.9
17.12.2012
Swissbit AG
Industiestrasse 4
Fon: +41 (0) 71 913 03 03
www.swissbit.com
Page 10
CH-9552 Bronschhofen
Fax: +41 (0) 71 913 03 15
eMail: info@swissbit.com
of 16
DDR2 SDRAM COMPONENT ELECTRICAL CHARACTERISTICS AND RECOMMENDED
AC OPERATING CONDITIONS (Continued)
(0°C ≤ TCASE ≤ + 85°C ; VDDQ = +1.8V ± 0.1V, VDD = +1.8V ± 0.1V)
AC CHARACTERISTICS
6400-6-6-6
5300-5-5-5
PARAMETER
SYMBOL
MIN
MAX
MIN
MAX
Unit
Address and control input hold
time
tIH
0.25
-
0.275
-
ns
CAS# to CAS# command delay
tCCD
2
-
2
-
tCK
ACTIVE to ACTIVE (same bank)
command period
tRC
60
-
60
-
ns
ACTIVE bank a to ACTIVE bank
b command
tRRD
7.5
-
7.5
-
ns
ACTIVE to READ or WRITE
delay
tRCD
15
-
15
-
ns
Four bank Activate period
tFAW
37.5
-
37.5
-
ns
ACTIVE to PRECHARGE
command
tRAS
45
70
’000
45
70
’000
ns
Internal READ to precharge
command delay
tRTP
7.5
-
7.5
-
ns
Write recovery time
tWR
15
-
15
-
ns
Auto precharge write recovery +
precharge time
tDAL
tWR + tRP
-
tWR + tRP
-
ns
Internal WRITE to READ
command delay
tWTR
7.5
-
7.5
-
ns
PRECHARGE command period
tRP
15
-
15
-
ns
PRECHARGE ALL command
period
tRPA
tRP + tCK
-
tRP + tCK
-
ns
LOAD MODE command cycle
time
tMRD
2
-
2
-
tCK
CKE low to CK, CK# uncertainty
tDELAY
tIS + tCK + tIH
tIS + tCK + tIH
tCK
REFRESH to ACTIVE or
REFRESH to REFRESH
command interval
tRFC
127.5
70
’000
127.5
70
’000
ns
Average periodic refresh interval
0 °C
≤ TCASE ≤ 85°C
tREFI
-
7.8
-
7.8
µs
85 °C < TCASE
≤ 95°C
3.9
3.9
Exit SELF REFRESH to non-
READ command
tXSNR
tRFC(min)
+ 10
-
tRFC(min)
+ 10
-
ns
Exit SELF REFRESH to READ
command
tXSRD
200
-
200
-
tCK
Exit SELF REFRESH timing
reference
tISXR
tIS
-
tIS
-
ps
ODT turn-on delay
tAOND
2
2
2
2
tCK
ODT turn-on
tAON
tAC(min)
tAC(max)
+ 1,000
tAC(min)
tAC(max)
+ 1,000
ps
ODT turn-off delay
tAOFD
2.5
2.5
2.5
2.5
tCK
ODT turn-off
tAOF
tAC(min)
tAC(max)
+ 600
tAC(min)
tAC(max)
+ 600
ps
ODT turn-on (power-down
mode)
tAONPD
tAC(min) +
2,000
2 x tCK +
tAC(max)
+ 1,000
tAC(min) +
2,000
2 x tCK +
tAC(max)
+ 1,000
ps
ODT turn-off (power-down
mode)
tAOFPD
tAC(min) +
2,000
2.5 x tCK +
tAC(max)
+ 1,000
tAC(min) +
2,000
2.5 x tCK +
tAC(max)
+ 1,000
ps
ODT to power-down entry
latency
tANPD
3
-
3
-
tCK


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