sg2567udr212851hc ETC-unknow, sg2567udr212851hc Datasheet - Page 23
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sg2567udr212851hc
Manufacturer Part Number
sg2567udr212851hc
Description
Dram Module Ddr2 Sdram 2gbyte 240udimm
Manufacturer
ETC-unknow
Datasheet
1.SG2567UDR212851HC.pdf
(26 pages)
Corporate Headquarters: P. O. Box 1757, Fremont, CA 94538, USA • Tel:(510) 623-1231 • Fax:(510) 623-1434 • E-mail: info@smartm.com
Europe: 5 Kelvin Park South, Kelvin South, East Kilbride, G75 ORH, United Kingdom • Tel: +44-870-870-8747 • Fax: +44-870-870-8757
Asia/Pacific: Plot 18, Lrg Jelawat 4, Kawasan Perindustrian Seberang Jaya 13700, Prai, Penang, Malaysia • Tel: +604-3992909 • Fax: +604-3992903
Parameter
ACTIVE to ACTIVE (same bank) command
ACTIVE bank a to ACTIVE bank b command
ACTIVE to READ or WRITE delay
ACTIVE to PRECHARGE command
Internal READ to precharge command delay
Write recovery time
Auto precharge write recovery + Precharge time
Internal WRITE to READ command delay
PRECHARGE command period
LOAD MODE command cycle time
REFRESH to REFRESH command interval
Average periodic refresh Interval
Exit self refresh to non-READ command
Exit self refresh to READ command
ODT turn-on delay
ODT turn-on
ODT turn-off delay
ODT turn-off
ODT turn-on (power-down mode)
ODT turn-off (power-down mode)
ODT to power-down entry latency
ODT power-down exit latency
Exit active power-down to READ command,
MR[bit12=0]
Exit active power-down to READ command,
MR[bit12=1]
Exit precharge power down to any non-read com-
mand
CKE minimum pulse width (high and low pulse width)
Device AC Operating Conditions (Contd.)
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
RRD
RCD
RAS
RTP
WR
DAL
WTR
RP
MRD
RFC
REFI
XSNR
XSRD
AOND
AON
AOFD
AOF
AONPD
AOFPD
ANPD
AXPD
XARD
XARDS
XP
CKE
57.5
7.5
12.5
45
7.5
15
t
7.5
12.5
2
127.5
-
t
(min) + 10
200
2
t
(min)
2.5
t
(min)
t
(min) + 2000
t
(min) + 2000
3
8
2
8 - AL
2
3
WR
RFC
AC
AC
AC
AC
Min
+ t
2.5ns @ CL 5.0
DDR2-800-555
RP
-
-
-
70000
-
-
-
-
-
-
-
7.8
-
-
2
t
(max) + 700
2.5
t
(max) + 600
2*t
(max) +
1000
2.5*t
t
(max) +
1000
-
-
-
-
-
-
AC
AC
AC
CK
SG2567UDR212851UU
Max
CK
+ t
+
AC
Unit
ns
ns
ns
ns
ns
ns
t
ns
ns
t
ns
μs
ns
t
t
ps
t
ps
ps
ps
t
t
t
t
t
t
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
CK
Notes
23
16
19, 23
23
18
23
10
10
21
22
March 17, 2008
23