HYB18T256161BF Datasheet, PDF (10/40 Pages) Qimonda AG – 256-Mbit x16 DDR2 SDRAM

Internet Data Sheet
HYB18T256161BF–20/25/28
256-Mbit Double-Data-Rate-Two SDRAM
3
Functional Description
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3' :5 '//70 &/ %7 %/
UHJDGGU Z Z ZZ Z Z Z
Field Bits Type¹⁾
BA1 14 reg. addr.
BA0 13
PD
12 w
WR [11:9] w
DLL 8
w
TM
7
w
CL
[6:4] w
Description
TABLE 6
Mode Register Definition (BA[1:0] = 00_B)
Bank Address [1]
0_B BA1 Bank Address
Bank Address [0]
0_B BA0 Bank Address
Active Power-Down Mode Select
0_B PD Fast exit
1_B PD Slow exit
Write Recovery²⁾
Note: All other bit combinations are illegal.
001_B WR 2
010_B WR 3
011_B WR 4
100_B WR 5
101_B WR 6
DLL Reset
0_B DLL No
1_B DLL Yes
Test Mode
0_B TM Normal Mode
1_B TM Vendor specific test mode
CAS Latency
Note: All other bit combinations are illegal.
011_B CL 3
100_B CL 4
101_B CL 5
110_B CL 6
111_B CL 7
Rev. 1.20, 2007-06
10
11232006-QP6X-6EM0