K4D261638F Datasheet, PDF (17/18 Pages) Samsung semiconductor – 128Mbit GDDR SDRAM

K4D261638F
128M GDDR SDRAM
Simplified Timing @ BL=4
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CK, CK
BA[1:0] BAa
BAa
BAa
BAa
BAa BAb
BAb
A8/AP Ra
ADDR
(A0~A7
Ra
Ca
,A9~A11)
WE
DQS
Ra
Rb
Ra
Ca
Rb
Cb
DQ
Da0 Da1 Da2 Da3
DM
Da0 Da1 Da2 Da3
Db0 Db1 Db2 Db3
COM ACT_A
WR_A
t_RCD
t_RAS
t_RC
Normal Write Burst
(@ BL=4)
PRECH
t_RP
ACT_A
WR_A
ACT_B
WR_B
t_RRD
Multi Bank Interleaving Write Burst
(@ BL=4)
- 17 -
Rev. 1.2 (Jan. 2004)