k4j55323qg Samsung Semiconductor, Inc., k4j55323qg Datasheet - Page 16

• Manufacturer Part Number: k4j55323qg
• Description: 256mbit Gddr3 Sdram
• Manufacturer: Samsung Semiconductor, Inc.

7.5 MANUFACTURERS VENDOR CODE AND REVISION IDENTIFICATION
and bits A0-A9 and A11 set to the desired values. When the V function is enabled the GDDR3 SDRAM will provide its manufacturers
vendor code on DQ[3:0] and revision identification on DQ[7:4]
COMMAND
K4J55323QG
The Manufacturers Vendor Code, V, is selected by issuing a EXTENDED MODE REGISTER SET command with bits A10 set to one,
DQ[3:0]
RES
CKE
CK
CK
Vendor ID Read
Manufacturer
t
t
IS
IS
Reserved
Samsung
T0
Infineon
Elpida
Nanya
Etron
t
t
High
IH
IH
t
CH
t
CL
Precharge
All Banks
T1
DQ[3:0]
0
1
2
3
4
5
t
RP
w/ specified value
Dummy_MRS
Ta2
Manufacturer
Reserved
Reserved
Winbond
t
ESMT
Mosel
MRD
Hynix
Vendor_ID
EMRS
On
Tb3
- 16 /53 -
>20ns
t
DQ[3:0]
MRD
DON’T CARE
Vendor Code
A
B
6
7
8
9
Vendor_ID
EMRS
Tc4
Off
>20ns
t
MRD
Manufacturer
Reserved
Reserved
Reserved
Micron
MRS
Td5
TRANSITIONING DATA
256M GDDR3 SDRAM
t
MRD
Precharge
All Banks
Rev. 1.3 June 2006
200 cycle
DQ[3:0]
Te6
C
D
E
F
t
RP
Auto Refresh
1st
Tf7