MT16VDDF12864HY-40BD2 Micron Technology Inc, MT16VDDF12864HY-40BD2 Datasheet - Page 11

• Manufacturer Part Number: MT16VDDF12864HY-40BD2
• Description: MODULE SDRAM DDR 1GB 200SODIMM
• Manufacturer: Micron Technology Inc

Specifications of MT16VDDF12864HY-40BD2

• Memory Type: DDR SDRAM
• Memory Size: 1GB
• Speed: 400MT/s
• Package / Case: 200-SODIMM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Extended Mode Register
beyond those controlled by the mode register; these
additional functions are DLL enable/disable and out-
put drive strength. These functions are controlled via
the bits shown in Figure 7, Extended Mode Register
Definition Diagram, on page 11. The extended mode
register is programmed via the LOAD MODE REGIS-
TER command to the mode register (with BA0 = 1 and
BA1 = 0) and will retain the stored information until it
is programmed again or the device loses power. The
enabling of the DLL should always be followed by a
LOAD MODE REGISTER command to the mode regis-
ter (BA0/ BA1 both LOW) to reset the DLL.
all device banks are idle and no bursts are in progress,
and the controller must wait the specified time before
initiating any subsequent operation. Violating either of
these requirements could result in unspecified opera-
tion.
DLL Enable/Disable
DLL enable is required during power-up initialization
and upon returning to normal operation after having
disabled the DLL for the purpose of debug or evalua-
tion. (When the device exits self refresh mode, the DLL
pdf: 09005aef80b57837, source: 09005aef80b577fa
DDAF16C64_128x64HG.fm - Rev. D 9/04 EN
The extended mode register controls functions
The extended mode register must be loaded when
The DLL must be enabled for normal operation.
11
is enabled automatically.) Any time the DLL is enabled,
200 clock cycles with CKE HIGH must occur before a
READ command can be issued.
NOTE:
1. BA1 and BA0 (E14 and E13) must be “0, 1” to select the
2. QFC# is not supported.
E13
0
–
Extended Mode Register (vs. the base Mode Register).
0 1
E12
Figure 7: Extended Mode Register
14
BA1 BA0
0
–
512MB, 1GB (x64, DR) PC3200
Micron Technology, Inc., reserves the right to change products or specifications without notice.
1 1
13
E11
0
–
12
E10
A12
0
–
11
A11
E9
0
–
Definition Diagram
10
E8
A10
0
–
200-PIN DDR SODIMM
Operating Mode
E7
9
0
–
A9
E6 E5
0
–
8
A8
0
–
7
A7 A6 A5 A4 A3
E4
0
–
6
E3
0
–
5
E2
0
–
4
2
3
E1,
Valid
–
2
E0
A2 A1 A0
DS
©2004 Micron Technology, Inc.
1
E1
0
1
DLL
Operating Mode
Reserved
Reserved
0
E0
0
1
Drive Strength
Extended Mode
Register (Ex)
Address Bus
Reduced
Normal
Disable
Enable
DLL