mt46v128m8p-6t Micron Semiconductor Products, mt46v128m8p-6t Datasheet - Page 59

• Manufacturer Part Number: mt46v128m8p-6t
• Description: 1gb Ddr Sdram Component
• Manufacturer: Micron Semiconductor Products

Figure 31:
PDF: 09005aef80a2f898/Source: 09005aef82a95a3a
DDR_x4x8x16_Core2.fm - 1Gb DDR: Rev. I, Core DDR: Rev. B 12/07 EN
READ-to-PRECHARGE
Notes:
Command
Command
Command
Address
Address
Address
1. Provided
2. DO n = data-out from column n.
3. BL = 4 or an interrupted burst of 8.
4. Three subsequent elements of data-out appear in the programmed order following DO n.
5. Shown with nominal
6. READ-to-PRECHARGE equals two clocks, which allows two data pairs of data-out; it is also
7. An ACTIVE command to the same bank is only allowed if
DQS
DQS
DQS
CK#
CK#
CK#
DQ
DQ
DQ
CK
CK
CK
precharge to be performed at x number of clock cycles after the READ command, where
x = BL/2.
assumed that
Bank a,
Bank a,
Bank a,
READ
READ
READ
Col n
Col n
Col n
T0
T0
T0
t
RAS (MIN) is met, a READ command with auto precharge enabled would cause a
t
RAS (MIN) is met.
t
CL = 2
AC,
NOP
NOP
NOP
T1
T1
T1
CL = 2.5
t
DQSCK, and
CL = 3
59
(a or all)
(a or all)
(a or all)
Bank a,
Bank a,
Bank a,
T2
PRE
PRE
PRE
T2
T2
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t
DQSQ.
DO
n
T2n
T2n
DO
n
1Gb: x4, x8, x16 DDR SDRAM
T3
NOP
T3
NOP
T3
NOP
DO
n
t RP
t RP
t RP
t
T3n
T3n
T3n
RC (MIN) is met.
Transitioning Data
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T4
NOP
T4
T4
NOP
NOP
T4n
Operations
Bank a,
Bank a,
Bank a,
T5
T5
T5
Row
ACT
ACT
Row
ACT
Row
Don’t Care