MT48LC64M4A2 Micron Technology, MT48LC64M4A2 Datasheet - Page 43

• Manufacturer Part Number: MT48LC64M4A2
• Description: (MT48Lxxxx) SYNCHRONOUS DRAM
• Manufacturer: Micron Technology

TIMING PARAMETERS
*CAS latency indicated in parentheses.
256Mb: x4, x8, x16 SDRAM
256MSDRAM_E.p65 – Rev. E; Pub. 3/02
A0-A9, A11, A12
SYMBOL*
t
t
t
t
t
t
AH
AS
CH
CL
CK (3)
CK (2)
DQML, DQMU
COMMAND
DQM /
BA0, BA1
A10
CLK
CKE
DQ
MIN
0.8
1.5
2.5
2.5
7.5
7
Precharge all
High-Z
active banks
t CKS
t CMS
t AS
SINGLE BANK
ALL BANKS
-7E
PRECHARGE
BANK(S)
T0
MAX
t AH
t CKH
t CMH
t CK
MIN
0.8
1.5
2.5
2.5
7.5
10
t RP
T1
NOP
-75
MAX
AUTO REFRESH MODE
T2
REFRESH
UNITS
AUTO
ns
ns
ns
ns
ns
ns
t CH
t RFC
43
NOP
(
(
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(
(
)
SYMBOL*
t
t
t
t
t
t
)
)
)
CKH
CKS
CMH
CMS
RFC
RP
NOP
Micron Technology, Inc., reserves the right to change products or specifications without notice.
t CL
Tn + 1
MIN
0.8
1.5
0.8
1.5
66
15
REFRESH
AUTO
-7E
MAX
256Mb: x4, x8, x16
t
RFC
NOP
(
(
(
(
(
)
(
(
(
(
)
(
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(
)
)
)
(
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(
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(
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MIN
NOP
0.8
1.5
0.8
1.5
66
20
-75
©2002, Micron Technology, Inc.
MAX
To + 1
SDRAM
ACTIVE
ROW
ROW
BANK
DON’T CARE
UNITS
ns
ns
ns
ns
ns
ns