參數資料
型號: MT48LC4M32LFFC
廠商: Micron Technology, Inc.
英文描述: SYNCHRONOUS DRAM
中文描述: 同步DRAM
文件頁數: 32/52頁
文件大?。?/td> 1281K
代理商: MT48LC4M32LFFC
32
128Mb: x32 SDRAM
128MbSDRAMx32_D.p65 – Rev. D; Pub. 6/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2002, Micron Technology, Inc.
128Mb: x32
SDRAM
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Notes: 5, 6, 8, 9, 11; notes appear on page 34)
AC CHARACTERISTICS
PARAMETER
Access time from CLK
(pos. edge)
-6
-7
SYMBOL
t
AC (3)
t
AC (2)
t
AC (1)
t
AH
t
AS
t
CH
t
CL
t
CK (3)
t
CK (2)
t
CK (1)
t
CKH
t
CKS
t
CMH
t
CMS
t
DH
t
DS
t
HZ (3)
t
HZ (2)
t
HZ (1)
t
LZ
t
OH
t
RAS
t
RC
t
RFC
t
RCD
t
REF
t
RP
t
RRD
t
T
t
WR
MIN
MAX
5.5
7.5
17
MIN
MAX
5.5
8
17
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ns
ns
ns
t
CK
NOTES
CL = 3
CL = 2
CL = 1
Address hold time
Address setup time
CLK high-level width
CLK low-level width
Clock cycle time
1
1
2
1.5
2.5
2.5
6
10
20
1
1.5
1
1.5
1
1.5
2.75
2.75
7
10
20
1
2
1
2
1
2
CL = 3
CL = 2
CL = 1
23
23
23
CKE hold time
CKE setup time
CS#, RAS#, CAS#, WE#, DQM hold time
CS#, RAS#, CAS#, WE#, DQM setup time
Data-in hold time
Data-in setup time
Data-out high-impedance time
CL = 3
CL = 2
CL = 1
5.5
7.5
17
5.5
8
17
10
10
10
Data-out low-impedance time
Data-out hold time
ACTIVE to PRECHARGE command
ACTIVE to ACTIVE command period
AUTO REFRESH period
ACTIVE to READ or WRITE delay
Refresh period (4,096 rows)
PRECHARGE command period
ACTIVE bank
a
to ACTIVE bank
b
command
Transition time
WRITE recovery time
1
2
42
60
60
18
1
2.5
42
70
70
20
120K
120K
64
64
18
12
0.3
20
14
0.3
1CLK+
7ns
14ns
70
25
7
24
1.2
1.2
1CLK+
6ns
12ns
70
ns
ns
27
20
Exit SELF REFRESH to ACTIVE command
t
XSR
CAPACITANCE
(Note: 2)
PARAMETER
Input Capacitance: CLK
Input Capacitance: All other input-only pins
Input/Output Capacitance: DQs
SYMBOL
C
I
1
C
I
2
C
IO
MIN
2.5
2.5
4.0
MAX
4.0
4.0
6.5
UNITS
pF
pF
pF
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