參數(shù)資料
型號: MT48LC16M16A2
廠商: Micron Technology, Inc.
英文描述: SYNCHRONOUS DRAM
中文描述: 同步DRAM
文件頁數(shù): 37/62頁
文件大小: 1517K
代理商: MT48LC16M16A2
37
256Mb: x4, x8, x16 SDRAM
256MSDRAM_E.p65
Rev. E; Pub. 3/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2002, Micron Technology, Inc.
256Mb: x4, x8, x16
SDRAM
CAPACITANCE
(Note: 2; notes appear on page 37)
PARAMETER - TSOP “TG” Package
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
3.5
3.8
6.0
UNITS NOTES
pF
pF
pF
29
30
31
ELECTRICAL CHARACTERISTICS AND RECOMMENDED
AC OPERATING CONDITIONS
(Notes: 5, 6, 8, 9, 11; notes appear on page 37)
AC CHARACTERISTICS
PARAMETER
Access time from
CLK (pos. edge)
Address hold time
Address setup time
CLK high-level width
CLK low-level width
Clock cycle time
-7E
-75
SYMBOL
t
AC(3)
t
AC(2)
t
AH
t
AS
t
CH
t
CL
t
CK(3)
t
CK(2)
t
CKH
t
CKS
t
CMH
t
CMS
t
DH
t
DS
t
HZ(3)
t
HZ(2)
t
LZ
t
OH
t
OH
N
t
RAS
t
RC
t
RCD
t
REF
t
RFC
t
RP
t
RRD
t
T
t
WR
MIN
MAX
5.4
5.4
MIN
MAX
5.4
6
UNITS
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
ns
ns
NOTES
27
CL = 3
CL = 2
0.8
1.5
2.5
2.5
7
7.5
0.8
1.5
0.8
1.5
0.8
1.5
0.8
1.5
2.5
2.5
7.5
10
0.8
1.5
0.8
1.5
0.8
1.5
CL = 3
CL = 2
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
Data-out low-impedance time
Data-out hold time (load)
Data-out hold time (no load)
ACTIVE to PRECHARGE command
ACTIVE to ACTIVE command period
ACTIVE to READ or WRITE delay
Refresh period (8,192 rows)
AUTO REFRESH period
PRECHARGE command period
ACTIVE bank
a
to ACTIVE bank
b
command
Transition time
WRITE recovery time
CL = 3
CL = 2
5.4
5.4
5.4
6
10
10
1
3
1
3
1.8
37
60
15
1.8
44
66
20
28
120,000
120,000
64
64
66
15
14
0.3
66
20
15
0.3
1.2
1.2
7
24
1 CLK+
7ns
14
67
1 CLK+
7.5ns
15
75
ns
ns
25
20
Exit SELF REFRESH to ACTIVE command
t
XSR
PARAMETER - FBGA “FB” and “FG” Package
Input Capacitance: CLK
Input Capacitance: All other input-only pins
Input/Output Capacitance: DQs
SYMBOL
C
I
1
C
I
2
C
IO
MIN
1.5
1.5
3.0
MAX
3.5
3.8
6.0
UNITS NOTES
pF
pF
pF
34
35
36
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