参数资料
型号: MT46V64M8
厂商: Micron Technology, Inc.
英文描述: 16 Meg x 8 x 4 banks DDR SDRAM(16M x 8 x 4组,双数据速率同步动态RAM)
中文描述: 16梅格× 8 × 4银行DDR SDRAM内存(1,600 × 8 × 4组,双数据速率同步动态RAM)的
文件页数: 48/70页
文件大小: 2524K
代理商: MT46V64M8
48
512Mb: x4, x8, x16 DDR SDRAM
512Mx4x8x16DDR_A.p65
Rev. A; Pub 10/00
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2000, Micron Technology, Inc.
512Mb: x4, x8, x16
DDR SDRAM
ADVANCE
(continued on following page)
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Notes: 1
5, 14-17, 33; notes appear on pages 50
53) (0
°
C
T
A
+70
°
C; V
DD
Q = +2.5V ±0.2V, V
DD
= +2.5V ±0.2V)
AC CHARACTERISTICS
PARAMETER
Access window of DQs from CK/CK#
CK high-level width
CK low-level width
Clock cycle time
-7
-75
-8
SYMBOL
t
AC
t
CH
t
CL
t
CK(2.5)
t
CK(2)
t
DH
t
DS
t
DIPW
t
DQSCK
t
DQSH
t
DQSL
t
DQSQ
t
DQSQA
t
DQSS
t
DSS
t
DSH
t
HP
t
HZ
t
LZ
t
IH
F
t
IS
F
t
IH
S
t
IH
S
t
IPW
t
MRD
t
QH
MIN
-0.75
0.45
0.45
7
7.5
0.5
0.5
1.75
-0.75
0.35
0.35
MAX
+0.75
0.55
0.55
12
12
MIN
-0.75
0.45
0.45
7.5
10
0.5
0.5
1.75
-0.75
0.35
0.35
MAX
+0.75
0.55
0.55
12
12
MIN
-0.8
0.45
0.45
8
10
0.6
0.6
2
-0.8
0.35
0.35
MAX
+0.8
0.55
0.55
12
12
UNITS NOTES
ns
t
CK
t
CK
ns
ns
ns
ns
ns
ns
t
CK
t
CK
ns
ns
t
CK
t
CK
t
CK
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
30
30
52
52
CL = 2.5
CL = 2
DQ and DM input hold time relative to DQS
DQ and DM input setup time relative to DQS
DQ and DM input pulse width (for each input)
Access window of DQS from CK/CK#
DQS input high pulse width
DQS input low pulse width
DQS-DQ skew, DQS to last DQ valid, per group, per access
DQS-DQ skew, first DQS to last DQ valid, per access
Write command to first DQS latching transition
DQS falling edge to CK rising - setup time
DQS falling edge from CK rising - hold time
Half clock period
Data-out high-impedance window from CK/CK#
Data-out low-impedance window from CK/CK#
Address and control input hold time (fast slew rate)
Address and control input setup time (fast slew rate)
Address and control input hold time (slow slew rate)
Address and control input setup time (slow slew rate)
Address and control input pulse width
LOAD MODE REGISTER command cycle time
DQ-DQS hold, DQS to first DQ to go non-valid, per access
26, 31
26, 31
31
+0.75
+0.75
+0.8
0.5
0.7
1.25
0.5
0.7
1.25
0.6
0.8
1.25
25, 26
36
0.75
0.2
0.2
t
CH,
t
CL
-0.75
-0.75
.90
.90
1
1
2.2
15
t
HP
-
t
QHS
0.75
0.2
0.2
t
CH,
t
CL
-0.75
-0.75
.90
.90
1
1
2.2
15
t
HP
-
t
QHS
0.75
0.2
0.2
t
CH,
t
CL
-0.8
-0.8
1.1
1.1
1.1
1.1
2.5
16
t
HP
-
t
QHS
34
18
18
14
14
14
14
+0.75
+0.75
+0.75
+0.75
+0.8
+0.8
25, 26,
34
Data hold skew factor
ACTIVE to PRECHARGE command
ACTIVE to READ with Auto precharge command
ACTIVE to ACTIVE/AUTO REFRESH command period
AUTO REFRESH command period
ACTIVE to READ or WRITE delay
t
QHS
t
RAS
t
RAP
t
RC
t
RFC
t
RCD
0.75
120,000
0.75
120,000
1
ns
ns
ns
ns
ns
ns
45
15
60
67
15
45
20
65
75
20
50
20
70
80
20
120,000
35
50
PRECHARGE command period
t
RP
t
RPRE
t
RPST
t
RRD
15
20
20
ns
t
CK
t
CK
t
CK
DQS read preamble
DQS read postamble
ACTIVE bank
a
to ACTIVE bank
b
command
0.9
0.4
2
1.1
0.6
0.9
0.4
2
1.1
0.6
0.9
0.4
2
1.1
0.6
42
相关PDF资料
PDF描述
MT48LC16M8A1TG SYNCHRONOUS DRAM
MT48LC32M4A1 ECONOLINE: RSZ/P - 1kVDC
MT48LC32M4A2 SYNCHRONOUS DRAM
MT48LC32M4A1TG SYNCHRONOUS DRAM
MT48LC8M16A1TG SYNCHRONOUS DRAM
相关代理商/技术参数
参数描述