mt48lc16m4a2tg Micron Semiconductor Products, mt48lc16m4a2tg Datasheet - Page 44

• Manufacturer Part Number: mt48lc16m4a2tg
• Description: 64mb X4, X8, X16 Sdram
• Manufacturer: Micron Semiconductor Products

TIMING PARAMETERS
*CAS latency indicated in parentheses.
NOTE: 1. For this example, the burst length = 1, and the CAS latency = 2.
64Mb: x4, x8, x16 SDRAM
64MSDRAM_F.p65 – Rev. F; Pub. 1/03
DQML, DQMU
SYMBOL* MIN MAX MIN MAX MIN MAX MIN MAX UNITS
t
t
t
t
t
t
t
t
t
t
AC(3)
AC(2)
AH
AS
CH
CL
CK(3)
CK(2)
CKH
CKS
COMMAND
A0-A9, A11
BA0, BA1
DQM /
CLK
CKE
A10
DQ
2. READ command not allowed or
3. x16: A8, A9 and A11 = “Don’t Care”
1.5
2.5
2.5
1.5
x8: A9 and A11 = “Don’t Care”
x4: A11 = “Don’t Care”
t CKS
t CMS
1
6
–
1
t AS
t AS
t AS
-6
ACTIVE
T0
ROW
ROW
BANK
5.5
t CMH
t CKH
–
t AH
t AH
t AH
t RCD
t RAS
t RC
0.8
1.5
2.5
2.5
7.5
0.8
1.5
7
-7E
t CK
T1
5.4
5.4
NOP
SINGLE READ – WITH AUTO PRECHARGE
0.8
1.5
2.5
2.5
7.5
0.8
1.5
10
-75
t CL
5.4
6
T2
NOP 2
t
RAS would be violated.
t CH
10
1
2
3
3
8
1
2
-8E
6
6
T3
NOP 2
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ENABLE AUTO PRECHARGE
t CMS
44
COLUMN m 3
BANK
T4
READ
t CMH
CAS Latency
SYMBOL* MIN MAX MIN MAX MIN MAX MIN MAX UNITS
t
t
t
t
t
t
t
t
t
t
CMH
CMS
HZ(3)
HZ(2)
LZ
OH
RAS
RC
RCD
R P
T5
NOP
Micron Technology, Inc., reserves the right to change products or specifications without notice.
1.5
42 120,000
60
18
18
1
1
2
t AC
t RP
-6
5.5
–
D
T6
OUT
0.8
1.5
NOP
37 120,000
60
15
15
1
3
t OH
-7E
m
t HZ
1
64Mb: x4, x8, x16
5.4
5.4
ACTIVE
0.8
1.5
44 120,000
66
20
20
ROW
BANK
T7
ROW
1
3
-75
5.4
6
©2003, Micron Technology, Inc.
SDRAM
50 120,000
70
20
20
1
2
1
3
T8
-8E
NOP
DON’T CARE
UNDEFINED
6
6
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns