MT48LC4M16A2P-75G Datasheet, PDF (23/83 Pages) Micron Technology – SDR SDRAM MT48LC16M4A2 – 4 Meg x 4 x 4 Banks MT48LC8M8A2 – 2 Meg x 8 x 4 Banks MT48LC4M16A2 – 1 Meg x 16 x 4 Banks

64Mb: x4, x8, x16 SDRAM
Electrical Specifications – AC Operating Conditions
Electrical Specifications – AC Operating Conditions
Table 12: Electrical Characteristics and Recommended AC Operating Conditions
Notes 1–5 apply to all parameters and conditions
-6A^{6, 7}
Parameter
Symbol Min Max
Access time from CL = 3 ^tAC(3)
–
5.4
CLK (positive
CL = 2 ^tAC(2)
–
7.5
edge)
CL = 1 ^tAC(1)
–
17
Address hold time
t_AH
0.8
–
Address setup time
t_AS
1.5
–
CLK high-level width
t_CH
2.5
–
CLK low-level width
t_CL
2.5
–
Clock cycle time CL = 3 ^tCK(3)
6
–
CL = 2 ^tCK(2)
10
–
CL = 1 ^tCK(1)
20
–
CKE hold time
t_CKH
0.8
–
CKE setup time
t_CKS
1.5
–
CS#, RAS#, CAS#, WE#,
DQM hold time
t_CMH
0.8
CS#, RAS#, CAS#, WE#,
t_CMS
1.5
–
DQM setup time
Data-in hold time
t_DH
0.8
–
Data-in setup time
t_DS
1.5
–
Data-out High-Z CL = 3 ^tHZ(3)
–
5.4
time
CL = 2 ^tHZ(2)
–
7.5
CL = 1 ^tHZ(1)
–
17
Data-out Low-Z time
t_LZ
1
–
Data-out hold time
(load)
t_OH
3
–
Data-out hold time (no
t_OHn
1.8
–
load)
ACTIVE-to-PRECHARGE
command
t_RAS
42 120,000
ACTIVE-to-ACTIVE com-
t_RC
60
–
mand period
ACTIVE-to-READ or
WRITE delay
t_RCD
18
–
Refresh period (4096
rows)
t_REF
–
64
Refresh period – automo- ^tREF_AT
–
16
tive (4096 rows)
AUTO REFRESH period
t_RFC
60
–
-6
Min Max
–
5.5
–
7.5
–
17
1
–
1.5
–
2.5
–
2.5
–
6
–
10
–
20
–
1
–
1.5
–
1
–
1.5
–
1
–
1.5
–
–
5.5
–
7.5
–
17
1
–
2
–
1.8
–
42 120,000
60
–
18
–
–
64
–
16
60
–
-7E
Min Max
–
5.4
–
5.4
–
–
0.8
–
1.5
–
2.5
–
2.5
–
7
–
7.5
–
–
–
0.8
–
1.5
–
0.8
–
1.5
–
0.8
–
1.5
–
–
5.4
–
5.4
–
–
1
–
3
–
1.8
–
37 120,000
60
–
15
–
–
64
–
16
66
–
-75
Min Max
–
5.4
–
6
–
–
0.8
–
1.5
–
2.5
–
2.5
–
7.5
–
10
–
–
–
0.8
–
1.5
–
0.8
–
Note
Unit s
ns 8
ns 8
ns 8
ns
ns
ns
ns
ns 9
ns 9
ns 9
ns
ns
ns
1.5
–
ns
0.8
–
ns
1.5
–
ns
–
5.4 ns 10
–
6
ns 10
–
–
ns 10
1
–
ns
3
–
ns
1.8
–
ns 11
44 120,000 ns
66
–
ns 12
20
–
ns
–
64 ms
–
16 ms
66
–
ns
PDF: 09005aef80725c0b
64mb_x4x8x16_sdram.pdf - Rev. U 05/13 EN
23
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