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MT48LC4M32B2TG-6A Datasheet, PDF (20/79 Pages) Alliance Semiconductor Corporation – MT48LC4M32B2 – 1 Meg x 32 x 4 Banks
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128Mb: x32 SDRAM
Electrical Specifications – AC Operating Conditions
Electrical Specifications – AC Operating Conditions
Table 12: Electrical Characteristics and Recommended AC Operating Conditions
Notes 1–6 apply to all parameters and conditions
Parameter
Access time from CLK (positive edge) CL = 3
CL = 2
CL = 1
Address hold time
Address setup time
CLK high-level width
CLK low-level width
Clock cycle time
CL = 3
CL = 2
CL = 1
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-Z time
CL = 3
CL = 2
CL = 1
Data-out Low-Z time
Data-out hold time (load)
Data-out hold time (no load)
ACTIVE-to-PRECHARGE command
ACTIVE-to-ACTIVE command period
AUTO REFRESH period
ACTIVE-to-READ or WRITE delay
Refresh period (4096 rows)
Refresh period – automotive (4096 rows)
PRECHARGE command period
ACTIVE bank a to ACTIVE bank b command
Transition time
WRITE recovery time
Symbol
tAC(3)
tAC(2)
tAC(1)
tAH
tAS
tCH
tCL
tCK(3)
tCK(2)
tCK(1)
tCKH
tCKS
tCMH
tCMS
tDH
tDS
tHZ(3)
tHZ(2)
tHZ(1)
tLZ
tOH
tOHn
tRAS
tRC
tRFC
tRCD
tREF
tREFAT
tRP
tRRD
tT
tWR
-6A9
-6
-7
Min Max Min Max Min Max Unit
– 5.4 – 5.5 – 5.5 ns
– 7.5 – 7.5 –
8 ns
– 17 – 17 – 17 ns
0.8 – 1.0 – 1.0 – ns
1.5 – 1.5 –
2
– ns
2.5 – 2.5 – 2.75 – ns
2.5 – 2.5 – 2.75 – ns
6
–
6
–
7
– ns
10
– 109 –
10
–
ns
20
– 209 –
20
–
ns
0.8 – 1.0 – 1.0 – ns
1.5 – 1.5 –
2
– ns
0.8 – 1.0 – 1.0 – ns
1.5 – 1.5 –
2
– ns
0.8 – 1.0 – 1.0 – ns
1.5 – 1.5 –
2
– ns
– 5.4 – 5.5 – 5.5 ns
– 7.5 – 7.5 –
8 ns
– 17 – 17 – 17 ns
1
–
1
–
1
– ns
3
–
2
– 2.5 – ns
1.8 – 1.8 – 1.8 – ns
42 120,0 42 120,0 42 120,0 ns
00
00
00
60 – 60 – 70 – ns
60 – 60 – 70 – ns
18 – 18 – 20 – ns
– 64 – 64 – 64 ms
– 16 – 16 – 16 ms
18 – 18 – 20 – ns
12 – 12 – 15 – ns
0.3 1.2 0.3 1.2 0.3 1.2 ns
1
–
1
–
1
– tCK
CLK
CLK
CLK
+ 7ns
+ 6ns
+ 7ns
12 – 12 – 14 – ns
Notes
10
10
10
8
8
8
7
11
12
3
13
14
PDF: 09005aef80872800
128mb_x32_sdram.pdf - Rev. V 03/16 EN
20
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2001 Micron Technology, Inc. All rights reserved.
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