is42vm32200g Integrated Silicon Solution, Inc., is42vm32200g Datasheet - Page 22

• Manufacturer Part Number: is42vm32200g
• Description: 512k X 32bits X 4banks Low Power Synchronous Dram
• Manufacturer: Integrated Silicon Solution, Inc.

Table12: AC Characteristic (AC operation conditions unless otherwise noted)
CLK Cycle Time
Access time from CLK (pos. edge)
CLK High-Level Width
CLK Low-Level Width
CKE Setup Time
CKE Hold Time
/CS, /RAS, /CAS, /WE, DQM Setup Time
/CS, /RAS, /CAS, /WE, DQM Hold Time
Address Setup Time
Address Hold Time
Data-In Setup Time
Data-In Hold Time
Data-Out High-Impedance Time
from CLK (pos.edge)
Data-Out Low-Impedance Time
Data-Out Hold Time (load)
Data-Out Hold Time (no load)
ACTIVE to PRECHARGE command
PRECHARGE command period
ACTIVE bank a to ACTIVE bank a command
ACTIVE bank a to ACTIVE bank b command
ACTIVE to READ or WRITE delay
READ/WRITE command to READ/WRITE
command
WRITE command to input data delay
Data-in to PRECHARGE command
Data-in to ACTIVE command
DQM to data high-impedance during READs
DQM to data mask during WRITEs
LOAD MODE REGISTER command to ACTIVE
or REFRESH command
Data-out to high-impedance from
PRECHARGE command
Last data-in to burst STOP command
Last data-in to new READ/WRITE command
CKE to clock disable or power-down entry
mode
CKE to clock enable or power-down exit
setup mode
Refresh period (4,096 rows)
AUTO REFRESH period
Exit SELF REFRESH to ACTIVE command
Transition time
Parameter
CL = 3
CL = 2
CL = 3
CL = 2
CL = 3
CL = 2
CL = 3
CL = 2
tROH3
tROH2
tCKED
tDWD
tDQM
Sym
tCMH
tOHN
tMRD
tCKH
tCMS
tRRD
tRCD
tCCD
tDQZ
tCK3
tCK2
tAC3
tAC2
tCKS
tHZ3
tHZ2
tRAS
tDPL
tDAL
tBDL
tCDL
tPED
tRFC
tXSR
tREF
tDH
tOH
tCH
tAS
tAH
tDS
tRP
tRC
tCL
tLZ
tT
Min
6.0
2.5
2.5
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.0
2.5
1.8
0.5
10
42
18
60
12
18
12
30
66
66
1
0
2
0
2
3
2
1
1
1
1
-60
Max
100K
1000
5.5
5.5
1.2
64
8
8
Min
22.5
67.5
22.5
37.5
67.5
67.5
7.5
2.5
2.5
2.0
1.0
2.0
1.0
2.0
1.0
2.0
1.0
1.0
2.5
1.8
0.5
10
45
15
15
1
0
2
0
2
3
2
1
1
1
1
-75
Max
100K
1000
1.2
64
6
8
6
8
Min
2.5
2.5
2.0
1.0
2.0
1.0
2.0
1.0
2.0
1.0
1.0
2.5
1.8
0.5
10
10
40
24
64
20
20
20
40
70
70
1
0
2
0
2
3
2
1
1
1
1
-10
Max
100K
1000
1.2
64
8
8
8
8
IS42VM32200G
Unit
CLK
CLK
CLK
ms
ns
ns
ns
Note
1
2
3
3
4
5
6
6
7
7
6
6
8
6
6
6
9
9
5
5
22