参数资料
型号: W981216BH-6
厂商: WINBOND ELECTRONICS CORP
元件分类: DRAM
英文描述: 8M X 16 SYNCHRONOUS DRAM, 5 ns, PDSO54
封装: 0.400 INCH, 0.80 MM PITCH, TSOP2-54
文件页数: 42/43页
文件大小: 1380K
代理商: W981216BH-6
W981216BH
- 8 -
AC Characteristics and Operating Condition
(Vcc = 3.3V
±0.3V, TA = 0 to 70°C for -6/-7/-75/75L/-8H, TA = -40 to 85°C for 75I ; Notes: 5, 6, 7, 8)
PARAMETER
SYM.
-6
-7
-75/75L/75I
-8H
UNIT
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Ref/Active to Ref/Active
Command Period
tRC
57
65
68
Active to Pre-charge Command
Period
tRAS
42
100000
42
100000
45
100000
48
100000
nS
Active to Read/Write Command
Delay Time
tRCD
15
20
Read/Write(a) to Read/Write(b)
Command Period
tCCD
1
Cycle
Pre-charge to Active Command
Period
tRP
15
20
Active(a) to Active(b) Command
Period
tRRD
12
15
20
Write Recovery Time
CL* = 2
tWR
7.5
10
CL* = 3
6
7
7.5
8
CLK Cycle Time
CL* = 2
tCK
7.5
1000
7.5
1000
10
1000
10
1000
CL* = 3
6
1000
7
1000
7.5
1000
8
1000
CLK High Level width
tCH
2
2.5
3
CLK Low Level width
tCL
2
2.5
3
Access Time from
CL* = 2
tAC
5.4
6
CLK
CL* = 3
5
5.4
6
nS
Output Data Hold Time
tOH
2.75
3
Output Data High Impedance
Time
tHZ
2.75
6
3
7
3
7.5
3
8
Output Data Low Impedance Time
tLZ
0
Power Down Mode Entry Time
tSB
0
6
0
7
0
7.5
0
8
Transition Time of CLK
(Rise and Fall)
tT
0.5
10
0.5
10
0.5
10
0.5
10
Data-in Set-up Time
tDS
1.5
2
Data-in Hold Time
tDH
0.8
1
Address Set-up Time
tAS
1.5
2
Address Hold Time
tAH
0.8
1
CKE Set-up Time
tCKS
1.5
2
CKE Hold Time
tCKH
0.8
1
Command Set-up Time
tCMS
1.5
2
Command Hold Time
tCMH
0.8
1
Refresh Time
tREF
64
mS
Mode Register Set Cycle Time
tRSC
12
14
15
16
nS
*CL = CAS Latency
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