參數(shù)資料
型號: CYDD18S72V18-167BGI
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: SRAM
英文描述: 256K X 72 DUAL-PORT SRAM, 9 ns, PBGA484
封裝: 23 X 23 MM, 2.03 MM HEIGHT, 1 MM PITCH, PLASTIC, BGA-484
文件頁數(shù): 21/53頁
文件大小: 2422K
代理商: CYDD18S72V18-167BGI
FullFlex
Document #: 38-06072 Rev. *I
Page 28 of 53
tCYC (PIPELINED) C Clock Cycle Time for Pipelined Mode 4.00[34]
10.00
5.00[34]
10.00
6.00[34]
10.00
ns
tCKD
C Clock Duty Time
45
55
45
55
45
55
%
tSD
Data Input Set-up
Time to C Rise
HSTL
1.8V LVCMOS
1.20[32,34]
1.50[32,34]
1.70[32,34]
ns
2.5V LVCMOS
3.3V LVTTL
1.45[32,34]
1.75[32,34]
1.95[32,34]
ns
tHD
Data Input Hold Time after C Rise
0.50
ns
tSAC
Address & Control
Input Set-up Time
to C Rise
HSTL
1.8V LVCMOS
1.20[32,34]
1.50[32,34]
1.70[32,34]
ns
2.5V LVCMOS
3.3V LVTTL
1.45[32,34]
1.75[32,34]
1.95[32,34]
ns
tHAC
Address & Control Input Hold Time
after C Rise
0.50
0.60
ns
tOE
Output Enable to Data Valid
3.40[32,34]
4.40[32,34]
5.00[32,34] ns
tOLZ[31]
OE to Low Z
1.00
ns
tOHZ[31]
OE to High Z
1.00
3.40[32,34]
1.00
4.40[32,34]
1.00
5.00[32,34] ns
tCD2[35]
C Rise to DQ Valid for Pipelined Mode
(LowSPD = 1)
2.64[32,34]
3.30[32,34]
4.00[32,34] ns
tCA2
C Rise to Address Readback Valid for
Pipelined Mode
4.00[34]
5.00[34]
6.00[34]
ns
tDC[35]
DQ Output Hold after C Rise
1.00
ns
tCCQ[35]
C Rise to CQ Rise
1.00
2.64[34]
1.00
3.30[34]
1.00
4.00[34]
ns
tCQHQV[35]
Echo Clock (CQ)
High to Output Valid
HSTL
1.8V LVCMOS
0.60[32]
0.70[32]
0.80[32]
ns
2.5V LVCMOS
3.3V LVTTL
0.70[32]
0.80[32]
0.90[32]
ns
tCQHQX[35]
Echo Clock (CQ)
High to Output Hold
HSTL
1.8V LVCMOS
–0.60
–0.70
–0.80
ns
2.5V LVCMOS
3.3V LVTTL
–0.75
–0.85
–0.95
ns
tCKHZ2[31,35]
C Rise to DQ Output High Z in
Pipelined Mode
1.00
2.64 [32,
1.00
3.30[32,34]
1.00
4.00[32,34] ns
tCKLZ2[31,35]
C Rise to DQ Output Low Z in
Pipelined Mode
1.00
ns
tAC
Address Output Hold after C Rise
1.00
ns
tCKHZA2[31]
C Rise to Address Output High Z for
Pipelined Mode
1.00
4.00[34]
1.00
5.00[34]
1.00
6.00[34]
ns
tCKLZA[31]
C Rise to Address Output Low Z
1.00
ns
tSCINT
C Rise to CNTINT Low
1.00
2.64[34]
1.00
3.30[34]
1.00
4.00[34]
ns
tRCINT
C Rise to CNTINT High
1.00
2.64[34]
1.00
3.30[34]
1.00
4.00[34]
ns
tSINT
C Rise to INT Low
0.50
6.00[34]
0.50
7.00[34]
0.50
8.00[34]
ns
tRINT
C Rise to INT High
0.50
6.00[34]
0.50
7.00[34]
0.50
8.00[34]
ns
tBSY
C Rise to BUSY Valid
1.00
2.64[34]
1.00
3.30[34]
1.00
4.00[34]
ns
tJIT
Clock Input Cycle to Cycle Jitter
+/- 200
ps
Table 16.SDR Mode with Pipeline Mode, DLL Enabled (LOWSPD-HIGH)[33] (continued)
Parameter
Description
–200[27]
–167[27]
–133
Unit
Min.
Max.
Min.
Max.
Min.
Max.
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