參數(shù)資料
型號: UPD44325084F5-E50-EQ2-A
元件分類: SRAM
英文描述: 4M X 8 QDR SRAM, 0.45 ns, PBGA165
封裝: 13 X 15 MM, LEAD FREE, PLASTIC, BGA-165
文件頁數(shù): 14/40頁
文件大?。?/td> 387K
代理商: UPD44325084F5-E50-EQ2-A
21
Data Sheet
M16784EJ4V0DS
μPD44325084, 44325094, 44325184, 44325364
Read and Write Cycle
Parameter
Symbol
-E37
-E40, -E40Y
-E50, -E50Y
Unit
Note
(270 MHz)
(250 MHz)
(200 MHz)
MIN.
MAX.
MIN.
MAX.
MIN.
MAX.
Clock
Average Clock cycle time (K, K#, C, C#)
TKHKH
3.7
8.4
4.0
8.4
5.0
8.4
ns
1
Clock phase jitter (K, K#, C, C#)
TKC var
0.2
0.2
0.2
ns
2
Clock HIGH time (K, K#, C, C#)
TKHKL
1.5
1.6
2.0
ns
Clock LOW time (K, K#, C, C#)
TKLKH
1.5
1.6
2.0
ns
Clock HIGH to Clock# HIGH
TKHK#H
1.7
1.8
2.2
ns
(K
→ K#, C → C#)
Clock# HIGH to Clock HIGH
TK#HKH
1.7
1.8
2.2
ns
(K#
→ K, C# → C)
Clock to data clock
250 to 270 MHz
TKHCH
0
1.65
ns
(K
→ C, K# → C#)
200 to 250 MHz
0
1.8
0
1.8
167 to 200 MHz
0
2.3
0
2.3
0
2.3
133 to 167 MHz
0
2.8
0
2.8
0
2.8
< 133 MHz
0
3.55
0
3.55
0
3.55
DLL/PLL lock time (K, C)
TKC lock
1,024
1,024
1,024
Cycle
3
K static to DLL/PLL reset
TKC reset
30
30
30
ns
4
Output Times
C, C# HIGH to output valid
TCHQV
0.45
0.45
0.45
ns
C, C# HIGH to output hold
TCHQX
– 0.45
– 0.45
– 0.45
ns
C, C# HIGH to echo clock valid
TCHCQV
0.45
0.45
0.45
ns
C, C# HIGH to echo clock hold
TCHCQX
– 0.45
– 0.45
– 0.45
ns
CQ, CQ# HIGH to output valid
TCQHQV
0.3
0.3
0.35
ns
5
CQ, CQ# HIGH to output hold
TCQHQX
– 0.3
– 0.3
– 0.35
ns
5
C HIGH to output High-Z
TCHQZ
0.45
0.45
0.45
ns
C HIGH to output Low-Z
TCHQX1
– 0.45
– 0.45
– 0.45
ns
Setup Times
Address valid to K rising edge
TAVKH
0.5
0.5
0.6
ns
6
Control inputs (R#, W#) valid to K rising edge
TIVKH
0.5
0.5
0.6
ns
6
Data inputs and write data select
TDVKH
0.35
0.35
0.4
ns
6
inputs (BWx#, NWx#) valid to
K, K# rising edge
Hold Times
K rising edge to address hold
TKHAX
0.5
0.5
0.6
ns
6
K rising edge to control inputs (R#, W#) hold
TKHIX
0.5
0.5
0.6
ns
6
K, K# rising edge to data inputs and
TKHDX
0.35
0.35
0.4
ns
6
write data select inputs (BWx#, NWx#)
hold
<R>
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