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參數(shù)資料
| 型號： | EDI9LC644V-BC |
| 英文描述： | Programmable VCOM; Temperature Range: -40°C to 85°C; Package: 12-DFN T&R |
| 中文描述： | 的SSRAM / SDRAM的MCP的 |
| 文件頁數(shù)： | 21/25頁 |
| 文件大小： | 1551K |
| 代理商： | EDI9LC644V-BC |
5
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
EDI9LC644V
SSRAM AC CHARACTERISTICS (EDI9LC644V)
Symbol
200MHz
166MHz
150MHz
133MHz
Parameter
Min
Max
Min
Max
Min
Max
Min
Max
Units
Clock Cycle Time
tKHKH
5678
ns
Clock HIGH Time
tKLKH
1.6
2.4
2.6
2.8
ns
Clock LOW Time
tKHKL
1.6
2.4
2.6
2.8
ns
Clock to output valid
tKHQV
2.5
3.5
3.8
4.0
ns
Clock to output invalid
tKHQX
1.5
ns
Clock to output on Low-Z
tKQLZ
0000
ns
Clock to output in High-Z
tKQHZ
1.5
3
1.5
3.5
1.5
3.8
1.5
4.0
ns
Output Enable to output valid
tOELQV
2.5
3.5
3.8
4.0
ns
Output Enable to output in Low-Z
tOELZ
0000
ns
Output Enable to output in High-Z
tOEHZ
3.0
3.5
3.8
ns
Address, Control, Data-in Setup Time to Clock
tS
1.5
ns
Address, Control, Data-in Hold Time to Clock
tH
0.5
ns
Operation
Address Used
SSCE
SSADS
SSWE
SSOE
DQ
Deselected Cycle, Power Down
None
H
L
X
High-Z
WRITE Cycle, Begin Burst
External
L
X
D
READ Cycle, Begin Burst
External
L
H
L
Q
READ Cycle, Begin Burst
External
L
H
High-Z
READ Cycle, Suspend Burst
Current
X
H
L
Q
READ Cycle, Suspend Burst
Current
X
H
High-Z
READ Cycle, Suspend Burst
Current
H
L
Q
READ Cycle, Suspend Burst
Current
H
High-Z
WRITE Cycle, Suspend Burst
Current
X
H
L
X
D
WRITE Cycle, Suspend Burst
Current
H
L
X
D
Note:
1. X means “don’t care”, H means logic HIGH. L means logic LOW.
2. All inputs except SSOE must meet setup and hold times around the rising edge (LOW to HIGH) of SSCLK.
3. Suspending burst generates wait cycle
4. For a write operation following a read operation, SSOE must be HIGH before the input data required setup time plus High-Z time for SSOE and staying
HIGH though out the input data hold time.
5. This device contains circuitry that will ensure the outputs will be in High-Z during power-up.
SSRAM OPERATION TRUTH TABLE
SSRAM PARTIAL TRUTH TABLE
Function
SSWE
BWE0
BWE1 BWE2
BWE3
READ
H
X
WRITE one Byte (DQ0-7)L
L
H
WRITE all Bytes
L
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