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參數(shù)資料
| 型號(hào)： | XC1704LVQ44I |
| 廠商： | XILINX INC |
| 元件分類： | DRAM |
| 英文描述： | Configuration PROMs |
| 中文描述： | 4M X 1 CONFIGURATION MEMORY, PQFP44 |
| 封裝： | PLASTIC, VQFP-44 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 124K |
| 代理商： | XC1704LVQ44I |
R
Standby Mode
The PROM enters a low-power standby mode whenever CE
is asserted High. The output remains in a high impedance
state regardless of the state of the OE input.
Programming
The devices can be programmed on programmers supplied
by Xilinx or qualified third-party vendors. The user must
ensure that the appropriate programming algorithm and the
latest version of the programmer software are used. The
wrong choice can permanently damage the device.
Table 1:
Truth Table for XC1700 Control Inputs
Control Inputs
Internal Address
Outputs
RESET
CE
DATA
CEO
I
CC
Inactive
Low
If address < TC
(1)
: increment
If address > TC
(2)
: don
’
t change
Active
High-Z
High
Low
Active
Reduced
Active
Low
Held reset
High-Z
High
Active
Inactive
High
Not changing
High-Z
High
Standby
Active
High
Held reset
High-Z
High
Standby
Notes:
1.
2.
The XC1700 RESET input has programmable polarity
TC = Terminal Count = highest address value. TC + 1 = address 0.
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