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參數資料
| 型號： | X20C04DMB |
| 英文描述： | Nonvolatile Static RAM |
| 中文描述： | 非易失性靜態(tài)RAM |
| 文件頁數： | 2/15頁 |
| 文件大?。?/td> | 67K |
| 代理商： | X20C04DMB |
X20C04
2
PIN DESCRIPTIONS
Addresses (A
0
–A
8
)
The Address inputs select an 8-bit memory location
during a read or write operation.
Chip Enable (
CE
)
The Chip Enable input must be LOW to enable all read/
write operations. When
CE
is HIGH, power consumption
is reduced.
Output Enable (
OE
)
The Output Enable input controls the data output buffers
and is used to initiate read and recall operations. Output
Enable LOW disables a store operation regardless of
the state of
CE
,
WE
, or
NE
.
Data In/Data Out (I/O
0
–I/O
7
)
Data is written to or read from the X20C04 through the
I/O pins. The I/O pins are placed in the high impedance
state when either
CE
or
OE
is HIGH or when
NE
is LOW.
Write Enable (
WE
)
The Write Enable input controls the writing of data to
both the static RAM and stores to the E
2
PROM.
Nonvolatile Enable (
NE
)
The Nonvolatile Enable input controls all accesses to
the E
2
PROM array (store and recall functions).
PIN NAMES
Symbol
A
0
–A
8
I/O
0
–I/O
7
WE
CE
OE
NE
V
CC
V
SS
NC
Description
Address Inputs
Data Input/Output
Write Enable
Chip Enable
Output Enable
Nonvolatile Enable
+5V
Ground
No Connect
3825 PGM T01
VCC SENSE
ROW
SELECT
CONTROL
LOGIC
COLUMN
SELECT
&
I/OS
EEPROM ARRAY
512 x 8
SRAM
ARRAY
CE
OE
WE
NE
A3–A6
I/O0–I/O7
A0–A2
A7–A8
RECALL
STORE
3825 FHD F01
FUNCTIONAL DIAGRAM
相關PDF資料 |
PDF描述 |
|---|---|
| X20C04EM-15 | Nonvolatile Static RAM |
| X20C04EM-20 | Nonvolatile Static RAM |
| X20C04EM-25 | Nonvolatile Static RAM |
| X20C04JM-15 | Nonvolatile Static RAM |
| X20C04JM-20 | Nonvolatile Static RAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| X20C04DMB-15 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Nonvolatile Static RAM |
| X20C04DMB-20 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Nonvolatile Static RAM |
| X20C04DMB-25 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Nonvolatile Static RAM |
| X20C04E | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Nonvolatile Static RAM |
| X20C04E-15 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Nonvolatile Static RAM |
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