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參數(shù)資料
| 型號(hào)： | X84256ZI-1.8 |
| 元件分類： | EEPROM |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | 該CAT24FC02是一個(gè)2 KB的EEPROM的國內(nèi)256個(gè)8位每字舉辦的串行CMOS |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 68K |
| 代理商： | X84256ZI-1.8 |
X84256
Preliminary
2
PIN CONFIGURATIONS
Drawings are to the same scale, actual package sizes are
shown in inches:
PIN NAMES
PIN DESCRIPTIONS
Chip Enable (CE)
The Chip Enable input must be LOW to enable all read/
write operations. When CE is HIGH, the chip is dese-
lected, the I/O pin is in the high impedance state, and
unless a nonvolatile write operation is underway, the
device is in the standby power mode.
Output Enable (OE)
The Output Enable input must be LOW to enable the out-
put buffer and to read data from the device on the I/O line.
Write Enable (WE)
The Write Enable input must be LOW to write either data
or command sequences to the device.
Data In/Data Out (I/O)
Data and command sequences are serially written to or
serially read from the device through the I/O pin.
Write Protect (WP)
When the Write Protect input is LOW, nonvolatile writes to
the device are disabled. When WP is HIGH, all functions,
including nonvolatile writes, operate normally. If a nonvol-
atile write cycle is in progress, WP going LOW will have
no effect on the cycle already underway, but will inhibit
any additional nonvolatile write cycles.
DEVICE OPERATION
The X84256 serial EEPROM is designed to interface
directly with most microprocessor buses. Standard CE,
OE, and WE signals control the read and write opera-
tions, and a single l/O line is used to send and receive
data and commands serially.
V
CC
NC
OE
WE
CE
I/O
WP
V
SS
1
2
3
4
8
7
6
5
8-LEAD SOIC
14-LEAD TSSOP
I/O
NC
WP
VSS
1
2
3
4
5
6
7
NC
NC
NC
NC
OE
WE
14
13
12
11
10
9
8
VCC
CE
NC
NC
I/O
CE
V
SS
OE
WP
V
CC
NC
WE
1
2
3
4
8
7
6
5
8-LEAD XBGA
X84256
16-LEAD SOIC
I/O
NC
NC
VSS
1
2
3
4
5
6
7
NC
NC
NC
NC
NC
OE
WE
14
13
12
11
10
VCC
CE
NC
NC
8
WP
9
15
16
I/O
CE
OE
WE
WP
V
CC
V
SS
NC
Data Input/Output
Chip Enable Input
Output Enable Input
Write Enable Input
Write Protect Input
Supply Voltage
Ground
No Connect
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