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參數(shù)資料
| 型號： | CAT25010 |
| 元件分類： | DRAM |
| 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2 KB的EEPROM的國內(nèi)256個8位每字舉辦的串行CMOS |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 73K |
| 代理商： | CAT25010 |
6
CAT25010/20/40
Doc. No. 1006, Rev. L
Figure 2. WREN Instruction Timing
Figure 3. WRDI Instruction Timing
DEVICE OPERATION
Write Enable and Disable
The CAT25010/20/40 contains a write enable latch. This
latch must be set before any write operation. The device
powers up in a write disable state when V
cc
is applied.
WREN instruction will enable writes (set the latch) to the
device. If
WP
pin is held low, the write enable latch is
reset to the write disabe state, regardless of the WREN
Instruction. WRDI instruction will disable writes (reset
the latch) to the device. Disabling writes will protect the
device against inadvertent writes.
READ Sequence
The part is selected by pulling
CS
low. The 8-bit read
instruction is transmitted to the CAT25010/20/40, followed
by the 8-bit address for CAT25010/20/40 (for the 25040,
bit 3 of the read data instruction contains address A8).
After the correct read instruction and address are sent,
the data stored in the memory at the selected address is
shifted out on the SO pin. The data stored in the memory
at the next address can be read sequentially by continuing
Note: Dashed Line= mode (1, 1)
–
– – – –
SK
SI
CS
SO
0
0
0
0
0
1
1
0
HIGH IMPEDANCE
SK
SI
CS
SO
0
0
0
0
0
1
0
0
HIGH IMPEDANCE
Note: Dashed Line= mode (1, 1)
–
– – – –
STATUS REGISTER
The Status Register indicates the status of the device.
The
RDY
(Ready) bit indicates whether the CAT25010/
20/40 is busy with a write operation. When set to 1 a
write cycle is in progress and when set to 0 the device
indicates it is ready. This bit is read only. The WEL (Write
Enable) bit indicates the status of the write enable latch.
When set to 1, the device is in a Write Enable state and
when set to 0 the device is in a Write Disable state. The
WEL bit can only be set by the WREN instruction and can
be reset by the WRDI instruction.
The BP0 and BP1 (Block Protect) bits indicate which
blocks are currently protected. These bits are set by the
user issuing the WRSR instruction. The user is allowed
to protect quarter of the memory, half of the memory or
the entire memory by setting these bits. Once protected,
the user may only read from the protected portion of the
array. These bits are non-volatile.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CAT25020V | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020VA | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020VE | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020VI | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| CAT25020Y | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT25010HU4I-GT3 | 功能描述:電可擦除可編程只讀存儲器 1KB SPI SER CMOS 電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25010L | 功能描述:電可擦除可編程只讀存儲器 (128x8) 1k 2.5-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25010L-1.8 | 功能描述:電可擦除可編程只讀存儲器 (128x8) 1k 1.8-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25010LA | 功能描述:電可擦除可編程只讀存儲器 (128x8) 1k 2.5-6.0 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25010LGI | 制造商:Catalyst Semiconductor 功能描述: |
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