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參數(shù)資料
| 型號： | S-24C02B |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | 2Kbits CMOS 2-Wired Serial EEPROM(2K位CMOS 2線串行EEPROM) |
| 中文描述： | 2Kbits的CMOS 2 -有線串行EEPROM（2K位的CMOS 2線串行EEPROM的） |
| 文件頁數(shù)： | 11/53頁 |
| 文件大?。?/td> | 173K |
| 代理商： | S-24C02B |
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CMOS 2-WIRED SERIAL EEPROM
S-24C01B/02B/04B
Seiko Instruments Inc.
10
In the S-24C01B or S-24C02B, the lower 3 bits of the word address are automatically incremented each
when the EEPROM receives 8-bit write data.
Even if the write data exceeds 8 bytes, the upper 5 bits at the word address remain unchanged, the lower 3 bits
are rolled over and overwritten.
In the S-24C04B, the lower 4 bits at the word address are automatically incremented each when the
EEPROM receives 8 bit write data.
Even when the write data exceeds 16 bytes, the upper 4 bits of the word address and page address P0 remain
unchanged, and the lower 4 bits are rolled over and overwritten.
6.3Acknowledgment Polling
Acknowledgment polling is used to know when the rewriting of the EEPROM is finished.
After the EEPROM receives the stop condition signal and once it starts to rewrite, all operations are prohibited.
Also, the EEPROM cannot respond to the signal transmitted by the master device.
Accordingly, the master device transmits the start condition signal and the device address read/write instruction
code to the EEPROM (namely, the slave device) to detect the response of the slave device. This allows users to
know when the rewriting of the EEPROM is finished.
That is, if the slave device does not output the acknowledgment signal, it means that the EEPROM is rewriting;
when the slave device outputs the acknowledgment signal, you can know that rewriting has been completed. It
is recommended to use read instruction “1” for the read/write instruction code transmitted by the master device.
6.4Write Protection
The S-24C01B/02B/04B are capable of protecting the memory. When the WP pin is connected to V
CC
,
writing to all memory area is prohibite in the S-24C01B, writing to 50% of the latter half of memory area is
prohibited in the S-24C02B and S-24C04B. (prohibited adress are 080h to 0FFh in the S-24C02B; 100h to 1FFh
in the S-24C04B) Even when writing is prohibited, since the controller inside the IC is operating, the response to
the signal transmitted by the master device is not available during the time of writing (t
WR
).
When the WP pin is connected to GND, the write protection becomes invalid, and writing in all memory area
becomes available. However, when there is no need for using write protection, always connect the WP pin to
GND.
Figure 11
Page Write
S
T
A
R
T
1
0 1
0
W
R
I
T
E
S
T
O
P
DEVICE
ADDRES
WORD ADDRESS (n)
DATA (n)
R
/
W
M
S
B
SDA LINE
ADR INC
x
x P0
W7W6W5W4W3W2W1W0
D7 D6 D5 D4 D3 D2 D1 D0
A
C
K
L
S
B
A
C
K
A
C
K
0
D7
D0
D7
D0
ADR INC
A
C
K
ADR INC
A
C
K
DATA (n+1)
DATA (n+x)
W7 is optional in the S-24C01B.
P0 is ‘don’t care’ in the S-24C01B/02B.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-24C04B | 4Kbits CMOS 2-Wired Serial EEPROM(4K位CMOS 2線串行EEPROM) |
| S-24C01B | 1Kbits CMOS 2-Wired Serial EEPROM(1K位CMOS 2線串行EEPROM) |
| S-24C08A | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| S-24C16A | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| S-24H30 | 64 Bits Non-Volatile CMOS RAM(64位CMOS非易失性RAM) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-24C02BDP | 功能描述:電可擦除可編程只讀存儲器 2K (256X8) 2-Wire 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| S-24C02BFJ-TB | 功能描述:電可擦除可編程只讀存儲器 2K (256X8) 2-Wire 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| S-24C02BFJ-TB-G | 制造商:Seiko Instruments Inc (SII) 功能描述:S-24C02BFJ-TB-G - Tape and Reel |
| S-24C02BMFN-TB | 功能描述:電可擦除可編程只讀存儲器 2K (256X8) 2-Wire 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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| S-24C02BPN-TF-G | 制造商:Seiko Instruments Inc (SII) 功能描述:EEPROM, 2KB, 2 WIRE SON PKG - Tape and Reel |
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