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參數(shù)資料
| 型號： | AT24C1024B |
| 廠商： | Atmel Corp. |
| 英文描述： | Two-wire Serial EEPROM |
| 中文描述： | 兩線串行EEPROM |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 931K |
| 代理商： | AT24C1024B |
6
AT24C1024B
5194B–SEEPR–2/07
Device
Operation
CLOCK and DATA TRANSITIONS:
The SDA pin is normally pulled high with an external
device. Data on the SDA pin may change only during SCL low time periods (see Figure 4 on
page 7). Data changes during SCL high periods will indicate a start or stop condition as
defined below.
START CONDITION:
A high-to-low transition of SDA with SCL high is a start condition which
must precede any other command (see Figure 5 on page 8).
STOP CONDITION:
A low-to-high transition of SDA with SCL high is a stop condition. After a
read sequence, the Stop command will place the EEPROM in a standby power mode (see
Figure 5 on page 8).
ACKNOWLEDGE:
All addresses and data words are serially transmitted to and from the
EEPROM in 8-bit words. The EEPROM sends a zero during the ninth clock cycle to acknowl-
edge that it has received each word.
STANDBY MODE:
The AT24C1024B features a low-power standby mode which is enabled:
a) upon power-up and b) after the receipt of the stop bit and the completion of any internal
operations.
SOFTWARE RESET:
After an interruption in protocol, power loss or system reset, any 2-wire
part can be protocol reset by following these steps: (a) Create a start bit condition, (b) clock 9
cycles, (c) create another start bit followed by stop bit condition as shown below. The device is
ready for next communication after above steps have been completed.
Start Bit
Dummy Clock Cycles
Device Power Up & Power Down Recommendation
POWER UP:
It is recommended to power up from 0V to full VCC in less than 1ms and then
hold for at least 100μs at full VCC level before first operation.
POWER DOWN:
It is recommended to power down from full VCC to 0V in less than 1ms and
then hold at 0V for at least 0.5s before power up. It is not recommended to VCC power down
to non-zero volt and then slowly go to zero volt.
SCL
SDA
1
2
3
8
9
Start Bit
Stop Bit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT24C1024B_08 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Two-wire Serial EEPROM 1M (131,072 x 8) |
| AT24C1024BN-SH25-B | 功能描述:電可擦除可編程只讀存儲器 8-EIAJ 2.5V NiPdAu 2.5V 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 |
| AT24C1024BN-SH25-T | 功能描述:電可擦除可編程只讀存儲器 8-EIAJ 2.5V 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 |
| AT24C1024BN-SH-B | 功能描述:電可擦除可編程只讀存儲器 1.8V 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 |
| AT24C1024BN-SH-T | 功能描述:電可擦除可編程只讀存儲器 1.8V 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 |
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