參數(shù)資料
型號(hào)： AT24C128B
廠商： Atmel Corp.
英文描述： Two-wire Serial EEPROM
中文描述： 兩線串行EEPROM
文件頁(yè)數(shù)： 8/20頁(yè)
文件大?。?/td> 679K
代理商： AT24C128B
8
AT24C128B [Preliminary]
5208A–SEEPR–1/07
Figure 6.
Output Acknowledge
Device
Addressing
The 256K EEPROM requires an 8-bit device address word following a start condition to enable
the chip for a read or write operation (see Figure 7). The device address word consists of a
mandatory “1”, “0” sequence for the first four most significant bits as shown. This is common to
all two-wire EEPROM devices.
Figure 7.
Device Address
The next three bits are the A2, A1, A0 device address bits to allow as many as eight devices
on the same bus. These bits must compare to their corresponding hardwired input pins. The
A2, A1, and A0 pins use an internal proprietary circuit that biases them to a logic low condition
if the pins are allowed to float.
The eighth bit of the device address is the read/write operation select bit. A read operation is
initiated if this bit is high, and a write operation is initiated if this bit is low.
Upon a compare of the device address, the EEPROM will output a “0”. If a compare is not
made, the device will return to a standby state.
DATA SECURITY:
The AT24C128B has a hardware data protection scheme that allows the
user to write protect the whole memory when the WP pin is at V
CC
.
MSB
1
0
1
0
A2
A1
A0
R/W
LSB
相關(guān)PDF資料
PDF描述
AT24C128 128K 2-wire Serial EEPROMs(128K 2線串行EEPROM)
AT24C164-10PU-1.8 Two-Wire Serial EEPROM 16K (2048 x 8)
AT24C164-10PU-2.7 Two-Wire Serial EEPROM 16K (2048 x 8)
AT24C164-10SU-1.8 Two-Wire Serial EEPROM 16K (2048 x 8)
AT24C164-10SU-2.7 Two-Wire Serial EEPROM 16K (2048 x 8)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT24C128B_08 制造商:ATMEL 制造商全稱(chēng):ATMEL Corporation 功能描述:Two-wire Serial EEPROM
AT24C128BD3-DH-T 功能描述:電可擦除可編程只讀存儲(chǔ)器 Serial 電可擦除可編程只讀存儲(chǔ)器 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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
AT24C128BN-SH-B 功能描述:電可擦除可編程只讀存儲(chǔ)器 IND TEMP 1.8V - 128Kbit 2-Wire Bus RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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
AT24C128BN-SH-T 功能描述:電可擦除可編程只讀存儲(chǔ)器 IND TEMP 1.8V - 128Kbit 2-Wire Bus RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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
AT24C128B-PU 功能描述:電可擦除可編程只讀存儲(chǔ)器 IND TEMP 1.8V - 128Kbit 2-Wire Bus RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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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