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參數(shù)資料
| 型號： | AT24C128B |
| 廠商： | Atmel Corp. |
| 英文描述： | Two-wire Serial EEPROM |
| 中文描述： | 兩線串行EEPROM |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 679K |
| 代理商： | AT24C128B |
3
AT24C128B [Preliminary]
5208A–SEEPR–1/07
Pin Description
SERIAL CLOCK (SCL):
The SCL input is used to positive-edge clock data into each
EEPROM device and negative-edge clock data out of each device.
SERIAL DATA (SDA):
The SDA pin is bidirectional for serial data transfer. This pin is open-
drain driven and may be wire-ORed with any number of other open-drain or open-collector
devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0):
The A2, A1, and A0 pins are device address
inputs that are hardwired (directly to GND or to Vcc) for compatibility with other AT24Cxx
devices. When the pins are hardwired, as many as eight 128K devices may be addressed on
a single bus system. (Device addressing is discussed in detail under “Device Addressing,”
page 8.) A device is selected when a corresponding hardware and software match is true. If
these pins are left floating, the A2, A1, and A0 pins will be internally pulled down to GND. How-
ever, due to capacitive coupling that may appear during customer applications, Atmel
recommends always connecting the address pins to a known state. When using a pull-up
resistor, Atmel recommends using 10k
or less.
WRITE PROTECT (WP):
The write protect input, when connected to GND, allows normal
write operations. When WP is connected directly to Vcc, all write operations to the memory are
inhibited. If the pin is left floating, the WP pin will be internally pulled down to GND. However,
due to capacitive coupling that may appear during customer applications, Atmel recommends
always connecting the WP pins to a known state. When using a pull-up resistor, Atmel recom-
mends using 10k
or less.
Memory
Organization
AT24C128B, 128K SERIAL EEPROM:
The 128K is internally organized as 256 pages of 64
bytes each. Random word addressing requires a 14-bit data word address.
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: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器 Serial 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(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器 IND TEMP 1.8V - 128Kbit 2-Wire Bus 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 |
| AT24C128BN-SH-T | 功能描述:電可擦除可編程只讀存儲器 IND TEMP 1.8V - 128Kbit 2-Wire Bus 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 |
| AT24C128B-PU | 功能描述:電可擦除可編程只讀存儲器 IND TEMP 1.8V - 128Kbit 2-Wire Bus 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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