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参数资料
| 型号： | AT24C256B-PU |
| 厂商： | Atmel |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 256KBIT 1MHZ 8DIP |
| 标准包装： | 50 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 256K (32K x 8) |
| 速度： | 400kHz，1MHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
Features
? Low-voltage and Standard-voltage Operation
– 1.8 (V CC = 1.8V to 5.5V)
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Internally Organized as 32,768 x 8
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1 MHz (5.0V, 2.7V, 2.5V), and 400 kHz (1.8V) Compatibility
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Write Protect Pin for Hardware and Software Data Protection
64-byte Page Write Mode (Partial Page Writes Allowed)
Self-timed Write Cycle (5 ms Max)
High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 40 Years
Lead-free/Halogen-free Devices Available
8-lead JEDEC PDIP, 8-lead JEDEC SOIC, EIAJ SOIC, 8-lead Ultra Thin Small Array
Package (SAP), 8-lead TSSOP, and 8-ball dBGA2 Packages
Die Sales: Wafer Form, Waffle Pack and Bumped Wafers
Two-wire Serial
EEPROM
256K (32,768 x 8)
AT24C256B
Description
The AT24C256B provides 262,144 bits of serial electrically erasable and programma-
ble read-only memory (EEPROM) organized as 32,768 words of 8 bits each. The
device’s cascadable feature allows up to eight devices to share a common two-wire
bus. The device is optimized for use in many industrial and commercial applications
where low-power and low-voltage operation are essential. The devices are available
in space-saving 8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin SAP, 8-
lead TSSOP, and 8-ball dBGA2 packages. In addition, the entire family is available in
a 1.8V (1.8V to 5.5V) version.
Not
Recommended
for New Design
Pin Configurations
8-lead PDIP
8-lead SOIC
Pin Name
A0–A2
SDA
Function
Address Inputs
Serial Data
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
SCL
Serial Clock Input
8-lead dBGA2
8-lead TSSOP
WP
Write Protect
VCC
8
1
A0
GND
Ground
WP
SCL
SDA
7
6
5
2
3
4
A1
A2
GND
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
Bottom View
8-lead Ultra Thin SAP
VCC
WP
SCL
SDA
8
7
6
5
Bottom View
1
2
3
4
A0
A1
A2
GND
Rev. 5279C–SEEPR–3/09
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AT24C256B-TH-B | 功能描述:电可擦除可编程只读存储器 PB/HALO FREE 1.8V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| AT24C256B-TH-T | 功能描述:电可擦除可编程只读存储器 PB/HALO FREE 1.8V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| AT24C256BU2-10UU-1.8 | 制造商:Atmel Corporation 功能描述: |
| AT24C256BU2-UU-T | 功能描述:电可擦除可编程只读存储器 PB/HALO FREE 1.8V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| AT24C256BW-10SU-1.8 | 制造商:Atmel Corporation 功能描述:EEPROM Serial-2Wire 256K-bit 32K x 8 2.5V/3.3V/5V 8-Pin SOIC EIAJ |
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