Features
? Low-Voltage and Standard-Voltage Operation
– 2.7 (V CC = 2.7V to 5.5V)
– 1.8 (V CC = 1.8V to 5.5V)
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Low-Power Devices (I SB = 2 μA at 5.5V) Available
Internally Organized 4096 x 8, 8192 x 8
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
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100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Clock Rate
Write Protect Pin for Hardware Data Protection
32-Byte Page Write Mode (Partial Page Writes Allowed)
Self-Timed Write Cycle (10 ms max)
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Automotive Grade and Extended Temperature Devices Available
8-Pin JEDEC PDIP, 8-Pin JEDEC SOIC, 8-Pin EIAJ SOIC,
and 8-pin TSSOP Packages
2-Wire
Serial EEPROM
32K (4096 x 8)
64K (8192 x 8)
Description
The AT24C32/64 provides 32,768/65,536 bits of serial electrically erasable and pro-
grammable read only memory (EEPROM) organized as 4096/8192 words of 8 bits
each. The device’s cascadable feature allows up to 8 devices to share a common 2-
wire bus. The device is optimized for use in many industrial and commercial applica-
tions where low power and low voltage operation are essential. The AT24C32/64 is
available in space saving 8-pin JEDEC PDIP, 8-pin JEDEC SOIC, 8-pin EIAJ SOIC,
and 8-pin TSSOP (AT24C64) packages and is accessed via a 2-wire serial interface.
In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V)
versions.
Pin Configurations
AT24C32
AT24C64
2-Wire, 32K
Pin Name
Function
8-Pin TSSOP
Serial E 2 PROM
A0 - A2
SDA
SCL
Address Inputs
Serial Data
Serial Clock Input
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
WP
Write Protect
8-Pin PDIP
8-Pin SOIC
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
Rev. 0336K–SEEPR–7/03
1
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相关代理商/技术参数
AT24C64W-10SI-2.5 功能描述:IC EEPROM 64KBIT 400KHZ 8SO 制造商:microchip technology 系列:- 包装:管件 零件状态:停產 存储器类型:非易失 存储器格式:EEPROM 技术:EEPROM 存储容量:64Kb (8K x 8) 时钟频率:400kHz 写周期时间 - 字,页:10ms 访问时间:900ns 存储器接口:I2C 电压 - 电源:2.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C(TA) 安装类型:表面贴装 封装/外壳:8-SOIC(0.209",5.30mm 宽) 供应商器件封装:8-SOIC 基本零件编号:AT24C64 标准包装:94
AT24C64W-10SI-2.7 功能描述:电可擦除可编程只读存储器 32/64k 2-Wire Bus 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
AT24C94AN-10SI-2.7 制造商:Atmel Corporation 功能描述:
AT24CM01-SHD-B 制造商:Atmel Corporation 功能描述:Cap Film 0.27uF 400V PP 10% (18 X 7.5 X 13.5mm) Radial 15mm 105°C Pizza Pack 制造商:Atmel Corporation 功能描述:8 EIAJ SOIC, PB/HALO FREE, NIPDAU, 2.5V - Bulk 制造商:Atmel Corporation 功能描述:IC EEPROM 1MBIT 1MHZ 8SOIC 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M 2-WIR-8 EIAJ SOIC 制造商:Atmel 功能描述:Cap Film 0.27uF 400V PP 10% (18 X 7.5 X 13.5mm) Radial 15mm 105°C Pizza Pack
AT24CM01-SHD-B SL901 制造商:Atmel Corporation 功能描述:IC EEPROM 1MBIT 1MHZ 8SOIC
AT24CM01-SHD-T 制造商:Atmel Corporation 功能描述:EEPROM Serial-I2C 1M-bit 128K x 8 3.3V/5V 8-Pin SOIC EIAJ T/R 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M (128K X 8), 2-WIR - 8 EIAJ SOIC, PB/HALO F - Tape and Reel 制造商:Atmel 功能描述:SERIAL EE 制造商:Atmel Corporation 功能描述:IC EEPROM 1MBIT 1MHZ 8SOIC 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M 2-WIR-8 EIAJ SOIC
AT24CM01-SHM-B 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M (128K X 8), 2-WIR - 8 EIAJ SOIC, PB/HALO F - Bulk 制造商:Atmel Corporation 功能描述:IC EEPROM 1MBIT 1MHZ 8SOIC 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M 2-WIR-8 EIAJ SOIC 制造商:Atmel 功能描述:Cap Film 0.056uF 250V PP 2% (10 X 4 X 8mm) Radial 7.5mm 105°C Ammo Pack
AT24CM01-SHM-T 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M (128K X 8), 2-WIR - 8 EIAJ SOIC, PB/HALO F - Tape and Reel 制造商:Atmel Corporation 功能描述:IC EEPROM 1MBIT 1MHZ 8SOIC 制造商:Atmel Corporation 功能描述:SERIAL EEPROM, 1M 2-WIR-8 EIAJ SOIC 制造商:Atmel 功能描述:Res Thin Film 2512 10K Ohm 0.5% 1/2W ±50ppm/°C Molded SMD Plastic T/R