AT24C1024
Pin Description
Memory
Organization
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 bi-directional 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/ADDRESSES (A1): The A1 pin is a device address input that can be hardwired or
left not connected for hardware compatibility with other AT24Cxx devices. When the A1 pin is
hardwired, as many as two 1024K devices may be addressed on a single bus system (device
addressing is discussed in detail under the Device Addressing section). If the A1 pin is left
floating, the A1 pin will be internally pulled down to GND if the capacitive coupling to the circuit
board V CC plane is <3 pF. If coupling is >3 pF, Atmel recommends connecting the A1 pin to
GND.
WRITE PROTECT (WP): The write protect input, when connected to GND, allows normal
write operations. When WP is connected high to V CC , all write operations to the memory are
inhibited. If the pin is left floating, the WP pin will be internally pulled down to GND if the
capacitive coupling to the circuit board V CC plane is <3 pF. If coupling is >3 pF, Atmel recom-
mends connecting the pin to GND. Switching WP to V CC prior to a write operation creates a
software write-protect function.
AT24C1024, 1024K SERIAL EEPROM: The 1024K is internally organized as 512 pages of
256 bytes each. Random word addressing requires a 17-bit data word address.
3
1471O–SEEPR–3/07
相关PDF资料
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AT24C128BY6-YH-T IC EEPROM 128KBIT 1MHZ 8DFN
AT24C128C-XHM-B IC EEPROM 128KBIT 400KHZ 8TSSOP
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AT24C164-10SU-1.8 IC EEPROM 16KBIT 1MHZ 8SOIC
AT24C16AY6-10YH-1.8 IC EEPROM 16KBIT 400KHZ 8DFN
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AT24C256BW-SH-T IC EEPROM 256KBIT 1MHZ 8SOIC
相关代理商/技术参数
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AT24C11-10PU-1.8 功能描述:电可擦除可编程只读存储器 BUMP 1.8V 7 MIL - 10MS 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
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AT24C11-10TI-1.8 功能描述:IC EEPROM 1KBIT 1MHZ 8TSSOP RoHS:否 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:96 系列:- 格式 - 存储器:闪存 存储器类型:FLASH 存储容量:16M(2M x 8,1M x 16) 速度:70ns 接口:并联 电源电压:2.65 V ~ 3.6 V 工作温度:-40°C ~ 85°C 封装/外壳:48-TFSOP(0.724",18.40mm 宽) 供应商设备封装:48-TSOP 包装:托盘
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