参数资料
型号: CAT24WC02RE-REV-F
元件分类: PROM
英文描述: 256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
封装: MO-187AA, MSOP-8
文件页数: 9/14页
文件大小: 505K
代理商: CAT24WC02RE-REV-F
CAT24WC01/02/04/08/16
4
Doc. No. 1022, Rev. N
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
FUNCTIONAL DESCRIPTION
The CAT24WC01/02/04/08/16 supports the I2C Bus
data transmission protocol. This Inter-Integrated Circuit
Bus protocol defines any device that sends data to the
bus to be a transmitter and any device receiving data to
be a receiver. Data transfer is controlled by the Master
device which generates the serial clock and all START
and STOP conditions for bus access. The CAT24WC01/
02/04/08/16 operates as a Slave device. Both the Mas-
ter and Slave devices can operate as either transmitter
or receiver, but the Master device controls which mode
is activated. A maximum of 8 devices (CAT24WC01 and
CAT24WC02), 4 devices (CAT24WC04), 2 devices
(CAT24WC08) and 1 device (CAT24WC16) may be
connected to the bus as determined by the device
address inputs A0, A1, and A2.
PIN DESCRIPTIONS
SCL: Serial Clock
The CAT24WC01/02/04/08/16 serial clock input pin is
used to clock all data transfers into or out of the device.
This is an input pin.
SDA: Serial Data/Address
The CAT24WC01/02/04/08/16 bidirectional serial data/
address pin is used to transfer data into and out of the
device. The SDA pin is an open drain output and can be
wire-ORed with other open drain or open collector
outputs.
A0, A1, A2: Device Address Inputs
These inputs set device address when cascading mul-
tiple devices.
When these pins are left floating the
default values are zeros.
A maximum of eight devices can be cascaded when
Figure 2. Write Cycle Timing
Figure 1. Bus Timing
Figure 3. Start/Stop Timing
5020 FHD F05
5020 FHD F04
5020 FHD F03
tHIGH
SCL
SDA IN
SDA OUT
tLOW
tF
tLOW
tR
tBUF
tSU:STO
tSU:DAT
tHD:DAT
tHD:STA
tSU:STA
tAA
tDH
tWR
STOP
CONDITION
START
CONDITION
ADDRESS
ACK
8TH BIT
BYTE n
SCL
SDA
START BIT
SDA
STOP BIT
SCL
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CAT24WC02RI 功能描述:电可擦除可编程只读存储器 (256x8) 2k 2.5-6.0 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
CAT24WC02RI-1.8 功能描述:电可擦除可编程只读存储器 (256x8) 2k 1.8-6.0 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
CAT24WC02U 功能描述:电可擦除可编程只读存储器 (256x8) 2k 2.5-6.0 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
CAT24WC02U-1.8 功能描述:电可擦除可编程只读存储器 (256x8) 2k 1.8-6.0 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
CAT24WC02UA 功能描述:电可擦除可编程只读存储器 (256x8) 2k 2.5-6.0 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