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CTK24BC01P8 参数 Datasheet PDF下载

CTK24BC01P8图片预览
型号: CTK24BC01P8
PDF下载: 下载PDF文件 查看货源
内容描述: [2-Wire Serial EEPROMs 1K/2K/4K/8K/16K]
分类和应用: 可编程只读存储器电动程控只读存储器电可擦编程只读存储器
文件页数/大小: 12 页 / 378 K
品牌: CYSTEKEC [ CYSTECH ELECTONICS CORP. ]
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Spec. No. : C705P8  
Issued Date : 2007.08.23  
Revised Date :  
CYStech Electronics Corp.  
Page No. : 3/12  
Pin Descriptions  
Serial Data(SDA): The SDA pin used for sending and receiving data bits in serial mode. Since the SDA  
pin is defined as an open-drain connection, a pull-up resistor is needed.  
Serial Clock(SCL): The SCL input is used to synchronize data input and output with clocked out on the  
falling edge of SCL.  
Device/Page Addresses(A2, A1, A0): The A2, A1, and A0 pins are used to address multiple devices on a  
single bus system and should be hard-wired.  
The CTK24BC01 and CTK24BC02 use the A2, A1 and A0 pins to provide the capability for  
addressing up to eight 1K/2K devices on a single bus system (please see the Device Addressing  
section for further details)  
The CTK24BC04 uses the A2 and A1 inputs and a total of for 4K device may be addressed on  
a single bus system. The A0 pin is not used, but should be grounded if possible.  
The CTK24BC08 only uses the A2 input hardware addressing. On a single bus system, a total  
of two 8K devices may be addressed. The A0 and A1 pins are not used, but should be grounded  
if possible.  
The CTK24BC16 does not use the device address pins, so only one device can be connected to a  
single bus system. Therefore, the A0, A1, and A2 pins are not used, but should be grounded if  
possible.  
Write Protect (WP): The CTK24BC01/02/04/08/16 has a Write Protect pin that provides hardware data  
protection. When connected to ground, the Write Protect pin allows for normal read/write  
operations. If the WP pin is connected to VCC, no data can be overwritten.  
Memory Organization  
The internal memory organization for the CTK24BC family is arranged differently for each of the densities.  
The CTK24BC01, for instance, is internally organized as 16 pages of 8 bytes each and requires a 7-bit data  
word address. The CTK24BC16, on the other hand, is organized as 128 pages of 16 bytes each with an  
11-bit data word address. The table below summarizes these differences.  
Density  
# of pages  
16 pages  
32 pages  
32 pages  
64 pages  
128 pages  
Bytes per page  
8 bytes  
8 bytes  
16 bytes  
16 bytes  
16 bytes  
Data word address length  
CTK24BC01 (1K)  
CTK24BC02 (2K)  
CTK24BC04 (4K)  
CTK24BC08 (8K)  
CTK24BC16 (16K)  
7 bits  
8 bits  
9 bits  
10 bits  
11 bits  
Pin Capacitance  
Applicable over recommended operating range :TA=25, f=1MHz, VCC=+1.8V  
Symbol  
CI/O  
CIN  
Test Condition  
Input/Output Capacitance (SDA)  
Input Capacitance (A0, A1,A2, SCL)  
Max  
8
6
Unit  
pF  
pF  
Condition  
VI/O=0V  
VIN=0V  
Note : These parameters are characterized and not 100% tested.  
CTK24BC01-16P8  
CYStek Product Specification  
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