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IC24C64A-2ZI 参数 Datasheet PDF下载

IC24C64A-2ZI图片预览
型号: IC24C64A-2ZI
PDF下载: 下载PDF文件 查看货源
内容描述: [EEPROM, 8KX8, Serial, CMOS, PDSO8, TSSOP-8]
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时钟光电二极管内存集成电路
文件页数/大小: 12 页 / 54 K
品牌: ISSI [ INTEGRATED SILICON SOLUTION, INC ]
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IS24C32A  
®
IS24C64A/B  
ISSI  
FUNCTIONAL BLOCK DIAGRAM  
HIGH VOLTAGE  
8
Vcc  
GENERATOR,  
TIMING & CONTROL  
5
6
7
SDA  
SCL  
WP  
CONTROL  
LOGIC  
EEPROM  
ARRAY  
SLAVE ADDRESS  
REGISTER &  
COMPARATOR  
1
2
3
WORD ADDRESS  
COUNTER  
A0  
A1  
A2  
Y
DECODER  
ACK  
Clock  
DI/O  
DATA  
REGISTER  
4
GND  
>
nMOS  
PIN DESCRIPTIONS  
PIN CONFIGURATION  
8-Pin DIP, SOIC, and TSSOP  
A0-A2  
SDA  
SCL  
WP  
Address Inputs  
Serial Address/Data I/O  
A0  
A1  
1
2
3
4
8
7
6
5
VCC  
WP  
Serial Clock Input  
Write Protect Input  
Power Supply  
Ground  
Vcc  
A2  
SCL  
SDA  
GND  
GND  
SCL  
This input clock pin is used to synchronize the data  
transfer to and from the device.  
withthe24C16.Whenpinsarehardwired,asmanyaseight  
32K/64K devices may be addressed on a single bus  
system.Whenthepinsarenothardwired,thedefaultvalues  
of A0, A1, and A2 are zero.  
SDA  
The SDA is a Bi-directional pin used to transfer addresses  
anddataintoandoutofthedevice. TheSDApinisanopen  
drain output and can be wire-Ored with other open drain  
or open collector outputs. The SDA bus requires a pullup  
resistor to Vcc.  
WP  
WPistheWriteProtectpin. WithIS24C32A/64A, iftheWP  
pinistiedtoVcc, theentirearraybecomesWriteProtected  
(Read only). With IS24C64B, if WP is tied to Vcc, the top  
quarterofthearray(1800h-1FFFh)becomesWriteProtected.  
When WP is tied to GND or left floating, normal read/write  
operations are allowed to the device.  
A0, A1, A2  
The A0, A1 and A2 are the device address inputs that are  
hardwired or left not connected for hardware compatibility  
2
Integrated Silicon Solution, Inc. — 1-800-379-4774  
ADVANCEDINFORMATION Rev. 00A  
01/26/04