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HCS301T-I/SNVAO PDF预览

HCS301T-I/SNVAO

更新时间: 2024-11-09 15:42:31
品牌 Logo 应用领域
美国微芯 - MICROCHIP 电信光电二极管电信集成电路
页数 文件大小 规格书
38页 712K
描述
Data Encryption Circuit, PDSO8

HCS301T-I/SNVAO 技术参数

生命周期:Active包装说明:SOIC-8
Reach Compliance Code:compliant风险等级:5.63
JESD-30 代码:R-PDSO-G8长度:4.9 mm
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
筛选级别:AEC-Q100; TS 16949座面最大高度:1.75 mm
标称供电电压:5 V表面贴装:YES
电信集成电路类型:DATA ENCRYPTION CIRCUIT温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:3.9 mm
Base Number Matches:1

HCS301T-I/SNVAO 数据手册

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HCS301  
®
KEELOQ Code Hopping Encoder  
FEATURES  
Security  
DESCRIPTION  
The HCS301 from Microchip Technology Inc. is a code  
hopping encoder designed for secure Remote Keyless  
Entry (RKE) systems. The HCS301 utilizes the  
• Programmable 28-bit serial number  
• Programmable 64-bit encryption key  
• Each transmission is unique  
• 66-bit transmission code length  
• 32-bit hopping code  
®
KEELOQ code hopping technology, which incorpo-  
rates high security, a small package outline and low  
cost, to make this device a perfect solution for unidirec-  
tional remote keyless entry systems and access control  
systems.  
• 34-bit fixed code (28-bit serial number,  
4-bit button code, 2-bit status)  
PACKAGE TYPES  
• Encryption keys are read protected  
PDIP, SOIC  
Operating  
8
7
6
5
VDD  
S0  
S1  
1
2
3
4
• 3.5V - 13.0V operation  
LED  
PWM  
VSS  
• Four button inputs  
• No additional circuitry required  
• 15 functions available  
S2  
S3  
• Selectable baud rate  
• Automatic code word completion  
• Battery low signal transmitted to receiver  
• Battery low indication on LED  
• Non-volatile synchronization data  
HCS301 BLOCK DIAGRAM  
Oscillator  
Power  
latching  
and  
Controller  
RESET circuit  
switching  
Other  
LED  
LED driver  
• Functionally identical to HCS300  
• Easy-to-use programming interface  
• On-chip EEPROM  
EEPROM  
Encoder  
• On-chip oscillator and timing components  
• Button inputs have internal pull-down resistors  
• Current limiting on LED output  
• Low external component cost  
PWM  
32-bit shift register  
Button input port  
VSS  
VDD  
Typical Applications  
The HCS301 is ideal for Remote Keyless Entry (RKE)  
applications. These applications include:  
S2  
S3  
S1 S0  
• Automotive RKE systems  
• Automotive alarm systems  
• Automotive immobilizers  
• Gate and garage door openers  
• Identity tokens  
The HCS301 combines a 32-bit hopping code,  
generated by a nonlinear encryption algorithm, with a  
28-bit serial number and 6 information bits to create a  
66-bit code word. The code word length eliminates the  
threat of code scanning and the code hopping mecha-  
nism makes each transmission unique, thus rendering  
code capture and resend schemes useless.  
• Burglar alarm systems  
© 2011 Microchip Technology Inc.  
DS21143C-page 1  

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