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HCS320 PDF预览

HCS320

更新时间: 2024-01-03 09:18:24
品牌 Logo 应用领域
美国微芯 - MICROCHIP 编码器
页数 文件大小 规格书
32页 417K
描述
KEELOQ Code Hopping Encoder

HCS320 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.33JESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
湿度敏感等级:1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峰值回流温度(摄氏度):260
认证状态:Not Qualified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
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3.9 mm
Base Number Matches:1

HCS320 数据手册

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HCS320  
®
KEELOQ Code Hopping Encoder  
FEATURES  
Security  
DESCRIPTION  
The HCS320 from Microchip Technology Inc. is a code  
hopping encoder designed for secure Remote Keyless  
Entry (RKE) systems. The HCS320 utilizes the code  
hopping technology which incorporates high security, a  
small package outline, and low cost, to make this  
device a perfect solution for unidirectional remote key-  
less entry systems and access control systems.  
• Programmable 28-bit serial number  
• Programmable 64-bit encryption key  
• Each transmission is unique  
• 66-bit transmission code length  
• 32-bit hopping code  
• 34-bit fixed code (28-bit serial number,  
4-bit function code, 2-bit status)  
PACKAGE TYPES  
• Encryption keys are read protected  
PDIP, SOIC  
8
7
6
5
VDD  
LED  
PWM  
VSS  
S0  
1
2
3
4
Operating  
S1  
• 3.5V - 13.0V operation  
• Shift key and three inputs  
S2  
• 16 functions available  
SHIFT  
• Selectable baud rate  
• Automatic code word completion  
• Battery low signal transmitted to receiver  
• Battery low indication on LED  
• Non-volatile synchronization data  
HCS320 BLOCK DIAGRAM  
Oscillator  
Power  
latching  
and  
Controller  
RESET circuit  
switching  
Other  
LED  
LED driver  
• Easy-to-use programming interface  
• On-chip EEPROM  
• On-chip oscillator and timing components  
• Button inputs have internal pull-down resistors  
• Current limiting on LED output  
• Low external component cost  
EEPROM  
Encoder  
PWM  
32-bit shift register  
Button input port  
Typical Applications  
VSS  
VDD  
The HCS320 is ideal for Remote Keyless Entry (RKE)  
applications. These applications include:  
• Automotive RKE systems  
• Automotive alarm systems  
• Automotive immobilizers  
• Gate and garage door openers  
• Identity tokens  
S2  
SHIFT  
S1 S0  
The HCS320 combines a 32-bit hopping code gener-  
ated by a nonlinear encryption algorithm, with a 28-bit  
serial number and six status bits to create a 66-bit  
transmission stream. The length of the transmission  
eliminates the threat of code scanning and the code  
hopping mechanism makes each transmission unique,  
thus rendering code capture and resend (code grab-  
bing) schemes useless.  
• Burglar alarm systems  
2001 Microchip Technology Inc.  
DS41097C-page 1  

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