95HS01 Datasheet | NM95HS01





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Part Number 95HS01
Description NM95HS01
Manufacture National Semiconductor
Total Page 20 Pages
PDF Download Download 95HS01 PDF File

Features: NM95HS01 NM95HS02 HiSeC High Security Ro lling Code Generator www.DataSheet4U.c om February 1996 NM95HS01 NM95HS02 Hi SeCTM High Security Rolling Code Genera tor General Description Features The NM95HS01 02 HiSeC Rolling Code Generat or is a small footprint monolithic CMOS device designed to provide a complete low-cost high security solution to the problem of generating encrypted signals for remote keyless entry (RKE) applica tions The NM95HS01 02 generates a fully encoded bit stream each time one of (u p to) 4 switch inputs is activated The patented coding scheme utilizes 248 pos sible user-programmable coding combinat ions and features high linear complexit y and correlation immunity High securit y is guaranteed by generating a unique (rolling) code for each transmission an d can be further enhanced by creating c ustomized algorithms for individual cus tomers With this product each key can b e designed to be both unique and highly secure Y High security coding scheme with 248 combinations Y .

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www.DataSheet4U.com
February 1996
NM95HS01 NM95HS02
HiSeCTM High Security Rolling Code Generator
General Description
Features
The NM95HS01 02 HiSeC Rolling Code Generator is a
small footprint monolithic CMOS device designed to pro-
vide a complete low-cost high security solution to the prob-
lem of generating encrypted signals for remote keyless en-
try (RKE) applications
The NM95HS01 02 generates a fully encoded bit stream
each time one of (up to) 4 switch inputs is activated The
patented coding scheme utilizes 248 possible user-pro-
grammable coding combinations and features high linear
complexity and correlation immunity High security is guar-
anteed by generating a unique (rolling) code for each trans-
mission and can be further enhanced by creating custom-
ized algorithms for individual customers With this product
each key can be designed to be both unique and highly
secure
Y High security coding scheme with 248 combinations
Y High linear complexity and correlation immunity
Y 2 2V to 6 5V operation
Y Less than 1 mA standby current
Y Full resynchronization capability
Y Unique customized algorithm option
Y 13 bytes on-chip non-volatile configuration memory
Y RC or XTAL clock options for to 4 1 MHz operation
Y Supports both IR and RF signal transmission
Y Selection of bit coding and transmission frame formats
Y Space saving narrow body SO8 or SO14 packages
Y Up to 4 key switch inputs on SO14 package
Applications
The NM95HS01 02 supports either an IR or RF signal
transmitter and can be clocked with either an RC clock
(NM95HS01) or a crystal oscillator (NM95HS02) The de-
vice operates over a voltage range of 2 2V to 6 5V and
offers a low power standby mode (k1 mA) for battery appli-
cations The product is available in both 8-pin and 14-pin SO
packages with 2 or 4 key switch inputs that can be used for
customer presets such as seat positions and vehicle oper-
ating functions such as car door locking unlocking
Y Remote Keyless Entry (RKE) applications
Y Burglar alarms garage door openers
Y Individualized recognition transmission systems
Y Personalized consumer automotive applications
Relevant Documents
Y MM57HS01 datasheet
Y Designing and Programming a Complete HiSeCTM-
based RKE System
AN-985
Patents Pending
Y HiSeC Remote Keyless Entry Solution Encoder Decod-
DataSheereCth4ipUS.ectoUmser’s Manual
AN-355
Functional Block Diagram
DataShee
Note Signals shown are internal logic signals
FIGURE 1
HiSeCTM and MICROWIRETM are trademarks of National Semiconductor Corporation
C1996 National Semiconductor Corporation TL D 12302
RRD-B30M66 Printed in U S A
TL D 12302 – 1
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