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HCS410-IST の電気的特性と機能

HCS410-ISTのメーカーはMicrochip Technologyです、この部品の機能は「KEELOQ CODE HOPPING ENCODER AND TRANSPONDER」です。


製品の詳細 ( Datasheet PDF )

部品番号 HCS410-IST
部品説明 KEELOQ CODE HOPPING ENCODER AND TRANSPONDER
メーカ Microchip Technology
ロゴ Microchip Technology ロゴ 




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HCS410-IST Datasheet, HCS410-IST PDF,ピン配置, 機能
M
HCS410
Code Hopping Encoder and Transponder*
FEATURES
PACKAGE TYPES
Security
• Two programmable 64-bit encoder keys
• 16/32-bit bi-directional challenge and response
using one of two keys
• 69-bit transmission length
• 32-bit unidirectional code hopping, 37-bit
nonencrypted portion
• Encoder keys are read protected
• Programmable 28/32-bit serial number
• 60/64-bit, read-protected seed for secure learning
• Three IFF encryption algorithms
• Delayed increment mechanism
• Asynchronous transponder communication
• Queuing information transmitted
Operating
• 2.0V to 6.6V operation, 13V encoder only
operation
• Three switch inputs [S2, S1, S0]—seven functions
• Batteryless bi-directional transponder
• Selectable baud rate and code word blanking
• Automatic code word completion
• Battery low signal transmitted
• Nonvolatile synchronization
• PWM or Manchester RF encoding
• Combined transmitter, transponder operation
• Anti-collision of multiple transponders
• Passive proximity activation
• Device protected against reverse battery
• Intelligent damping for high Q LC-circuits
Other
• 37-bit nonencrypted part contains 28/32-bit serial
number, 4/0-bit function code, 1-bit battery low,
2-bit CRC, 2-bit queue
• Simple programming interface
• On-chip tunable RC oscillator (±10%)
• On-chip EEPROM
• 64-bit user EEPROM in transponder mode
• Battery-low LED indication
• SQTP serialization quick-time programming
• 8-pin PDIP/SOIC/TSSOP and die
PDIP, SOIC
S0 1
S1 2
S2/LED 3
LC1 4
8 VDD
7 LC0
6 PWM
5 GND
TSSOP
S2/LED
LC1
GND
PWM
1
2
3
4
8 S1
7 S0
6 VDD
5 LC0
BLOCK DIAGRAM
VDD Power
Control
Oscillator
Configuration Register
S0
Debounce
Address
Decoding
EEPROM
S1 Wakeup Control
Logic
and
Queuer
S2 LED
Control
LCI0
LCI1
PWM
PWM
Driver
PPM
Detector
PWM
PPM
Manch.
Encoder
Typical Applications
• Automotive remote entry systems
• Automotive alarm systems
• Automotive immobilizers
• Gate and garage openers
• Electronic door locks (Home/Office/Hotel)
• Burglar alarm systems
• Proximity access control
KEELOQ is a registered trademark of Microchip Technology Inc.
*Code hopping encoder patents issued in Europe, U.S.A., R.S.A.—U.S.A.: 5,517,187; Europe: 0459781
© 1997 Microchip Technology Inc.
Preliminary
DS40158C-page 1

1 Page





HCS410-IST pdf, ピン配列
HCS410
DESCRIPTION
The HCS410 is a code hopping transponder device
designed for secure entry systems. The HCS410 uti-
lizes the patented KEELOQ code hopping system and
bi-directional challenge-and-response for logical and
physical access control. High security learning mecha-
nisms make this a turnkey solution when used with the
KEELOQ decoders. The encoder keys and synchroniza-
tion information are stored in protected on-chip
EEPROM.
A low cost batteryless transponder can be imple-
mented with the addition of an inductor and two capac-
itors. A packaged module including the inductor and
capacitor will also be offered.
A single HCS410 can be used as an encoder for
Remote Keyless Entry (RKE) and a transponder for
immobilization in the same circuit and thereby dramat-
ically reducing the cost of hybrid transmitter/transpon-
der circuits.
1.0 SYSTEM OVERVIEW
1.1 Key Terms
• Anticollision – Allows two transponders to be in
the files simultaneously and be verified individu-
ally.
• CH Mode – Code Hopping Mode. The HCS410
transmits a 69-bit transmission each time it is acti-
vated, with at least 32-bits changing each time the
encoder is activated.
• Encoder Key – A unique 64-bit key generated and
programmed into the encoder during the manu-
facturing process. The encoder key controls the
encryption algorithm and is stored in EEPROM on
the encoder device.
• IFF – Identify friend or foe is a means of validating
a token. A decoder sends a random challenge to
the token and checks that the response of the
token is a valid response.
• KEELOQ Encryption Algorithm – The high security
level of the HCS410 is based on the patented
KEELOQ technology. A block cipher encryption
algorithm based on a block length of 32 bits and a
key length of 64 bits is used. The algorithm
obscures the information in such a way that even
if the unencrypted/challenge information differs by
only one bit from the information in the previous
transmission/challenge, the next coded transmis-
sion/response will be totally different. Statistically,
if only one bit in the 32-bit string of information
changes, approximately 50 percent of the coded
transmission will change.
• Learn – The HCS product family facilitates several
learning strategies to be implemented on the
decoder. The following are examples of what can
be done.
Normal Learn –The receiver uses the same infor-
mation that is transmitted during normal operation to
derive the transmitter’s encoder key, decrypt the dis-
crimination value and the synchronization counter.
Secure Learn* – The transmitter is activated through
a special button combination to transmit a stored
60-bit value (random seed) that can be used for key
generation or be part of the key. Transmission of the
random seed can be disabled after learning is com-
pleted.
• Manufacturer’s Code – A 64-bit word, unique to
each manufacturer, used to produce a unique
encoder key in each transmitter (encoder).
• Passive Proximity Activation – When the HCS410
is brought into in a magnetic field without a
command given by the base station, the HCS410
can be programmed to give an RF transmission.
• Transport Code – A 32-bit transport code needs
to be given before the HCS410 can be inductively
programmed. This prevents accidental
programming of the HCS410.
*Secure Learn patent pending.
© 1997 Microchip Technology Inc.
Preliminary
DS40158C-page 3


3Pages


HCS410-IST 電子部品, 半導体
HCS410
2.0 DEVICE OPERATION
The HCS410 can either operate as a normal code hop-
ping transmitter with one or two IFF keys (Figure 2-1) or
as purely an IFF token with two IFF keys (Figure 2-2
and Figure 2-3). When used as a code hopping trans-
mitter the HCS410 only needs the addition of buttons
and RF circuitry for use as a transmitter. Adding the
transponder function to the transmitter requires the
addition of an inductor and two capacitors as shown in
Figure 2-1 and Figure 2-2. A description of each pin is
given in Table 2-1. Table 2-2 shows the function codes
for using the HCS410.
FIGURE 2-1: COMBINED TRANSMITTER/
TRANSPONDER CIRCUIT
18
27
36
45
1 µF
RF
FIGURE 2-2: TRANSPONDER CIRCUIT
18
27
36
45
1 µF
Figure 2-4 shows how to use the HCS410 with a 12V
battery as a code hopping transmitter. The circuit uses
the internal regulator, normally used for charging a
capacitor/battery in LC mode, to generate a 6V supply
for the HCS410.
FIGURE 2-4: HCS410 ENCODER WITH 12V
BATTERY
12V
1 8 6.3V
27
36
45
RF
FIGURE 2-5:
LED CONNECTION TO
S2/LED OUTPUT
VDD
220
220
S2/LED
Pulse
30
60k
FIGURE 2-3: 2-WIRE, 1 OR 2-KEY IFF
TOKEN
18
1 µF
2 7 Data I/O
36
45
FIGURE 2-6:
LCI1100
15V
LCI0100
LC PIN BLOCK DIAGRAM
6.7V VDD
Rectifier,
Damping,
Clamping
Damp
15V Out
Detector
MOD
DS40158C-page 6
Preliminary
© 1997 Microchip Technology Inc.

6 Page



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部品番号部品説明メーカ
HCS410-ISN

KEELOQ CODE HOPPING ENCODER AND TRANSPONDER

Microchip Technology
Microchip Technology
HCS410-IST

KEELOQ CODE HOPPING ENCODER AND TRANSPONDER

Microchip Technology
Microchip Technology


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