HCS362
K
EE
L
OQ
廬
Code Hopping Encoder
FEATURES
Security
Programmable 28/32-bit serial number
Two programmable 64-bit encryption keys
Programmable 60-bit seed
Each transmission is unique
69-bit transmission code length
32-bit hopping code
37-bit fixed code (28/32-bit serial number,
4/0-bit function code, 1-bit status, 2-bit CRC/time,
2-bit queue)
鈥?Encryption keys are read protected
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PACKAGE TYPES
PDIP, SOIC
S0
S1
S2
S3/RFEN
1
HCS362
2
3
4
8
7
6
5
V
DD
LED/SHIFT
DATA
V
SS
TSSOP
Operation
2.0V 鈥?6.3V operation
Four button inputs
15 functions available
Selectable baud rates and code word blanking
Programmable minimum code word completion
Battery low signal transmitted to receiver with
programmable threshold
鈥?Non-volatile synchronization data
鈥?PWM and Manchester modulation
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S2
S3/RFEN
V
SS
DATA
1
2
3
4
8
7
6
5
S1
S0
V
DD
LED/SHIFT
HCS362 BLOCK DIAGRAM
Oscillator
RESET Circuit
LED
RFEN
PLL Driver
LED Driver
Controller
Power
Latching
and
Switching
HCS362
Other
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RF Enable output 鈥?PLL interface
Easy to use programming interface
On-chip EEPROM
On-chip tunable oscillator and timing components
Button inputs have internal pull-down resistors
Current limiting on LED output
Minimum component count
DATA
EEPROM
Encoder
32-bit Shift Register
V
SS
V
DD
S3 S2 S1 S0
SHIFT
Button Input Port
Enhanced Features Over HCS300
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60-bit seed vs. 32-bit seed
2-bit CRC for error detection
28/32-bit serial number select
Tunable oscillator (+/鈭?0% over specified voltage
ranges)
Time bits option
Queue bits
TSSOP package
Programmable Time-out and Guard Time
Typical Applications
The HCS362 is ideal for Remote Keyless Entry (RKE)
applications. These applications include:
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Automotive RKE systems
Automotive alarm systems
Automotive immobilizers
Gate and garage door openers
Identity tokens
Burglar alarm systems
漏
2002 Microchip Technology Inc.
Preliminary
DS40189D-page 1
next
HCS362-I/P 產(chǎn)品屬性
Microchip
編碼器、解碼器、復(fù)用器和解復(fù)用器
+ 85 C
Through Hole
PDIP-8
Tube
- 40 C
60
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