參數(shù)資料
型號: HCS361-ISN
廠商: Microchip Technology Inc.
英文描述: IC CONV AC/DC -12V 90MA SIP9
中文描述: 而Keeloq跳碼編碼器
文件頁數(shù): 5/24頁
文件大小: 343K
代理商: HCS361-ISN
HCS361
1996 Microchip Technology Inc.
Preliminary
DS40146C-page 5
FIGURE 2-2:
ENCODER OPERATION
3.0
EEPROM MEMORY
ORGANIZATION
The HCS361 contains 192 bits (12 x 16-bit words) of
EEPROM memory (Table 3-1). This EEPROM array is
used to store the encryption key information,
synchronization value, etc. Further descriptions of the
memory array is given in the following sections.
TABLE 3-1
EEPROM MEMORY MAP
3.1
Key_0 - Key_3 (64-Bit Encryption Key)
The 64-bit encryption key is used by the transmitter to
create the encrypted message transmitted to the
receiver. This key is created and programmed at the
time of production using a key generation algorithm.
Inputs to the key generation algorithm are the serial
number for the particular transmitter being used and a
secret manufacturer’s code. While the key generation
algorithm supplied from Microchip is the typical method
used, a user may elect to create their own method of
key generation. This may be done providing that the
decoder is programmed with the same means of creat-
ing the key for decryption purposes. If a seed is used,
the seed will also form part of the input to the key gen-
eration algorithm.
Reset and Debounce Delay
(6.5 ms)
Sample Inputs
Update Sync Info
Encrypt With
Encryption Key
Load Transmit Register
Buttons
Added
All
Buttons
Released
(A button has been pressed)
Transmit
Stop
No
Yes
No
Yes
Complete Code
Word Transmission
WORD
ADDRESS
MNEMONIC
DESCRIPTION
0
KEY_0
64-bit encryption
key (word 0)
64-bit encryption
key (word 1)
64-bit encryption
key (word 2)
64-bit encryption
key (word 3)
16-bit
zation value
16-bit
zation
value (word 2)
Set to 0000H
Seed Value
(word 0)
Seed Value
(word 1)
Device Serial
Number (word 0)
Device Serial
Number (word 1)
Configuration
Word
1
KEY_1
2
KEY_2
3
KEY_3
4
SYNC_A
synchroni-
5
SYNC_B/SEED_2
synchroni-
or
seed
6
7
RESERVED
SEED_0
8
SEED_1
7
SER_0
10
SER_1
11
CONFIG
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HCS361-SN 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ CODE HOPPING ENCODER
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HCS361T-I/SN 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2-6.6V RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
HCS362 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Memory Programming Specification