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HCS515-IP 数据表(PDF) 4 Page - Microchip Technology

部件名 HCS515-IP
功能描述  KEELOQ CODE HOPPING DECODER
PDF  28 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

HCS515-IP 数据表(HTML) 4 Page - Microchip Technology

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HCS515
DS40183D-page 4
© 2002 Microchip Technology Inc.
FIGURE 1-3:
BASIC OPERATION OF RECEIVER (DECODER)
NOTE: Circled numbers indicate the order of execution.
2.0
PIN ASSIGNMENT
Button Press
Information
EEPROM Array
Manufacturer Code
32 Bits of
Encrypted Data
Serial Number
Received Information
Decrypted
Synchronization
Counter
Check for
Match
Sync Counter
Serial Number
KEELOQ
Decryption
Algorithm
1
3
4
Check for
Match
2
Perform Function
Indicated by
button press
5
Crypt Key
PIN
Decoder
Function
I/O(1)
Buffer
Type(1)
Description
1NC
—
—
No connection
2
NC
—
—
No connection
3VDD
—
—
Power connection
4
S1
O
TTL
S1 function output
5
S0
O
TTL
S0 function output
6MCLR
I
ST
Master clear input
7
NC
—
—
No connection
8
NC
—
—
No connection
9
S_DAT
I/O
TTL
Synchronous data from controller
10
S_CLK
I
TTL
Synchronous clock from controller
11
RF_IN
I
TTL
Input from RF receiver
12
GND
—
—
Ground connection
13
NC
—
—
No connection
14
NC
—
—
No connection
Note:
P = power, I = in, O = out, and ST = Schmitt Trigger input.



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