HCS500T-ISLASHST datasheet(4/42 Pages) MICROCHIP

Il numero della parte	HCS500T-I/ST

Spiegazioni elettronici	KEELOQ짰 Code Hopping Decoder

PDF	42 Pages

Scroll/Zoom	100%

Produttore elettronici	MICROCHIP [Microchip Technology]

Homepage	http://www.microchip.com

Logo

4 / 42 page

HCS500

DS40000153E-page 4

 2001-2015 Microchip Technology Inc.

FIGURE 1-3:

BASIC OPERATION OF RECEIVER (DECODER)

Note: Circled numbers indicate the order of execution.

2.0

PIN ASSIGNMENT

The description of the pins of the HCS500 decoder is

provided in Table 2-1.

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

Check for

Match

Perform Function

Indicated by

button press

Crypt Key

TABLE 2-1:

DECODER PIN ASSIGNMENT

Decoder

Function

I/O(1)

Buffer Type(1)

Description

1VDD

—

Power Connection

EE_CLK

TTL

Clock to I 2C™ EEPROM

EE_DAT

I/O

TTL

Data to I 2C™ EEPROM

4MCLR

Master clear input

S_DAT

I/O

TTL

Synchronous data from controller

S_CLK

TTL

Synchronous clock from controller

RFIN

TTL

RF input from receiver

GND

—

Ground connection

Note: P = power, I = in, O = out, and ST = Schmitt Trigger input.

HCS500T-I/ST Scheda tecnica(PDF) 4 Page - Microchip Technology

HCS500T-I/ST Scheda tecnica(HTML) 4 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Scheda tecnica Scarica

Link URL