HCS473T/SL Microchip Technology, HCS473T/SL Datasheet - Page 36

• Manufacturer Part Number: HCS473T/SL
• Description: IC KEELOQ 3AXIS TRANSCODR 14SOIC
• Manufacturer: Microchip Technology
• Series: KEELOQ®r
• Type: Code Hopping Encoder and Transponderr

Specifications of HCS473T/SL

• Applications: Access Control Systems
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

HCS473
FIGURE 3-23:
DS40035C-page 34
Wake-up Sequence
Transponder Select Sequence
ACK Response Sequences Concluding with CRC
Data Response Sequences Concluding with CRC
- Present Transport Code
- Write
- Anticollision Off
- IFF
- Read
- Request Hopping Code
ASK
FSK
ASK
FSK
ASK
FSK
ASK
FSK
Inductive In (LC)
Inductive In (LC)
Inductive In (LC)
Inductive In (LC)
PLL (RFEN)
PLL (RFEN)
PLL (RFEN)
PLL (RFEN)
PLL (RFEN)
PLL (RFEN)
PLL (RFEN)
PLL (RFEN)
RF (DATA)
RF (DATA)
RF (DATA)
RF (DATA)
RF (DATA)
RF (DATA)
RF (DATA)
RF (DATA)
RFEN BEHAVIOR DURING LF COMMUNICATION
CRC
CRC
12-Bit VID
1 LF
T
SF
TE
Response
Response
Time
Time
Preliminary
TID=0
TID=1 TID=2 TID=3
1 LF
TE
1 LF
T
TE
CMD
Command
Command
1 LF
T
CMD
TE
Command
Next
 2002 Microchip Technology Inc.
Command