HCS361-I/P Microchip Technology, HCS361-I/P Datasheet - Page 13

• Manufacturer Part Number: HCS361-I/P
• Description: IC CODE HOPP ENCODER 15FUNC 8DIP
• Manufacturer: Microchip Technology
• Type: Code Hopping Encoderr

Specifications of HCS361-I/P

• Applications: Remote Secure Access, Keyless Entry
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Ic Function: Encoder IC
• Supply Voltage Range: 2V To 6.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: DIP
• No. Of Pins: 8
• Supply Voltage Max: 6.6V
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 4-2:
2002 Microchip Technology Inc.
WAKE-UP:
CODE WORD:
WAKE-UP (TXWAK=1)
VPWM BIT ENCODING:
VPWM TRANSMISSION SEQUENCE:
1
T
18xT
BP
E
1
Dead Time
VPWM TRANSMISSION FORMAT (MOD = 1)
Preamble
T
BP
6
33% Duty Cycle Wake-Up sequence 250xT
Preamble Header Encrypt Fixed
10xT
on Transition Low to High
on Transition High to Low
SPM=1
SPM=0
Pulse
E
Sync
10
1st CODE WORD
10xT
E
Header
Code Word
T
E
T
BP
Encrypted Portion
T
T
T
BP
E
T
2
E
X
BP
LOGIC 0
LOGIC 0
T
E
Guard
E
Preamble Header Encrypt
84
T
T
E
2
BP
T
X
LOGIC 1
BP
LOGIC 1
Fixed Code Portion
T
E
Dead Time 258xT
HCS361
DS40146E-page 13
E
Guard
Time