HCS410-IP Microchip Technology, HCS410-IP Datasheet - Page 7

• Manufacturer Part Number: HCS410-IP
• Description: KEELOQ CODE HOPPING ENCODER AND TRANSPONDER
• Manufacturer: Microchip Technology

2.1
The HCS410 has the same footprint as all of the other
devices in the K
that are reserved for transponder operations and the
LED that is now located at the same position as the S2
switch input.
TABLE 2-1:
TABLE 2-2:
1997 Microchip Technology Inc.
1
2
3
4
5
6
7
8
S2/LED
Name
PWM
LC1
LC0
V
V
S0
S1
SS
DD
Pinout Description
LC0
0
0
0
0
0
0
0
1
EE
PINOUT DESCRIPTION
FUNCTION CODES
L
OQ
S2
0
0
0
1
1
1
1
0
Pin Number
family, except for the two pins
1
2
3
4
5
6
7
8
S1
0
1
1
0
0
1
1
0
S0
1
0
1
0
1
0
1
0
Switch input 0
Switch input 1
Switch input 2/LED output, Clock pin for programming mode
Transponder interface pin
Ground reference connection
Pulse width modulation (PWM)
output pin/Data pin for
programming mode
Transponder interface pin.
Positive supply voltage connection
Normal Code Hopping transmission
Normal Code Hopping transmission
Delayed seed transmission if allowed by SEED and TMPSD/Normal
Code Hopping transmission
Normal Code Hopping transmission
Normal Code Hopping transmission
Normal Code Hopping transmission
Immediate seed transmission if allowed by SEED and TMPSD/Normal
Code Hopping transmission
Transponder mode
Preliminary
• S[0:1] – are inputs with Schmitt Trigger detectors
• S2/LED – uses the same input detection circuit as
• LC[0:1] – is the transponder interface pins to be
and an internal 60k (nominal) pull-down
resistors.
S0/S1 but with an added PMOS transistor con-
nected to V
to drive an LED.
connected to an LC circuit for inductive communi-
cation. LC0 is connected to a detector for data
input. Data output is achieved by clamping LC0
and LC1 to GND through two NMOS transistors.
These pins are also connected to a rectifier and a
regulator, providing power to the rest of the logic
and for charging an external power source (Bat-
tery/Capacitor) through V
Description
Comments
DD
capable of sourcing enough current
DD
.
HCS410
DS40158C-page 7