hcs365 Microchip Technology Inc., hcs365 Datasheet - Page 7

• Manufacturer Part Number: hcs365
• Description: Keeloq Code Hopping Encoder
• Manufacturer: Microchip Technology Inc.

FIGURE 2-2:
2002 Microchip Technology Inc.
DATA I/O
Figure 2-2(A)
S0, S1, S2
Inputs
DATA, RFEN
STEP
Outputs
Figure 2-2(C)
Figure 2-2(B)
I/O CIRCUITS
Z
PFET
NFET
P
N
IN
V
V
DD
DD
DATA OUT
Preliminary
FIGURE 2-3:
No
No
Sample Buttons
Get Config
Increment
Counter
Transmit
Encrypt
Buttons
Buttons
START
Time-
Time
Seed
Seed
THE DEVICE OPERATION
BASIC FLOW DIAGRAM OF
MTX
New
TX?
Out
No
No
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
HCS365
STOP
Button
Seed
DS41109D-page 7
Seed
No
Read
Yes