HCS362 datasheet(5/46 Pages) MICROCHIP

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DS40189E-page 5

HCS362

2.0

DEVICE DESCRIPTION

As shown in the typical application circuits (Figure 2-1),

the HCS362 is a simple device to use. It requires only

the addition of buttons and RF circuitry for use as the

transmitter in your security application. See Table 2-1

for a description of each pin and Figure 2-1 for typical

circuits. Figure 2-2 shows the device I/O circuits.

TABLE 2-1:

PIN DESCRIPTIONS

FIGURE 2-1:

TYPICAL CIRCUITS

Name

Number

Description

Switch input 0

Switch input 1

Switch input 2 / Clock pin when in

Programming mode

S3/

RFEN

Switch input 3 / RF enable output

VSS

Ground reference connection

DATA

Data output pin / DATA I/O pin for

Programming mode

LED/

SHIFT

Cathode connection for LED and

DUAL mode SHIFT input

VDD

Positive supply voltage

VDD

Tx out

LED

VDD

DATA

VSS

a) Two button remote control

VDD

Tx out

RFEN

VDD

DATA

VSS

c) Four button remote control with RF Enable

B3 B2 B1 B0

Note:

Up to 15 functions can be implemented by

pressing more than one button simultane-

ously or by using a suitable diode array.

VDD

Tx out

VDD

DATA

VSS

b) Four button remote control

with PLL output (Note)

PLL control

VDD

Tx out

VDD

DATA

VSS

d) DUAL key, four buttons remote control

B3 B2 B1 B0

SHIFT

1 KW

LED

LED/SHIFT

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