Datasheet

 2004-2014 Microchip Technology Inc. DS20001906D-page 15

MCP102/103/121/131

4.4 Usage in PIC

Microcontroller,

ICSP™ Applications (MCP121

only)

Figure 4-5 shows the typical application circuit for using

the MCP121 for voltage supervision function when the

PIC microcontroller will be programmed via the ICSP

feature. Additional information is available in TB087,

“Using Voltage Supervisors with PIC

Microcontroller

Systems which Implement In-Circuit Serial

Programming™”, DS91087.

FIGURE 4-5: Typical Application Circuit

for PIC

Microcontroller with the ICSP™

Feature.

Note: It is recommended that the current into the

RST

pin be current limited by a 1 k

resistor.

MCLR

(Reset Input)

(Active-low)

PIC

MCU

0.1 µF

1k

MCP121

RST