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MCP102

Micropower Voltage Supervisors

Microchip Technology 

MCP102/103/121/131

4.4 Using in PICmicro®

Microcontroller, ICSP™

Applications (MCP121 only)

Figure 4-5 shows the typical application circuit for using

the MCP121 for voltage superviory function when the

PICmicro microcontroller will be programmed via the

ICSP feature. Additional information is available in

TB087, “Using Voltage Supervisors with PICmicro®

Microcontroller Systems which Implement In-Circuit

Serial Programming™”, DS91087.

Note:

It is recommended that the current into the

RST pin be current limited by a 1 kΩ

resistor.

VDD

MCP121

RST

VSS

0.1µF

1 kΩ

VDD/VPP

RPU

VDD

PICmicro®

MCU

MCLR

(Reset Input)

(Active-low)

VSS

FIGURE 4-5:

Typical Application Circuit

for PICmicro® Microcontroller with the ICSP™

feature.

DS21906B-page 14

© 2005 Microchip Technology Inc.

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