MCP121-450E/TO Microchip Technology, MCP121-450E/TO Datasheet - Page 14

• Manufacturer Part Number: MCP121-450E/TO
• Description: IC SUPERVISOR 4.38V LOW TO-92
• Manufacturer: Microchip Technology
• Type: Simple Reset/Power-On Resetr

Specifications of MCP121-450E/TO

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 80 ms Minimum
• Voltage - Threshold: 4.38V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (Standard Body), TO-226
• Threshold Voltage: 4.38V
• No. Of Supervisors / Monitors: 1
• Supply Voltage Range: 1V To 5.5V
• Reset Type: Active-Low
• Supply Current: 20µA
• Delay Time: 120ms
• Digital Ic Case Style: TO-92
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP102/103/121/131
4.4
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.
FIGURE 4-5:
for PICmicro
feature.
DS21906B-page 14
Note:
MCP121
V
V
SS
DD
RST
Using in PICmicro
Microcontroller, ICSP™
Applications (MCP121 only)
It is recommended that the current into the
RST pin be current limited by a 1 k
resistor.
®
Microcontroller with the ICSP™
0.1µF
1 k
Typical Application Circuit
R
V
PU
DD
®
/V
PP
MCLR
(Reset Input)
(Active-low)
PICmicro
MCU
V
V
SS
DD
®
®
© 2005 Microchip Technology Inc.