MCP100 Microchip Technology, MCP100 Datasheet
MCP100
Manufacturer Part Number
MCP100
Description
Microcontroller Supervisory Circuit with Push-Pull Output
Manufacturer
Microchip Technology
Datasheet
1.MCP100.pdf
(8 pages)
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FEATURES
• Holds microcontroller in reset until supply voltage
• Resets microcontroller during power loss
• Precision monitoring of 3V, 3.3V, and 5V systems
• 7 voltage trip points available
• Active low RESET pin (MCP100) or active high
• Push-pull output
• Holds RESET/RESET for 350 ms (typical)
• Guaranteed RESET/RESET to V
• Accuracy of ±125mV for 5V systems and ±75mV
• 45 µA typical operating current
• Temperature range:
DESCRIPTION
The Microchip Technology Inc. MCP100/101 is a volt-
age supervisory device designed to keep a microcon-
troller in reset until the system voltage has reached the
proper level and stabilized. It also operates as protec-
tion from brown-out conditions when the supply voltage
drops below a safe operating level. Both devices are
available with a choice of seven different trip voltages
and both have push-pull outputs. The MCP100 has a
low active RESET pin and the MCP101 has a high
active RESET pin. The MCP100/101 will assert the
RESET/RESET signal whenever the voltage on the
V
DD
1999 Microchip Technology Inc.
reaches stable operating level
RESET (MCP101)
for 3V systems over temperature
- Industrial (I): -40 C to +85 C
Microcontroller Supervisory Circuit with Push-Pull Output
pin is below the trip-point voltage.
DD
= 1.0V
Preliminary
PACKAGES
BLOCK DIAGRAM
MCP100/101
Reference
Bandgap
V
DD
‘D’ Bondout
TO-92 with
Comparator
RST
RST
OR
MCP100
MCP101
+
-
V
DD
V
SS
RST
RST
V
OR
DD
SOT-23-3
Circuit
Delay
MCP100
MCP101
V
SS
Driver
Output
‘H’ Bondout
TO-92 with
V
DD
MCP100
MCP101
DS11187D-page 1
RST
RST
OR
V
SS
RESET
RESET
or
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