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AN820

Title	Title System Supervisors in ICSP Architectures
Name	Name AN820
Date	Date 06/24/2015
Product Categories	Product Categories Power Management ICs / Voltage Detectors
Description	Description Semiconductor manufacturers have designed several types of circuit supervisors with varying types of functionality over the past few years. Some supervisors incorporate watchdog features as well as complex functions, such as programmable threshold levels. As it turns out, most system supervisor data sheets address typical supervisor functions related to Power-on Reset, power-down, and brown-out conditions. In order to serve a wide customer base, semiconductor manufacturers should also address system supervisors designed into systems where microcontrollers (MCUs) and programmable logic devices (PLDs) are programmed in-circuit. Programming PICmicro ® microcontrollers in this fashion is known as In-Circuit Serial Programming TM (ICSP TM ), which can be implemented for a variety of reasons, including field upgrades.

Silicon Products

Title	Product	Title
MCP103 1uA Supervisor Push-Pull Active Low	MCP103	1uA Supervisor Push-Pull Active Low
MCP131 1uA Supervisor Open Drain Active Low	MCP131	1uA Supervisor Open Drain Active Low
MCP121 1uA Supervisor Open Drain Active Low	MCP121	1uA Supervisor Open Drain Active Low
MCP102 1uA Supervisor Push-Pull Active Low	MCP102	1uA Supervisor Push-Pull Active Low
TC52 EOL	TC52	EOL
TC1270A Voltage Supervisor with Manual Reset Input	TC1270A	Voltage Supervisor with Manual Reset Input
MCP1318 Voltage Supervisor, Push-Pull, Active Low	MCP1318	Voltage Supervisor, Push-Pull, Active Low
MCP1317 Voltage Supervisor, Push-Pull, Active High	MCP1317	Voltage Supervisor, Push-Pull, Active High
MCP101 Microcontroller Supervisory Circuit with Push-Pull Output	MCP101	Microcontroller Supervisory Circuit with Push-Pull Output
MCP1321 Voltage Supervisor, Open Drain, Active Low	MCP1321	Voltage Supervisor, Open Drain, Active Low
MCP112 Micropower Voltage Detector, Active Low, Push Pull	MCP112	Micropower Voltage Detector, Active Low, Push Pull
MCP1318M Voltage Supervisor, Open Drain, Active Low	MCP1318M	Voltage Supervisor, Open Drain, Active Low
TC1232 Microprocessor Monitor w/ Watchdog Timer	TC1232	Microprocessor Monitor w/ Watchdog Timer
MCP1320 Voltage Supervisor, Open Drain, Active Low	MCP1320	Voltage Supervisor, Open Drain, Active Low
MCP810 Microcontroller Supervisory Circuit w/ Push Pull Active High	MCP810	Microcontroller Supervisory Circuit w/ Push Pull Active High
TCM809 3-Pin Microcontroller Reset Monitor	TCM809	3-Pin Microcontroller Reset Monitor
TC1273 EOL	TC1273	EOL
TC1278 EOL	TC1278	EOL
TC1274 EOL	TC1274	EOL
TC1270 EOL	TC1270	EOL
TCM811 EOL	TCM811	EOL
MCP130 Microcontroller Supervisory Circuit with Open Drain Output	MCP130	Microcontroller Supervisory Circuit with Open Drain Output
MCP1316 Voltage Supervisor, Push-Pull, Active Low	MCP1316	Voltage Supervisor, Push-Pull, Active Low
TC1271A Voltage Supervisor with Manual Reset Input	TC1271A	Voltage Supervisor with Manual Reset Input
mcp1319 Voltage Supervisor, Push-Pull, Active Low	mcp1319	Voltage Supervisor, Push-Pull, Active Low
TC1272A 3-Pin Reset Monitor	TC1272A	3-Pin Reset Monitor
MCP120 Microcontroller Supervisory Circuit with Open Drain Output	MCP120	Microcontroller Supervisory Circuit with Open Drain Output
TC1275 EOL	TC1275	EOL
TC1271 EOL	TC1271	EOL
TCM812 EOL	TCM812	EOL
TCM810 3-Pin Microcontroller Reset Monitor	TCM810	3-Pin Microcontroller Reset Monitor
MCP1316M Voltage Supervisor, Open Drain, Active Low	MCP1316M	Voltage Supervisor, Open Drain, Active Low
MCP1322 Voltage Supervisor, Open Drain, Active Low	MCP1322	Voltage Supervisor, Open Drain, Active Low
MCP1319M Voltage Supervisor, Open Drain, Active Low	MCP1319M	Voltage Supervisor, Open Drain, Active Low
MCP100 Microcontroller Supervisory Circuit with Push-Pull Output	MCP100	Microcontroller Supervisory Circuit with Push-Pull Output
TC1276 EOL	TC1276	EOL
TC1279 EOL	TC1279	EOL
TC1272 EOL	TC1272	EOL
TC1277 EOL	TC1277	EOL
TC51 1uA Voltage detector with Output Delay	TC51	1uA Voltage detector with Output Delay
MCP111 1uA Supervisor Push-Pull Active Low	MCP111	1uA Supervisor Push-Pull Active Low
TC1270AN Voltage Supervisor with Manual Reset Input	TC1270AN	Voltage Supervisor with Manual Reset Input
MCP809 Microcontroller Supervisory Circuit w/ Push Pull Active Low	MCP809	Microcontroller Supervisory Circuit w/ Push Pull Active Low
TC32M EOL	TC32M	EOL