Specification	MAX818LESA+

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Reset	Active Low
Reset Timeout [Min]	140 ms
Supplier Device Package	8-SOIC
Type	Battery Backup Circuit

MAX818 Series

+5V Microprocessor Supervisory Circuits

Part	Package / Case	Package / Case	Package / Case	Reset Timeout [Min]	Number of Voltages Monitored	Reset	Mounting Type	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Type	Voltage - Threshold	Output	Package / Case
Analog Devices Inc./Maxim Integrated MAX818LESA+	0.154 in	8-SOIC	3.9 mm	140 ms	1	Active Low	Surface Mount	8-SOIC	85 C	-40 ¯C	Battery Backup Circuit
Analog Devices Inc./Maxim Integrated MAX818MEPA		8-DIP (0.300" 7.62mm)		140 ms	1	Active Low	Through Hole	8-PDIP	85 °C	-40 C	Power Supply Monitor	4.4 V	Open Drain or Open Collector
Analog Devices Inc./Maxim Integrated MAX818MCPA+		8-DIP (0.300" 7.62mm)		140 ms	1	Active Low	Through Hole	8-PDIP	70 °C	0 °C	Battery Backup Circuit	4.4 V
Analog Devices Inc./Maxim Integrated MAX818LCSA+T	0.154 in	8-SOIC	3.9 mm	140 ms	1	Active Low	Surface Mount	8-SOIC	70 °C	0 °C	Battery Backup Circuit
Analog Devices Inc./Maxim Integrated MAX818MCUA		8-MSOP 8-TSSOP		140 ms	1	Active Low	Surface Mount	8-µMAX	85 C	-40 ¯C	Simple Reset/Power-On Reset	4.4 V	Open Drain or Open Collector	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated MAX818MESA+	0.154 in	8-SOIC	3.9 mm	140 ms	1	Active Low	Surface Mount	8-SOIC	85 C	-40 ¯C	Battery Backup Circuit	4.4 V
Analog Devices Inc./Maxim Integrated MAX818MCUA+
Analog Devices Inc./Maxim Integrated MAX818LEPA+		8-DIP (0.300" 7.62mm)		140 ms	1	Active Low	Through Hole	8-PDIP	85 C	-40 ¯C	Battery Backup Circuit
Analog Devices Inc./Maxim Integrated MAX818LCSA+	0.154 in	8-SOIC	3.9 mm	140 ms	1	Active Low	Surface Mount	8-SOIC	70 °C	0 °C	Battery Backup Circuit
Analog Devices Inc./Maxim Integrated MAX818MCSA+	0.154 in	8-SOIC	3.9 mm	140 ms	1	Active Low	Surface Mount	8-SOIC	70 °C	0 °C	Battery Backup Circuit	4.4 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	80	$ 9.36
		10000	$ 9.36
	Tube	1	$ 10.37
		10	$ 7.23
		25	$ 6.42
		100	$ 5.51
		250	$ 5.07
		500	$ 4.80
		1000	$ 4.58

Description

General part information

MAX818 Series

The MAX817/MAX818/MAX819 microprocessor (µP) supervisory circuits simplify power-supply monitoring, battery control, and chip-enable gating in µP systems by reducing the number of components required. These devices are designed for use in +5V-powered systems. Low supply current (11µA typical) and small package size make these devices ideal for portable applications. The MAX817/MAX818/MAX819 are specifically designed to ignore fast transients on VCC. Other supervisory functions include active-low reset, backup-battery switchover, watchdog input, battery freshness seal, and chip-enable gating. The Selector Guide in the full data sheet lists the specific functions available from each device.These devices offer two pretrimmed reset threshold voltages for ±5% or ±10% power supplies: 4.65V for the L versions and 4.40V for the M versions. The MAX817/ MAX818/MAX819 are available in space-saving µMAX® packages, as well as 8-pin DIP/SO.ApplicationsBattery-Powered Computers/ControllersCritical µP MonitoringEmbedded ControllersIntelligent InstrumentsPortable Equipment