MAX704 Series

Low-Cost Microprocessor Supervisory Circuits with Battery Backup

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Low-Cost Microprocessor Supervisory Circuits with Battery Backup

Part	Voltage - Threshold	Package / Case	Package / Case	Package / Case	Type	Mounting Type	Supplier Device Package	Number of Voltages Monitored	Reset Timeout [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Reset	Output	Antenna Connector	Power - Output	Voltage - Supply [Max]	Voltage - Supply [Min]	Current - Transmitting	Data Interface	Data Rate (Max)	Modulation or Protocol	Frequency [Min]	Frequency [Max]	Applications
Analog Devices Inc./Maxim Integrated MAX704SCSA+T	2.925 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	0 °C	70 °C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX7044AKA-T			SOT-23-8			Surface Mount	SOT-23-8			-40 C	125 °C			PCB Surface Mount	12.5 dBm	3.6 V	2.1 V	14 mA	PCB Surface Mount	100 kbps	ASK OOK	300 MHz	450 MHz	RKE Security Systems TPM
Analog Devices Inc./Maxim Integrated MAX704TESA	3.075 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	-40 ¯C	85 C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704SESA	2.925 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	-40 ¯C	85 C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704EPA+	4.4 V		8-DIP (0.300" 7.62mm)		Battery Backup Circuit	Through Hole	8-PDIP	1	140 ms	-40 ¯C	85 C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704SCSA	2.925 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	0 °C	70 °C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704ESA+	4.4 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	-40 ¯C	85 C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704RCSA	2.625 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	0 °C	70 °C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704TEPA+	3.075 V		8-DIP (0.300" 7.62mm)		Battery Backup Circuit	Through Hole	8-PDIP	1	140 ms	-40 ¯C	85 C	Active Low	Push-Pull Totem Pole
Analog Devices Inc./Maxim Integrated MAX704RESA+	2.625 V	0.154 in	8-SOIC	3.9 mm	Battery Backup Circuit	Surface Mount	8-SOIC	1	140 ms	-40 ¯C	85 C	Active Low	Push-Pull Totem Pole

Catalog

Low-Cost Microprocessor Supervisory Circuits with Battery Backup

Description

These microprocessor (µP) supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in µP systems. They significantly improve system reliability and accuracy compared to separate ICs or discrete components.These devices are designed for use in systems powered by 3.0V or 3.3V supplies. See the selector guide in the back of this data sheet for similar devices designed for 5V systems. The suffixes denote different reset threshold voltages: 3.075V (T), 2.925V (S), and 2.625V (R) (seeReset Thresholdsection in theDetailed Description). All these parts are available in 8-pin DIP and SO packages. Functions offered in this series are as follows:PartActive-Low ResetActive-High ResetWatchdog InputManual Reset InputBackup-Battery SwitchPower-Fail Threshold AccuracyPower-Fail ComparatorReset WindowMAX690√√√±4%√±75mVMAX704√√√±4%√±75mVMAX802√√√±2%√±2%MAX804√√√±2%√±2%MAX805√√√±4%√±75mVMAX806√√√±2%√±2%ApplicationsBattery-Powered Computers/ControllersCritical µP MonitoringEmbedded ControllersIntelligent InstrumentsPortable Equipment