Product Summary

The MAX793ESE microprocessor (µP) supervisory circuits monitor and control the activities of +3.0V µPs by providing backup-battery switchover, among other features such as low-line indication, µP reset, write protection for CMOS RAM, and a watchdog. The a choice of reset threshold oltage range (denoted by suffix letter) : 3.00V to 3.15V (T) , 2.85V to 3.00V (S), and 2.55V to 2.70V (R) . Applications of the MAX793ESE include: Battery-Powered Computers and Controllers, Embedded Controllers, Intelligent Controllers, Critical µP Power Monitoring and Portable Equipment.

Parametrics

MAX793ESE absolute maximum ratings: (1) Terminal Voltage (with respect to GND) VCC : -0.3V to 6.0V; (2) VBAITT: -0.3V to 6.0V; (3) All Other Inputs: -0.3V to the higher of VCC or VBATT; (4) Continuous Input Current VCC: 200mA; (5) VBATT: 50mA; (6) GND: 20mA; (7) Output Current, Vout: 200mA, All Other Outputs : 20mA; (8) Operating Temperature Ranges: -40°C to +160°C ; (9) Storage Temperature Range: -65°C to +160°C; (10) Lead Temperature (soldering, 10sec) : +300°C.

Features

MAX793ESE features: (1) Precision Supply-Voltage Monitor:Fixed Reset Trip Voltage (MAX793/MAX795) , Adjustable Reset Trip Voltage (MAX794) ; (2)Guaranteed Reset Assertion to VCC = 1V; (3) Backup-Battery Power Switching—Battery Voltage Can Exceed VCC (4) On-Board Gating of Chip-Enable Signals—7ns Max Propagation Delay, MAX793/MAX794 Only; (5) Battery Freshness Seal; (6) Battery OK Output (MAX793) ; (7)Emitted Voltage Monitor for Power-Fail or Low-Battery Warning; (8) Independent Watchdog Timer (1.6sec timeout) ; (9) Manual Reset Input.

Diagrams

MAX793ESE Circuit

MAX700CPA+
MAX700CPA+
Maxim Integrated Products
Supervisory Circuits Power-Supply Monitor w/Reset
Data Sheet
0-1: $3.60
1-25: $2.40
25-50: $1.74
50-250: $1.71
MAX700CSA+
MAX700CSA+
Maxim Integrated Products
Supervisory Circuits Power-Supply Monitor w/Reset
Data Sheet
0-1: $3.58
1-25: $2.40
25-50: $1.74
50-100: $1.72
MAX702EPA+
MAX702EPA+
Maxim Integrated Products
Supervisory Circuits Power-Supply Monitor w/Reset
Data Sheet
0-1: $4.68
1-25: $3.12
25-50: $2.81
50-100: $2.26
MAX7030LATJ+T
MAX7030LATJ+T
Maxim Integrated Products
RF Transceiver 315/345/433.92MHz ASK Transceiver
Data Sheet
0-1530: $2.23
1530-2500: $2.23
MAX703
MAX703
Other

Data Sheet
Negotiable 
MAX7042EVKIT-433+
MAX7042EVKIT-433+
Maxim Integrated Products
RF Development Tools MAX7042 Eval Kit
Data Sheet
0-1: $75.19
1-2: $73.06
2-5: $71.87
5-10: $71.29