Features: +5V, +3.3V, and +3V Versions
No External Components
Low Cost
Precise Power-Down Reset Threshold
140ms Min Power-On Reset Delay
Immune to Short Negative VCC Transients
8-Pin DIP, PAMAX, and SO Package
Low Supply Current: 35PAA - MAX709R/S/
65PAA - MAX709L/ApplicationMinimum Component Count,
Low-Cost Processor Systems
Pinout
SpecificationsTerminal Voltage (with respect to GND)
VCC..........................................................................-0.3V to 6.0V
RESET...........................................................-0.3V to (VCC+ 0.3V)
Input Current, VCC...............................................................20mA
Output Current, RESET.........................................................20mA
Rate-of-Rise, VCC.............................................................100V/PA
Continuous Power Dissipation (TA = +70)
Plastic DIP (derate 9.09mW/ above +70)...................727mW
MAX (derate 4.10mW/ above +70)...........................330mW
SO (derate 5.88mW/ above +70)...............................471mW
Operating Temperature Ranges
MAX709_C___ ...........................................................0 to +70
MAX709_E___ . .......................................................-40 to+85
Storage Temperature Range .................................-65to+160
Lead Temperature (soldering, 10sec).................................+300
DescriptionThe MAX709 provides a system reset during power-up, power-down, and brownout conditions. When VCC falls below the reset threshold, RESET goes low and hold the PAP in reset for 140ms min after VCC rises above the threshold.
The RESET output of MAX709 is guaranteed to be in the correct state with VCC down to 1V. The MAX709 provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, or +3V powered systems. The MAX709 is available 8-pin DIP, PAMAX, and SO packages
MAX709 Data Sheet
