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MAX709L, MAX709M, MAX709R, MAX709S, MAX709T
Power-Supply Monitor with Reset
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Status
Active: In Production.
Description
The MAX709 provides a system reset during power-up, power-down, and brownout conditions. When VCC falls below the reset threshold, RESET goes low and holds the µP in reset for 140ms min after VCC rises above the threshold.
The RESET output 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, µMAX®, and SO packages.
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Data Sheet
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Key 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, µMAX, and SO Packages
- Low Supply Current:
- 35µA - MAX709R/S/T
- 65µA - MAX709L/M
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Applications/Uses
- Minimum Component Count, Low-Cost Processor Systems
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Key Specifications:
| Supervisors (1 Monitored Voltage) |
| Part Number |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| min |
@ +25°C |
max |
See Notes |
| MAX709 |
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85ms to 300ms |
No Watchdog |
2.5 |
150 |
$1.16 @1k |
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See All Supervisors (1 Monitored Voltage) (274)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Notes and Comments
+5V, +3.3V, +3V
Didn't Find What You Need?
Information Index
Document Ref.: 19-0136
Rev 2;
2006-03-27
This page last modified: 2007-07-17
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