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MAX6316, MAX6316M, MAX6317, MAX6318, MAX6319, MAX6320, MAX6321, MAX6322
5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
Versatile, Customizable SOT Reset + Watchdog ICs Offer 3,224 Unique Options
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Status
Active: In Production.
Description
The MAX6316–MAX6322 family of microprocessor (µP) supervisory circuits monitors power supplies and microprocessor activity in digital systems. It offers several combinations of push/pull, open-drain, and bidirectional (such as Motorola 68HC11) reset outputs, along with watchdog and manual reset features. The Selector Guide below lists the specific functions available from each device. These devices are specifically designed to ignore fast negative transients on VCC. Resets are guaranteed valid for VCC down to 1V.
These devices are available in 26 factory-trimmed reset threshold voltages (from 2.5V to 5V, in 100mV increments), featuring four minimum power-on reset timeout periods (from 1ms to 1.12s), and four watchdog timeout periods (from 6.3ms to 25.6s). Thirteen standard versions are available with an order increment requirement of 2500 pieces (see Standard Versions table in the full data sheet); contact the factory for availability of other versions, which have an order increment requirement of 10,000 pieces.
The MAX6316–MAX6322 are offered in a miniature 5-pin SOT23 package.
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Data Sheet
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Key Features
- Small 5-Pin SOT23 Package
- Available in 26 Reset Threshold Voltages
- 2.5V to 5V, in 100mV Increments
- Four Reset Timeout Periods
- 1ms, 20ms, 140ms, or 1.12s (min)
- Four Watchdog Timeout Periods
- 6.3ms, 102ms, 1.6s, or 25.6s (typ)
- Four Reset Output Stages
- Active-High, Push/Pull
- Active-Low, Push/Pull
- Active-Low, Open-Drain
- Active-Low, Bidirectional
- Guaranteed Reset Valid to VCC = 1V
- Immune to Short Negative VCC Transients
- Low Cost
- No External Components
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Applications/Uses
- Computers: Desktop, Workstation, Server
- Controllers
- Embedded Control Systems
- Intelligent Instruments
- Portable Battery-Powered Equipment
- Portable Computing
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Key Specifications:
| Supervisors (1 Monitored Voltage) |
| Part Number |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Watchdog Timeout |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| min |
@ +25°C |
max |
See Notes |
| MAX6316L |
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| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | >1s |
|
Input (WDI) |
|
Manual Reset |
1.5 |
12 |
$1.21 @1k |
| MAX6316M |
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Input (WDI) |
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Manual Reset |
$1.21 @1k |
| MAX6317H |
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Input (WDI) |
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Manual Reset |
$1.21 @1k |
| MAX6318LH |
| Active High | | Active Low | | Push-Pull |
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Input (WDI) |
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- |
$1.21 @1k |
| MAX6318MH |
| Active High | | Active Low | | Bidirectional | | Push-Pull |
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Input (WDI) |
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- |
$1.21 @1k |
| MAX6319LH |
| Active High | | Active Low | | Push-Pull |
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No Watchdog |
- |
Manual Reset |
$1.21 @1k |
| MAX6319MH |
| Active High | | Active Low | | Bidirectional | | Push-Pull |
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No Watchdog |
- |
Manual Reset |
$1.21 @1k |
| MAX6320P |
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Input (WDI) |
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Manual Reset |
$1.20 @1k |
| MAX6321HP |
| Active High | | Active Low | | Open Drain | | Push-Pull |
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Input (WDI) |
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- |
$1.21 @1k |
| MAX6322HP |
| Active High | | Active Low | | Open Drain | | Push-Pull |
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No Watchdog |
- |
Manual Reset |
$1.21 @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
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-0496
Rev 10;
2011-11-10
This page last modified: 2011-11-10
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