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Maxim > Solutions > Cordless Phones

Low-Power µP Supervisors in Small Packages

DATA SHEETS
Display Title / Parts Key Advantages
QV  PDF Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer
MAX6854, MAX6855, MAX6856, MAX6858, MAX6860, MAX6861, MAX6862, MAX6863, MAX6864, MAX6865, MAX6866, MAX6867, MAX6868, MAX6869

Nanopower µP Supervisory Circuits with Manual Reset and Watchdog Timer Ideal for Portable Applications
QV  PDF Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset
MAX6467, MAX6468
QV  PDF Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits
MAX6736, MAX6737, MAX6738, MAX6739, MAX6740, MAX6741, MAX6742, MAX6743, MAX6744, MAX6745

Low-Power, Dual-/Triple-Voltage SC70 µP Supervisory Circuits are Ideal for Portable Equipment
QV  PDF Ultra-Low-Voltage SC70 Voltage Detectors and µP Reset Circuits
MAX6832, MAX6833, MAX6834, MAX6835, MAX6836, MAX6837, MAX6838, MAX6839, MAX6840
QV  PDF µP Supervisory Circuits in 4-Bump (2 x 2) Chip-Scale Package
MAX6400, MAX6401, MAX6402, MAX6403, MAX6404, MAX6405

Low-Power Microprocessor Supervisor in 4-Bump Chip Scale Package
QV  PDF SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits
MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390
QV  PDF 3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
MAX6375, MAX6376, MAX6377, MAX6378, MAX6379, MAX6380

Industry's Smallest, Lowest-Power Voltage Detectors
QV  PDF 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6326, MAX6327, MAX6328, MAX6346, MAX6347, MAX6348

Industry's Lowest-Power Reset IC Consumes Only 500nA with No External Components Required



Key Specifications:   Pushbutton Devices
Part Number Number of Monitored Voltages Manual Reset Feature MR1 Setup Time Reset Threshold Range (V) Active-Low Reset Output Min. Reset Timeout Range Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Industry Qualified Operating Temp. Range (°C)
MAX6390  1 Single Soft/Hard Reset Output 1µs 1.2 to 1.79
1.8 to 2.49
2.5 to 3.29
3.3 to 4.99 		Open Drain >1s 1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6467  1 One-Shot 1µs 1.2 to 1.79
1.8 to 2.49
2.5 to 3.29
3.3 to 4.99 		Open Drain 85ms to 300ms
>1s 		1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6468  1 One-Shot 1µs 1.2 to 1.79
1.8 to 2.49
2.5 to 3.29
3.3 to 4.99 		Push-Pull 85ms to 300ms
>1s 		1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
See All Pushbutton Devices (17)

Key Specifications:   Sequencers/Trackers
Part Number Option Interface Number of Input Channels Maximum Operating Voltage Range (V) Features Operating Temp. Range (°C)
MAX6741  Sequence Factory Fixed
R/C Adjustable 		2 <6
•Reset Output
 -40 to +85
0 to +70
MAX6744  Sequence Factory Fixed
R/C Adjustable 		2 <6
•Reset Output
 -40 to +85
0 to +70
See All Sequencers/Trackers (52)

Key Specifications:   Supervisors (1 Monitored Voltage)
Part Number Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Nom. Watchdog Timeout Range Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Industry Qualified Operating Temp. Range (°C)
MAX6326  1.8 to 2.5
2.5 to 3.3 		Push-Pull  -  85ms to 300ms No Watchdog  -   -  1.5 1  -  -40 to +85
0 to +70
MAX6327  1.8 to 2.5
2.5 to 3.3 		 -  Push-Pull 85ms to 300ms No Watchdog  -   -  1.5 1  -  -40 to +85
0 to +70
MAX6328  1.8 to 2.5
2.5 to 3.3 		Open Drain  -  85ms to 300ms No Watchdog  -   -  1.5 1  -  -40 to +85
0 to +70
MAX6346  3.3 to 5.5 Push-Pull  -  85ms to 300ms No Watchdog  -   -  1.5 1.75  -  -40 to +85
0 to +70
MAX6347  3.3 to 5.5  -  Push-Pull 85ms to 300ms No Watchdog  -   -  1.5 1.75  -  -40 to +85
0 to +70
MAX6348  3.3 to 5.5 Open Drain  -  85ms to 300ms No Watchdog  -   -  1.5 1.75  -  -40 to +85
0 to +70
MAX6375  1.8 to 2.5
2.5 to 3.3 		Open Drain
Push-Pull 		Push-Pull <1ms No Watchdog  -   -  2.5 0.5  -  -40 to +85
MAX6376  1.8 to 2.5
2.5 to 3.3 		Open Drain
Push-Pull 		Push-Pull <1ms No Watchdog  -   -  2.5 0.5  -   - 
MAX6377  1.8 to 2.5
2.5 to 3.3 		Open Drain  -  <1ms No Watchdog  -   -  2.5 0.5  -  -40 to +85
MAX6378  2.5 to 3.3
3.3 to 5.5 		Open Drain  -  <1ms No Watchdog  -   -  2.5 0.5  -  -40 to +85
MAX6379  2.5 to 3.3
3.3 to 5.5 		Open Drain Push-Pull <1ms No Watchdog  -   -  2.5 0.5  -  -40 to +85
MAX6380  2.5 to 3.3
3.3 to 5.5 		Open Drain  -  <1ms No Watchdog  -   -  2.5 0.5  -  -40 to +85
MAX6381  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -   -  1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6382  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -   -  1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6383  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -   -  1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6384  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -  Manual Reset 1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6385  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -  Manual Reset 1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6386  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -  Manual Reset 1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6400  1.8 to 2.5
2.5 to 3.3 		Push-Pull  -  85ms to 300ms No Watchdog  -  Manual Reset  -  1  -  -40 to +85
0 to +70
MAX6401  1.8 to 2.5
2.5 to 3.3 		 -  Push-Pull 85ms to 300ms No Watchdog  -  Manual Reset  -  1  -  -40 to +85
0 to +70
MAX6402  1.8 to 2.5
2.5 to 3.3 		Open Drain  -  85ms to 300ms No Watchdog  -  Manual Reset  -  1  -  -40 to +85
0 to +70
MAX6403  3.3 to 5.5 Push-Pull  -  85ms to 300ms No Watchdog  -  Manual Reset  -  1  -  -40 to +85
0 to +70
MAX6404  3.3 to 5.5  -  Push-Pull 85ms to 300ms No Watchdog  -  Manual Reset  -  1  -  -40 to +85
0 to +70
MAX6405  3.3 to 5.5 Open Drain  -  85ms to 300ms No Watchdog  -  Manual Reset  -  1  -  -40 to +85
0 to +70
MAX6742  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  85ms to 300ms
>1s 		No Watchdog  -  Manual Reset
Power Fail Comparator 		3 10  -  -40 to +85
0 to +70
MAX6745  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  85ms to 300ms
>1s 		No Watchdog  -  Power Fail Comparator 3 10  -  -40 to +85
0 to +70
MAX6832  0 to 1.2
1.2 to 1.8 		Push-Pull  -  15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -   -  1.5 13  -  -40 to +85
0 to +70
MAX6833  0 to 1.2
1.2 to 1.8 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -   -  1.5 13  -  -40 to +85
0 to +70
MAX6834  0 to 1.2
1.2 to 1.8 		Open Drain  -  15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -   -  1.5 13  -  -40 to +85
0 to +70
MAX6835  0 to 1.2
1.2 to 1.8 		Push-Pull  -  15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -  Manual Reset 2.5 13  -  -40 to +85
0 to +70
MAX6836  0 to 1.2
1.2 to 1.8 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -  Manual Reset 1.5 13  -  -40 to +85
0 to +70
MAX6837  0 to 1.2
1.2 to 1.8 		Open Drain  -  15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -  Manual Reset 1.5 13  -  -40 to +85
0 to +70
MAX6838  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -  Adjustable Reset Input 1.5 13  -  -40 to +85
0 to +70
MAX6839  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -  Adjustable Reset Input 2.5 13  -  -40 to +85
0 to +70
MAX6840  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
85ms to 300ms
<1ms
>1s 		No Watchdog  -  Adjustable Reset Input 2.5 13  -  -40 to +85
0 to +70
MAX6854  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		No Watchdog  -  Manual Reset 2.5 1  -  -40 to +85
MAX6855  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		No Watchdog  -  Manual Reset 2.5 1  -  -40 to +85
MAX6856  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		No Watchdog  -  Manual Reset 2.5 1  -  -40 to +85
MAX6858  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		No Watchdog  -   -  2.5 1  -  -40 to +85
MAX6860  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		No Watchdog  -   -  2.5 1  -  -40 to +85
MAX6861  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  1ms to 15ms
85ms to 300ms 		No Watchdog  -  Manual Reset 2.5 1  -  -40 to +85
MAX6862  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 1ms to 15ms
85ms to 300ms 		No Watchdog  -  Manual Reset 2.5 1  -  -40 to +85
MAX6863  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  1ms to 15ms
85ms to 300ms 		No Watchdog  -  Manual Reset 2.5 1  -  -40 to +85
MAX6864  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		Input (WDI) >2s Manual Reset 2.5 1  -  -40 to +85
MAX6865  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		Input (WDI) >2s Manual Reset 2.5 1  -  -40 to +85
MAX6866  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		Input (WDI) >2s Manual Reset 2.5 1  -  -40 to +85
MAX6867  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		Input (WDI) >2s Manual Reset 2.5 1  -  -40 to +85
MAX6868  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		Input (WDI) >2s Manual Reset 2.5 1  -  -40 to +85
MAX6869  1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms 		Input (WDI) >2s Manual Reset 2.5 1  -  -40 to +85
See All Supervisors (1 Monitored Voltage) (268)

Key Specifications:   Supervisors (2 Monitored Voltages)
Part Number Interface Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Industry Qualified Operating Temp. Range (°C)
MAX6741  Factory Fixed
R/C Adjustable 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  85ms to 300ms
>1s 		No Watchdog Manual Reset 3 12  -  -40 to +85
0 to +70
MAX6744  Factory Fixed
R/C Adjustable 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  85ms to 300ms
>1s 		No Watchdog  -  3 12  -  -40 to +85
0 to +70
MAX6387  Factory Fixed
R/C Adjustable 		1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input
Manual Reset 		1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6388  Factory Fixed
R/C Adjustable 		1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input 1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6389  Factory Fixed
R/C Adjustable 		1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input 1.5 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6736  Factory Fixed 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  85ms to 300ms
>1s 		No Watchdog Manual Reset 3 12  -  -40 to +85
0 to +70
MAX6737  Factory Fixed 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  85ms to 300ms
>1s 		No Watchdog Manual Reset 3 12  -  -40 to +85
0 to +70
MAX6738  Factory Fixed
R/C Adjustable 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input
Manual Reset 		3 10  -  -40 to +85
0 to +70
MAX6739  Factory Fixed
R/C Adjustable 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input
Manual Reset 		3 10  -  -40 to +85
0 to +70
See All Supervisors (2 Monitored Voltages) (70)

Key Specifications:   Supervisors (3 Monitored Voltages)
Part Number Interface Reset Threshold Range (V) Active-Low Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Operating Temp. Range (°C)
MAX6740  Factory Fixed
R/C Adjustable 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain 85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input
Manual Reset 		3 12 -40 to +85
0 to +70
MAX6743  Factory Fixed
R/C Adjustable 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull 85ms to 300ms
>1s 		No Watchdog Adjustable Reset Input 3 12 -40 to +85
0 to +70
See All Supervisors (3 Monitored Voltages) (21)

Key Specifications:   Switch Debouncer/Protectors
Part Number Number of Switch Inputs Edge Triggered Functions Debounce Duration (ms) Output Polarity Output Type Max. Switch Input ESD Protection (±kV) Max. Supply Current (µA) Industry Qualified Operating Temp. Range (°C)
MAX6467  1 Falling Edge
•Non-Retriggerable One-Shot
 85 to 300 Active Low Open-Drain +5.5 2 13 Automotive - General -40 to +125
-40 to +85
0 to +70
MAX6468  1 Falling Edge
•Non-Retriggerable One-Shot
 85 to 300 Active Low Push-Pull +5.5 2 13 Automotive - General -40 to +125
-40 to +85
0 to +70
See All Switch Debouncer/Protectors (6)


         


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