可编程逻辑控制器(PLC)



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Maxim > 方案 > 可编程逻辑控制器(PLC)

监控电路

数据资料

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标题/型号

关键优势

NV SRAM控制器，带有实时时钟和篡改检测
DS3605

具有安全、防篡改检测、加密存储功能的单芯片方案，发生篡改事件时擦除加密数据

QV PDF

超小型、可调节排序/监控电路
MAX6895, MAX6896, MAX6897, MAX6898, MAX6899

QV PDF

微处理器复位电路，提供电容可调的复位/看门狗延迟时间
MAX6746, MAX6747, MAX6748, MAX6749, MAX6750, MAX6751, MAX6752, MAX6753

QV PDF

低功耗、SC70/SOT封装、微处理器复位电路，可通过电容调节复位延迟时间
MAX6340, MAX6421, MAX6422, MAX6423, MAX6424, MAX6425, MAX6426

QV PDF

低功耗、单/双电压、微处理器复位电路，带有电容可调的复位延迟时间
MAX6412, MAX6413, MAX6414, MAX6415, MAX6416, MAX6417, MAX6418, MAX6419, MAX6420

微型、低功耗、单/双电压µP复位电路，可调复位延时提供更高的灵活性

QV PDF

SC70/µDFN封装、单/双路、低电压、低功耗、微处理器复位电路
MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390

QV PDF

±15kV ESD保护、单/双/八通道、CMOS开关去抖器
MAX6816, MAX6817, MAX6818

业内首款SOT开关去抖器，具有±15kV ESD保护和±25V故障容限

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. I_CC (µA)

Package

MAX6390

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

MicroDFN/6
SC-70/3
SC-70/4

See All Pushbutton Devices (17)

Key Specifications: Secure Supervisors
Part Number	Analog Voltages Monitored	Digital Inputs Monitored	External Memory Control	Random Number Generator	Over-Voltage Monitor	Battery Monitor	Operating Temp. Range (°C)
DS3605	4	1	Yes	Yes	No	Yes	-40 to +85
See All Secure Supervisors (7)

Key Specifications: Sequencers/Trackers

Part Number

Option

Interface

Number of Input Channels

Maximum Operating Voltage Range (V)

Features

Package

Operating Temp. Range (°C)

MAX6895

Sequence

Factory Fixed
R/C Adjustable

•	Enable Input

•	Overvoltage Detection

MicroDFN/6
SOT-23/6

-40 to +125

MAX6896

Sequence

Factory Fixed
R/C Adjustable

•	Enable Input

•	Overvoltage Detection

MicroDFN/6
SOT-23/6

-40 to +125

MAX6897

Sequence

Factory Fixed
R/C Adjustable

•	Enable Input

•	Overvoltage Detection

MicroDFN/6
SOT-23/6

-40 to +125

MAX6898

Sequence

Factory Fixed
R/C Adjustable

•	Enable Input

•	Overvoltage Detection

MicroDFN/6
SOT-23/6

-40 to +125

MAX6899

Sequence

Factory Fixed
R/C Adjustable

•	Enable Input

•	Overvoltage Detection

MicroDFN/6
SOT-23/6

-40 to +125

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. I_CC (µA)
MAX6895	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 300ms to 1s 85ms to 300ms <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input Overvoltage/Window Monitor	1.8	20
MAX6896	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 300ms to 1s 85ms to 300ms <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input Overvoltage/Window Monitor	1.8	20
MAX6897	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 300ms to 1s 85ms to 300ms <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input Overvoltage/Window Monitor	1.8	20
MAX6898	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 300ms to 1s 85ms to 300ms <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input Overvoltage/Window Monitor	1.8	20
MAX6899	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 300ms to 1s 85ms to 300ms <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input Overvoltage/Window Monitor	1.8	20
MAX6746	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 <1ms >1s Adjustable	Input (WDI) Cap Adjustable	1s to 2s <1s >2s Adjustable	Manual Reset	2	10
MAX6747	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 <1ms >1s Adjustable	Input (WDI) Cap Adjustable	1s to 2s <1s >2s Adjustable	Manual Reset	2	10
MAX6748	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 <1ms >1s Adjustable	Input (WDI) Cap Adjustable	1s to 2s <1s >2s Adjustable	Adjustable Reset Input	2	10
MAX6749	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 <1ms >1s Adjustable	Input (WDI) Cap Adjustable	1s to 2s <1s >2s Adjustable	Adjustable Reset Input	2	10
MAX6752	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 <1ms >1s Adjustable	Input (WDI) Cap Adjustable Windowed	1s to 2s <1s >2s Adjustable	-	2	10
MAX6753	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 <1ms >1s Adjustable	Input (WDI) Cap Adjustable Windowed	1s to 2s <1s >2s Adjustable	-	2	10
MAX6340	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6421	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6422	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6423	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6424	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6425	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6426	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 <1ms >1s Adjustable	No Watchdog	-	-	1.5	2.5
MAX6412	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 <1ms >1s Adjustable	No Watchdog	-	Manual Reset	1.5	2.5
MAX6413	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 <1ms >1s Adjustable	No Watchdog	-	Manual Reset	1.5	2.5
MAX6414	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 <1ms >1s Adjustable	No Watchdog	-	Manual Reset	1.5	2.5
MAX6415	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 <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input	4	2.5
MAX6416	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 <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input	4	2.5
MAX6417	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 <1ms >1s Adjustable	No Watchdog	-	Adjustable Reset Input	4	2.5
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
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
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
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
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
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
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

Nom. Watchdog Timeout Range

Supervisor Features

Reset Thresh. Acc. (% @+25°C)

Max. I_CC (µA)

MAX6750

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
<1ms
>1s
Adjustable

Input (WDI)
Cap Adjustable

1s to 2s
<1s
>2s
Adjustable

Adjustable Reset Input

MAX6751

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
<1ms
>1s
Adjustable

Input (WDI)
Cap Adjustable

1s to 2s
<1s
>2s
Adjustable

Adjustable Reset Input

MAX6418

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
<1ms
>1s
Adjustable

No Watchdog

Adjustable Reset Input

1.5

2.5

MAX6419

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
<1ms
>1s
Adjustable

No Watchdog

Adjustable Reset Input

1.5

2.5

MAX6420

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
<1ms
>1s
Adjustable

No Watchdog

Adjustable Reset Input

1.5

2.5

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

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

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

See All Supervisors (2 Monitored Voltages) (70)

Key Specifications: Switch Debouncer/Protectors

Part Number

Number of Switch Inputs

Edge Triggered

Debounce Duration (ms)

Output Polarity

Output Type

Max. Switch Input

ESD Protection (±kV)

Max. Supply Current (µA)

Package

MAX6816

Both Edges

15 to 85

Active High

Push-Pull

±25

SOT-143/4

MAX6817

Both Edges

15 to 85

Active High

Push-Pull

±25

SOT-23/6

MAX6818

Both Edges

15 to 85

Active High

Push-Pull

±25

SSOP/20

See All Switch Debouncer/Protectors (6)