DS1831C 查看數據表（PDF） - Maxim Integrated

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DS1831C

3.3V/2.5V Multisupply MicroMonitor

Maxim Integrated 

DS1831C/D/E

reset, the 3.3V reset or for all reset outputs by the master pushbutton. The DS1831D replaces one

reference comparator and the master pushbutton with watchdog and the DS1831E replaces the 3.3V

PBRST with a last reset status output.

TOL and TD inputs allow user configuration of the DS1831 for multiple applications. The TOL inputs

configure the tolerance for the specified output and the TD inputs configure the reset time delays.

PIN DESCRIPTION

IN2.5V

2.5V Power Supply Input

RST 2.5V

TOL2.5V

TD2.5V

PBRST 2.5V

IN1

IN2

ST

GND

2.5V Reset Open Drain

Output

Selects 2.5V Input

Tolerance

Selects 2.5V Reset Time

Delay

2.5V Reset Pushbutton

Sense Input 1

Sense Input 2 (DS1831C/E)

Watchdog Strobe Inputs

(DS1831D)

Ground

MPBRST

TDWD

NMI2

WDS

NMI1

PBRST 3.3V

PBST

TD3.3V

TOL3.3V

RST 3.3V

Master Pushbutton (DS1831C/E)

Watchdog Time Delay Select

(DS1831D)

Non-maskable Interrupt 2 (DS1831C/E)

Watchdog Status Output (DS1831D)

Non-maskable Interrupt 1

3.3V Reset Pushbutton (DS1831C/E)

Pushbutton Status Output (DS1831E)

Select 3.3V Reset Time Delay

Selects 3.3V Input Tolerance

3.3V Reset Open Drain Output

IN3.3V

3.3V Power Supply Input

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