Datasheet > MAX6316MUK25AY+T

MAX6316MUK25AY+T

更新时间： 2023-08-15 00:00:00

品牌	Logo	应用领域
美信 - MAXIM		光电二极管
页数	文件大小	规格书
14页	1516K
描述
Power Supply Management Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN

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MAX6316MUK25AY+T 数据手册

MAX6316–MAX6322

5-Pin μP Supervisory Circuits with

Watchdog and Manual Reset

MAX6316–MAX6322

RESET

(ALL EXCEPT MAX6317)

RESET

GENERATOR

RESET

(ALL EXCEPT

MAX6316/MAX6320P)

1.23V

52kΩ

(ALL EXCEPT

MAX6318/MAX6321)

WATCHDOG

TRANSITION

DETECTOR

WATCHDOG

TIMER

WDI

(ALL EXCEPT

MAX6319/MAX6322)

52kΩ

GND

Figure 1. Functional Diagram

within the watchdog timeout period (t ). Reset remains

Detailed Description

asserted for the specified reset active timeout period (t

)

A microprocessor’s (μP) reset input starts or restarts the

μP in a known state. The reset output of the MAX6316–

MAX6322 μP supervisory circuits interfaces with the

reset input of the μP, preventing code-execution errors

during power-up, power-down, and brownout condi-

tions (see the Typical Operating Circuit). The MAX6316/

MAX6317/MAX6318/MAX6320/MAX6321 are also capa-

ble of asserting a reset should the μP become stuck in

an infinite loop.

after V

rises above the reset threshold, after MR transi-

tions low to high, or after the watchdog timer asserts the

reset (MAX6316_/MAX6317H/MAX6318_H/MAX6320P/

MAX6321HP). After the reset active timeout period (t

)

expires, the reset output deasserts, and the watchdog

timer restarts from zero (Figure 2).

Reset Output

RST

The

MAX6316L/MAX6318LH/MAX6319LH

fea-

GND

ture an active-low reset output, while the MAX6317H

MAX6318_H/MAX6319_H/MAX6321HP/MAX6322HP

feature an active-high reset output. RESET is guaranteed

to be a logic low and RESET is guaranteed to be a logic

RESET

GND

high for V

down to 1V.

The MAX6316–MAX6322 assert reset when V

below the reset threshold (V

low (MAX6316_/MAX6317H/MAX6319_H/MAX6320P/

MAX6322HP only), or if the WDI pin is not serviced

), when MR is pulled

RST

Figure 2. Reset Timing Diagram

Maxim Integrated

│ 6

www.maximintegrated.com

1...3 4 567 8 9...14

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