MAX698 Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

MAX698

Low-Cost, Power-On Reset and Watchdog Controllers

Maxim Integrated 

PIN

SO

1, 4, 9

2, 3

5–8, 10–14

PDIP

3, 4, 8

1, 2

5, 6

10

6

14

—

15

7

16

—

Low-Cost, Power-On Reset

and Watchdog Controllers

Pin Description

NAME

GND

VCC

N.C.

WDI (MAX699 Only)

WDO (MAX699 Only)

RESET

RESET

FUNCTION

Chip Power Ground

+5V Sense Input and MAX698/MAX699 Chip Power

No Connection

(MAX699 Only.) A three-level input. If WDI remains high or low for

more than the watchdog timeout period, RESET pulses low (WDO

also goes low on the MAX699 SO package). If WDI is unconnected,

the watchdog circuit is disabled.

(MAX699 Only.) Goes low when WDI remains high or low for more

than the watchdog timeout period. WDO is set high at the next WDI

transition. If WDI is unconnected or at midsupply, WDO remains high.

WDO also remains high when VCC falls below 4.4V.

Goes low when VCC falls below internally set threshold (see the

Electrical Characteristics table).

Goes high when VCC falls below internally set threshold.

WDI*

VCC

WATCHDOG

TIMER

4.65V

RESET

TIMER

VCC

POWER-ON

RESET

MAX698

MAX699

WDO*

RESET

RESET*

Figure 1. Block Diagram

*WDI ON MAX699 ONLY

RESET ON SO PACKAGE ONLY

GND

WDO ON SO MAX699 ONLY

_______________________________________________________________________________________ 3

Share Link: