MAX706AT

更新时间： 2024-09-28 04:41:47

品牌	Logo	应用领域
美信 - MAXIM		监控
页数	文件大小	规格书
15页	466K
描述
+3V Voltage Monitoring, Low-Cost uP Supervisory Circuits

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MAX706AT 数据手册

19-0099; Rev 5; 4/06

+3V Voltage Monitoring, Low-Cost µP

Supervisory Circuits

General Description

Features

The MAX706P/R/S/T, MAX706AP/AR/AS/AT, and

MAX708R/S/T microprocessor (µP) supervisory circuits

reduce the complexity and number of components

required to monitor +3V power-supply levels in +3V to

+5V µP systems. These devices significantly improve

system reliability and accuracy compared to separate

ICs or discrete components.

♦ µMAX Package, Small 8-Pin SO

♦ Precision Supply-Voltage Monitors

2.63V (MAX706P/R, MAX706AP/AR, and MAX708R)

2.93V (MAX706S, MAX706AS, and MAX708S)

3.08V (MAX706T, MAX706AT, and MAX708T)

♦ 200ms Reset Time Delay

The MAX706P/R/S/T and MAX706AP/AR/AS/AT supervi-

sory circuits provide the following four functions:

♦ Debounced TTL/CMOS-Compatible Manual Reset

Input

1) A reset output during power-up, power-down, and

brownout conditions.

♦ 100µA Quiescent Current

2) An independent watchdog output that goes low if the

watchdog input has not been toggled within 1.6s.

♦ WDI Disable Feature (MAX706AP/AR/AS/AT)

♦ Watchdog Timer: 1.6s Timeout

3) A 1.25V threshold detector for power-fail warning,

low-battery detection, or for monitoring a power

supply other than the main supply.

♦ Reset Output Signal:

Active-High Only (MAX706P, MAX706AP)

Active-Low Only (MAX706R/S/T, MAX706AR/AS/AT)

Active-High and Active-Low (MAX708R/S/T)

4) An active-low, manual-reset input.

The only difference between the MAX706R/AR,

MAX706S/AS, and MAX706T/AT is the reset-threshold

voltage levels, which are 2.63V, 2.93V, and 3.08V,

respectively. All have active-low reset output signals.

The MAX706P/AP are identical to the MAX706R/AR,

except the reset output signal is active-high. The watch-

dog timer function for the MAX706AP/AR/AS/AT dis-

ables when the WDI input is left open or connected to a

high-impedance state of a low-leakage tri-state output.

♦ Voltage Monitor for Power-Fail or Low-Battery

Warning

♦ 8-Pin Surface-Mount Package

♦ Guaranteed RESET Assertion to V

= 1V

Ordering Information

TEMP

RANGE

PIN-

PACKAGE

PKG

CODE

PART†

The MAX708R/S/T provide the same functions as the

MAX706R/S/T and MAX706AR/AS/AT except they do

not have a watchdog timer. Instead, they provide both

RESET and RESET outputs. As with the MAX706,

devices with R, S, and T suffixes have reset thresholds

of 2.63V, 2.93V, and 3.08V, respectively.

MAX706PCPA

MAX706PCSA

MAX706PCUA

MAX706PEPA

0°C to +70°C

-40°C to +85°C

8 PDIP

8 SO

P8-1

S8-2

U8-1

P8-1

8 µMAX

8 PDIP

†

SO, µMAX, and PDIP packages are available in lead-free.

These devices are available in 8-pin SO, DIP, and

µMAX^®packages and are fully specified over the oper-

ating temperature range.

Ordering Information continued at end of data sheet.

Pin Configurations appear at end of data sheet.

Typical Operating Circuits

Applications

UNREGULATED

Battery-Powered Equipment

Portable Instruments

Computers

DC-DC

CONVERTER

+3V/+3.3V

MAX639

µP

Controllers

MAX706R/S/T

MAX706AR/AS/AT

Intelligent Instruments

Critical µP Power Monitoring

RESET

I/O LINE

WDI

WDO

PFO

PFI

NMI

PUSHBUTTON

SWITCH

INTERRUPT

GND

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Typical Operating Circuits continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...15

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与MAX706AT相关器件

型号	品牌	获取价格	描述	数据表
MAX706ATEPA	MAXIM	获取价格	+3V Voltage Monitoring, Low-Cost uP Supervisory Circuits
MAX706ATESA	MAXIM	获取价格	+3V Voltage Monitoring, Low-Cost uP Supervisory Circuits
MAX706ATESA+	MAXIM	获取价格	Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, LEAD FREE, MS-
MAX706ATESA+T	MAXIM	获取价格	暂无描述
MAX706ATEUA	MAXIM	获取价格	+3V Voltage Monitoring, Low-Cost uP Supervisory Circuits
MAX706ATEUA+T	MAXIM	获取价格	暂无描述
MAX706C	ARTSCHIP	获取价格	Low-Cost, pervisory Circuit
MAX706C/D	MAXIM	获取价格	Low-Cost, uP Supervisory Circuits
MAX706CPA	MAXIM	获取价格	Low-Cost, uP Supervisory Circuits
MAX706CPA	ROCHESTER	获取价格	2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8, PLASTIC, DIP-8

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