Datasheet > CBM705

CBM705

更新时间： 2024-02-02 07:14:56

品牌	Logo	应用领域
芯佰微 - COREBAI		/
页数	文件大小	规格书
18页	2489K
描述
OPERATION INSTRUCTION

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数据手册

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CBM705 数据手册

CBM705/CBM706/CBM707/CBM708

OPERATION INSTRUCTION

FEATURES

GENERAL DESCRIPTION

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

Guaranteed RESET valid with V_CC= 1V

The CBM705, CBM706, CBM707, CBM708

microprocessor supervisory circuits are

190 μA quiescent current

suitable

for

monitoring

and

power

Precision supply voltage monitor

4.65 V (CBM705/CBM707)

supplies/batteries

activity.

microprocessor

4.40 V (CBM706/CBM708)

The

CBM705/

CBM706

provide



200 ms reset pulse width

power-supply monitoring circuitry that

generate a reset output during power-up,

power-down, and brownout conditions. The

reset output remains operational with V_CCas

low as 1V. Independent watchdog monitoring

circuitry is also provided. This is activated if

the watchdog input has not been toggled

within 1.60 sec.

Debounced TTL/CMOS manual reset

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input (MR)



Independent watchdog timer

(CBM705/CBM706)



1.60 sec timeout (CBM705/CBM706)

Active high reset output

(CBM707/CBM708)

In addition, there is a 1.25V threshold

detector to warn of power failures, to detect

low battery conditions, or to monitor an

additional power supply. An active low,



Voltage monitor for power fail or low

battery warning

Superior upgrade for ADM705 to

ADM708

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debounced manual reset input ( MR ) is also

included.

APPLICATIONS

The CBM705 and CBM706 are identical

except for the reset threshold monitor levels,

which are 4.65V and 4.40V, respectively.

The CBM707 and CBM708 provide a

similar functionality to the CBM705 and

CBM706 and only differ in that a watchdog

timer function is not available. Instead, an

active high reset output (RESET) is available as



Microprocessor systems

Computers

Controllers

Intelligent instruments

Critical microprocessor supply

monitoring

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well as the active low reset output ( RESET ).

The CBM707 and CBM708 are identical except

for the reset threshold monitor levels, which

are 4.65V and 4.40V, respectively.

All devices are available in narrow 8-lead

SOIC packages.

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