Datasheet > ZXCM209LFTA

ZXCM209LFTA

更新时间： 2024-09-25 23:36:07

品牌	Logo	应用领域
其他 - ETC		监控
页数	文件大小	规格书
8页	313K
描述
IC-SM-SUPERVISORY CIRCUIT

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中文翻译

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数据手册

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ZXCM209LFTA 数据手册

ZXCM209

ZXCM210

VERY LOW POWER MICROPROCESSOR RESET DEVICES

DESCRIPTION

APPLICATIONS

The ZXCM209/210 are three term inal supervisory

circuits used to m onitor the power supplies in

m icroprocessor and digital system s. They provide a

high perform ance econom ical solution when used

w ith 5V, 3V o r lo w e r p o w e re d circu its . Re s e t

thresholds suitable for operation with a variety of

supply voltages are available.

•

Com puter system s

Controllers

Instrum entation

Microprocessor power m onitoring

Microcontroller power m onitoring

Power supplies

These devices provide a reset signal whenever the

supply voltage falls below a preset threshold, keeping

it asserted for a m inim um delay period of 140m s after

the supply has risen above the reset level. The

ZXCM209 has an active-low RESET output (which is

guaranteed to be in the correct state for supplies down

to 1V), while the ZXCM210 has an active-high RESET

output.

Portable/Battery-powered equipm ent

Autom otive

APPLICATION CIRCUIT

v_cc

The reset com parator has in built hysteresis to prevent

erratic operation and is designed to ignore supply

transients. Low supply current (typically 2µA) m akes

the ZXCM209/210 devices ideal for use in portable

equipm ent. They are available in a 3-pin SOT23

surface m ount package with an industry standard

pinout.

v_cc

ZXCM

Micro

Reset

Output

Reset

Input

FEATURES

•

Enhanced alternative to MAX809/810 and sim ilar

parts

Gnd

•

Precision m onitoring of 5V, 3.3V, 3V power

supply voltages

•

1% threshold tolerance

2µA typical supply current

140m s m inim um power on reset pulse width

Alternative m inim um pulse widths available,

contact your local sales office for availability

•

RESET LOW Output (ZXCM209)

RESET HIGH Output (ZXCM210)

Power supply transient im m unity

No latch up

No external com ponents

•

3-Pin SOT23 package

ISSUE 2 - MARCH 2000

12 3 4 5 6 7 8

中文翻译

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