ZXCM210LFTA Diodes Zetex, ZXCM210LFTA Datasheet

ZXCM210LFTA

Manufacturer Part Number

ZXCM210LFTA

Description

IC CMOS MICRO REST 4.63V SOT23-3

Manufacturer

Diodes Zetex

Type

Simple Reset/Power-On Resetr

Datasheet

1.ZXCM209LFTA.pdf (8 pages)

Specifications of ZXCM210LFTA

Number Of Voltages Monitored

Output

Push-Pull, Totem Pole

Reset

Active High

Reset Timeout

140 ms Minimum

Voltage - Threshold

4.63V

Operating Temperature

-55°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

SOT-23-3, TO-236-3, Micro3™, SSD3, SST3

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Other names

ZXCM210LFTR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

ZXCM210LFTA

Manufacturer:

ZETEX

Quantity:

20 000

Current page: 1 of 8
Download datasheet (328Kb)

ISSUE 3 - FEBRUARY 2001

VERY LOW POWER MICROPROCESSOR RESET DEVICES

DESCRIPTION

The ZXCM209/210 are three terminal supervisory

circuits used to monitor the power supplies in

microprocessor and digital systems. They provide a

high performance economical solution when used

with 5V, 3V or lower powered circuits. Reset

thresholds suitable for operation with a variety of

supply voltages are available.

These devices provide a reset signal whenever the

supply voltage falls below a preset threshold, keeping

it asserted for a minimum delay period of 140ms 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.

The reset comparator has in built hysteresis to prevent

erratic operation and is designed to ignore supply

transients. Low supply current (typically 2µA) makes

the ZXCM209/210 devices ideal for use in portable

equipment. They are available in a 3-pin SOT23

surface mount package with an industry standard

pinout.

FEATURES

Enhanced alternative to MAX809/810 and similar

parts

Precision monitoring of 5V, 3.3V, 3V power

supply voltages

1% threshold tolerance

2µA typical supply current

140ms minimum power on reset pulse width

Alternative minimum pulse widths available,

contact your local sales office for availability

RESET LOW Output (ZXCM209)

RESET HIGH Output (ZXCM210)

Power supply transient immunity

No latch up

No external components

3-Pin SOT23 package

APPLICATION CIRCUIT

APPLICATIONS

Computer systems

Controllers

Instrumentation

Microprocessor power monitoring

Microcontroller power monitoring

Power supplies

Portable/Battery-powered equipment

Automotive

ZXCM

Gnd

Output

Reset

ZXCM209

ZXCM210

Reset

Input

Micro

Gnd

Related parts for ZXCM210LFTA

ZXCM210LFTA Summary of contents

Page 1

VERY LOW POWER MICROPROCESSOR RESET DEVICES DESCRIPTION The ZXCM209/210 are three terminal supervisory circuits used to monitor the power supplies in microprocessor and digital systems. They provide a high performance economical solution when used with 5V lower powered ...

Page 2

ZXCM209 ZXCM210 ABSOLUTE MAXIMUM RATINGS Terminal Voltage with respect RESET, RESET Input Current Output Current Rate of Rise Continuous Power Dissipation Operating Temperature Range Storage Temperature Range Stresses beyond those listed under ...

Page 3

ELECTRICAL CHARACTERISTICS ZXCM209 TEST CONDITIONS (unless otherwise stated) V SYMBOL PARAMETER V Reset Output Voltage OL Low V Reset Output Voltage OH High ELECTRICAL CHARACTERISTICS ZXCM210 TEST CONDITIONS (unless otherwise stated) V SYMBOL PARAMETER V Reset Output Voltage OL Low ...

Page 4

ZXCM209 ZXCM210 TYPICAL CHARACTERISTICS ISSUE 3 - FEBUARY 2001 4 ...

Page 5

APPLICATIONS INFORMATION Negative going V transients CC The ZXCM209/210 are good degree, immune to short duration negative going supply transients. Under certain circumstances very brief transients are allowed without inappropriate false triggering of the reset circuit. The response ...

Page 6

ZXCM209 ZXCM210 Interfacing to µP’s with bidirectional reset I/O The ZXCM series can be used with microprocessors havng bidirectional reset pins, such as Motorola 68HC11 series. The addition of a 4.7k resistor between the ZXCM reset output and the processor ...

Page 7

ORDERING INFORMATION PART NUMBER TEMPERATURE RANGE ZXCM209xF -55 to 125°C ZXCM210LF -55 to 125°C x=Insert appropriate threshold voltage code. ZXCM209 Threshold voltage codes PART MARK THRESHOLD CODE M22 L M23 M M24 J M25 T M26 S M27 R ZXCM210 ...

Page 8

ZXCM209 ZXCM210 PACKAGE DIMENSIONS DIM Millimetres Min Max A 2.67 3.05 B 1.20 1.40 C – 1.10 D 0.37 0.53 F 0.085 0.15 G NOM 1.9 K 0.01 0.10 L 2.10 2.50 N NOM 0.95 Zetex plc. Fields New Road, ...

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