MAX6333UR20D2-T Maxim Integrated, MAX6333UR20D2-T Datasheet

MAX6333UR20D2-T

Manufacturer Part Number

MAX6333UR20D2-T

Description

Supervisory Circuits

Manufacturer

Maxim Integrated

Series

MAX6332, MAX6333, MAX6334r

Datasheet

1.MAX6332UR17D1-T.pdf (6 pages)

Specifications of MAX6333UR20D2-T

Number Of Voltages Monitored

Monitored Voltage

1.8 V, 2.5 V

Undervoltage Threshold

1.96 V

Overvoltage Threshold

2.04 V

Output Type

Active Low, Push-Pull

Manual Reset

Not Resettable

Watchdog

No Watchdog

Battery Backup Switching

No Backup

Power-up Reset Delay (typ)

40 ms

Supply Voltage - Max

5.5 V

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Package / Case

SOT-23

Chip Enable Signals

Maximum Power Dissipation

320 mW

Minimum Operating Temperature

- 40 C

Power Fail Detection

Supply Current (typ)

3.3 uA

Supply Voltage - Min

0.7 V

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The MAX6332/MAX6333/MAX6334 microprocessor (µP)

supervisory circuits monitor the power supplies in 1.8V

to 3.3V µP and digital systems. They increase circuit

reliability and reduce cost by eliminating external com-

ponents and adjustments.

These devices perform a single function: they assert a

reset signal whenever the V

below a preset threshold, keeping it asserted for a preset

timeout period after V

threshold. The only difference among the three devices

is their output. The MAX6333 (push/pull) and MAX6334

(open-drain) have an active-low RESET output, while the

MAX6332 (push/pull) has an active-high RESET output.

The MAX6332/MAX6333 are guaranteed to be in the cor-

rect state for V

teed to be in the correct state for V

The reset comparator in these ICs is designed to ignore

fast transients on V

trimmable between 1.6V and 2.5V, in approximately

100mV increments. There are 15 standard versions

available (2,500 piece minimum-order quantity); con-

tact the factory for availability of nonstandard versions

(10,000 piece minimum-order quantity). For space-criti-

cal applications, the MAX6332/MAX6333/MAX6334

come packaged in a 3-pin SOT23.

19-1411; Rev 3; 6/12

Typical Operating Circuit and Pin Configuration appear

at end of data sheet.

Selector Guide appears at end of data sheet.

Pentium is a registered trademark of Intel Corp.

For pricing, delivery, and ordering information, please contact Maxim Direct

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

Pentium

Computers

Controllers

Intelligent Instruments

Critical µP/µC Power Monitoring

Portable/Battery-Powered Equipment

Automotive

II Computers

down to 0.7V. The MAX6334 is guaran-

. Reset thresholds are factory-

General Description

3-Pin, Ultra-Low-Voltage, Low-Power

has risen above the reset

supply voltage declines

Applications

down to 1.0V.

o Ultra-Low 0.7V Operating Supply Voltage

o Low 3.3µA Supply Current

o Precision Monitoring of 1.8V and 2.5V Power-

o Reset Thresholds Available from 1.6V to 2.5V,

o Fully Specified over Temperature

o Three Power-On Reset Pulse Widths Available

o Low Cost

o Three Available Output Structures: Push/Pull

o Guaranteed RESET/RESET Valid to V

o Power-Supply Transient Immunity

o No External Components

o 3-Pin SOT23 Package

o Pin Compatible with MAX809/MAX810 and

* These devices are available in factory-set V

olds from 1.6V to 2.5V, in approximately 0.1V increments.

Choose the desired reset threshold suffix from Table 1 and

insert it in the blanks following “UR” in the part number.

Factory-programmed reset timeout periods are also available.

Insert the number corresponding to the desired nominal reset

timeout period (1 = 1ms min, 2 = 20ms min, 3 = 100ms min) in

the blank following “D” in the part number. There are 15 stan-

dard versions with a required order increment of 2500 pieces.

Sample stock is generally held on the standard versions only

(see Selector Guide). Contact the factory for availability of non-

standard versions (required order increment is 10,000 pieces).

All devices available in tape-and-reel only.

Devices are available in both leaded and lead-free packaging.

Specify lead-free by replacing “-T” with “+T” when ordering.

/V denotes an automotive qualified part.

MAX6332UR__D_-T

MAX6333UR__D_-T

MAX6333UR__D_/V-T

MAX6334UR__D_-T

Supply Voltages

in Approximately 100mV Increments

(1ms min, 20ms min, 100ms min)

RESET, Push/Pull RESET, Open-Drain RESET

(MAX6332/MAX6333)

MAX6326/MAX6327/MAX6328

PART

µP Reset Circuits

Ordering Information

-40°C to +125°C

TEMP RANGE

PIN-PACKAGE

3 SOT23

Features

reset thresh-

= 0.7V

Related parts for MAX6333UR20D2-T

MAX6333UR20D2-T Summary of contents

Page 1

... Rev 3; 6/12 3-Pin, Ultra-Low-Voltage, Low-Power General Description The MAX6332/MAX6333/MAX6334 microprocessor (µP) supervisory circuits monitor the power supplies in 1.8V to 3.3V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external com- ponents and adjustments. These devices perform a single function: they assert a ...

Page 2

Ultra-Low-Voltage, Low-Power µP Reset Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND) V ......................................................................-0.3V to +6V CC Push/Pull RESET, RESET .......................-0. Open-Drain RESET ..............................................-0.3V to +6V Input Current (V ) .............................................................20mA CC Output Current (RESET, ...

Page 3

Ultra-Low-Voltage, Low-Power (Reset not asserted +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 4.0 3.8 3.6 3.4 3 2. 1.8V 2.8 CC 2.6 2.4 2.2 RESET NOT ASSERTED 2.0 -60 ...

Page 4

Ultra-Low-Voltage, Low-Power µP Reset Circuits ______________Applications Information Interfacing to µPs with Bidirectional Since the RESET output on the MAX6334 is open-drain, this device interfaces easily with µPs that have bidirec- tional reset pins, such as the Motorola 68HC11. Connecting ...

Page 5

Ultra-Low-Voltage, Low-Power Pin Configuration TOP VIEW 1 GND MAX6332 MAX6333 MAX6334 RESET (RESET) 2 SOT23 ARE FOR MAX6332 PART OUTPUT STAGE MAX6332UR23D3-T Push/Pull RESET MAX6332UR22D3-T Push/Pull RESET MAX6332UR20D3-T Push/Pull RESET MAX6332UR18D3-T Push/Pull RESET MAX6332UR16D3-T Push/Pull RESET Push/Pull ...

Page 6

... Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 6 ________________Maxim Integrated Products, Inc. 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2012 Maxim Integrated Products Revision History DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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