CAT1161WI-25TE13 datasheet, PDF

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CAT1161WI-25TE13: DescriptionPower Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, LEAD FREE AND HALOGEN FREE, SOIC-8; CategoryPower/power management The power supply circuit; File Size434KB，14 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/; Environmental Compliance

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CAT1161WI-25TE13 Overview

Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, 0.150 INCH, LEAD FREE AND HALOGEN FREE, SOIC-8

CAT1161WI-25TE13 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Catalyst
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e3
length	4.9 mm
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage (Vsup)	6 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	3.9 mm
Base Number Matches	1

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CAT1161/2 (16K)

Supervisory Circuits with I

C Serial CMOS EEPROM, Precision Reset Controller and Watchdog Timer

GEN

ALO

FEATURES

Watchdog monitors SDA signal (CAT1161)

400kHz I

C bus compatible

2.7V to 6.0V operation

Low power CMOS technology

16-Byte page write buffer

Built-in inadvertent write protection

Active high or low reset

— Precision power supply voltage monitor

— 5V, 3.3V and 3V systems

— Five threshold voltage options

1,000,000 Program/Erase cycles

Manual Reset

100 Year data retention

8-pin DIP or 8-pin SOIC

Commercial and industrial temperature ranges

— V

lock out

— Write protect pin, WP

DESCRIPTION

voltages support 5V, 3.3V and 3V systems. If power supply

The CAT1161/2 is a complete memory and supervisory voltages are out of tolerance reset signals become active,

solution for microcontroller-based systems. A serial preventing the system microcontroller, ASIC or peripherals

EEPROM memory (16K) with hardware memory write from operating. Reset signals become inactive typically 200

protection, a system power supervisor with brown out ms after the supply voltage exceeds the reset threshold

protection and a watchdog timer are integrated together level. With both active high and low reset signals, interface

in low power CMOS technology. Memory interface is via to microcontrollers and other ICs is simple. In addition, a

reset pin can be used as a debounced input for push-button

an I

C bus.

manual reset capability.

The 1.6-second watchdog circuit returns a system to a

known good state if a software or hardware glitch halts The CAT1161/2 memory features a 16-byte page. In addition,

or “hangs” the system. The CAT1161 watchdog monitors hardware data protection is provided by a write protect pin

the SDA line, making an additional PC board trace WP and by a V

sense circuit that prevents writes to

unnecessary. The lower cost CAT1162 does not have a memory whenever V

falls below the reset threshold or

until V

reaches the reset threshold during power up.

watchdog timer.

The power supply monitor and reset circuit protects Available packages include an 8-pin DIP and a surface

memory and system controllers during power up/down mount, 8-pin SO package.

and against brownout conditions. Five reset threshold

PIN CONFIGURATION

RESET

GND

DC = Do not connect

BLOCK DIAGRAM

EXTERNAL LOAD

DOUT

ACK

VCC

GND

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

SENSE AMPS

SHIFT REGISTERS

CAT1161/2

VCC

RESET

SCL

SDA

START/STOP

LOGIC

16K

EEPROM

XDEC

CONTROL

LOGIC

Part Dash Minimum

Number Threshold

-45

-42

-30

-28

-25

4.50

4.25

3.00

2.85

2.55

Maximum

Threshold

4.75

4.50

RESET Controller

DATA IN STORAGE

HIGH VOLTAGE/

TIMING CONTROL

STATE COUNTERS

SLAVE

ADDRESS

COMPARATORS

3.15

3.00

2.70

Only for

CAT1161

WATCHDOG

SCL

Precision

Vcc Monitor

RESET

Characteristics subject to change without notice.

Doc. No. 3002, Rev. E

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