CAT1025SI-45TE13 datasheet, PDF

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CAT1025SI-45TE13: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, SOIC-8; CategoryPower/power management The power supply circuit; File Size99KB，17 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT1025SI-45TE13 Overview

Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, SOIC-8

CAT1025SI-45TE13 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Parts packaging code	SOIC
package instruction	SOP,
Contacts	8
Reach Compliance Code	unknow
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
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)	240
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.9 mm
Base Number Matches	1

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Preliminary Information

CAT1024, CAT1025

Supervisory Circuits with I

C Serial 2k-bit CMOS EEPROM and Manual Reset

FEATURES

Precision power supply voltage monitor

16-Byte page write buffer

GEN

ALO

Built-in inadvertent write protection

— 5V, 3.3V and 3V systems

— Five threshold voltage options

Active high or low reset

— WP pin (CAT1025)

1,000,000 Program/Erase cycles

Manual reset input

100 year data retention

8-pin DIP, SOIC, TSSOP, MSOP & TDFN

— Valid reset guaranteed at V

= 1V

400kHz I

C bus

2.7V to 5.5V operation

Low power CMOS technology

(3x4.9mm & 3x3mm foot print) packages

Industrial and extended temperature ranges

DESCRIPTION

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

voltages are out of tolerance reset signals become active,

preventing the system microcontroller, ASIC or peripherals

from operating. Reset signals become inactive typically 200

ms after the supply voltage exceeds the reset threshold

level. With both active high and low reset signals, interface

to microcontrollers and other ICs is simple. In addition, the

The CAT1025 provides a precision V

sense circuit

RESET

pin or a separate input,

MR,

can be used as an input

and two open drain outputs: one (RESET) drives high for push-button manual reset capability.

and the other (RESET) drives low whenever V

falls

below the reset threshold voltage. The CAT1025 also The CAT1024/25 memory features a 16-byte page. In

has a Write Protect input (WP). Write operations are addition, hardware data protection is provided by a V

sense circuit that prevents writes to memory whenever V

disabled if WP is connected to a logic high.

falls below the reset threshold or until V

reaches the reset

The CAT1024 also provides a precision V

sense threshold during power up.

circuit, but has only a

RESET

output and does not have

Available packages include an 8-pin DIP and a surface

a Write Protect input.

mount 8-pin SO, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP

The power supply monitor and reset circuit protect packages. The TDFN package thickness is 0.8mm maximum.

memory and system controllers during power up/down TDFN footprint options are 3x3mm or 3x4.9mm (MSOP pad

and against brownout conditions. Five reset threshold layout).

The CAT1024 and CAT1025 are complete memory and

supervisory solutions for microcontroller-based systems.

A 2k-bit serial EEPROM memory and a system power

supervisor with brown-out protection are integrated

together in low power CMOS technology. Memory

interface is via a 400kHz I

C bus.

PIN CONFIGURATION

DIP Package (P, L)

SOIC Package (S, V)

TSSOP Package (U, Y)

MSOP Package (R, Z)

RESET

NC 3

VSS 4

CAT1024

8 VCC

7 NC

6 SCL

5 SDA

(Bottom View)

TDFN Package: 3mm x 3mm

TDFN Package: 3mm x 4.9mm

0.8mm maximum height - (RD2, ZD2) 0.8mm maximum height - (RD4, ZD4)

VCC

SCL

SDA

RESET

VSS

VCC

SCL

SDA

RESET

VSS

CAT1024

RESET

RESET 3

VSS 4

CAT1025

8 VCC

7 WP

6 SCL

5 SDA

VCC

SCL

SDA

RESET

VSS

VCC

SCL

SDA

RESET

CAT1025

RESET

Characteristics subject to change without notice

Doc No. 3008, Rev. J

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