CAT1025LE-45 datasheet, PDF - EEWORLD Datasheet

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CAT1025LE-45: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, LEAD AND HALOGEN FREE, PLASTIC, DIP-8; CategoryPower/power management The power supply circuit; File Size140KB，20 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/; Environmental Compliance

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CAT1025LE-45 Overview

Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, LEAD AND HALOGEN FREE, PLASTIC, DIP-8

CAT1025LE-45 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Catalyst
Parts packaging code	DIP
package instruction	DIP,
Contacts	8
Reach Compliance Code	unknown
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDIP-T8
JESD-609 code	e3
length	9.59 mm
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	4.57 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	CMOS
Temperature level	AUTOMOTIVE
Terminal surface	Matte Tin (Sn)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	7.62 mm

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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

— 5V, 3.3V and 3V systems

— Five threshold voltage options

■

Active high or low reset

■

Built-in inadvertent write protection

— WP pin (CAT1025)

■

1,000,000 Program/Erase cycles

■

Manual reset input

■

100 year data retention

■

8-pin DIP, SOIC, TSSOP, MSOP &

— Valid reset guaranteed at V

= 1V

■

400kHz I

C bus

■

3.0V to 5.5V operation

■

Low power CMOS technology

TDFN (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, 8-pin SOIC, 8-pin

a Write Protect input.

TSSOP, 8-pin TDFN and 8-pin MSOP. The TDFN package

The power supply monitor and reset circuit protect thickness is 0.8mm maximum. TDFN footprint is 3x3mm.

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

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 (J, W)

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

0.8mm maximum height - (RD4, ZD4)

VCC

SCL

SDA

RESET

VSS

CAT1024

RESET

RESET 3

VSS 4

CAT1025

8 VCC

7 WP

6 SCL

5 SDA

VCC

SCL

SDA

RESET

CAT1025

RESET

Characteristics subject to change without notice

Doc No. 3008, Rev. M

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