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CAT1024WE-30

Description
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO8, LEAD AND HALOGEN FREE, SOIC-8
CategoryPower/power management    The power supply circuit   
File Size140KB,20 Pages
ManufacturerCatalyst
Websitehttp://www.catalyst-semiconductor.com/
Environmental Compliance
Download Datasheet Parametric View All

CAT1024WE-30 Overview

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

CAT1024WE-30 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerCatalyst
Parts packaging codeSOIC
package instructionSOP,
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)3 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
technologyCMOS
Temperature levelAUTOMOTIVE
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3.9 mm
Base Number Matches1
Preliminary Information
CAT1024, CAT1025
Supervisory Circuits with I
2
C Serial 2k-bit CMOS EEPROM and Manual Reset
FEATURES
Precision power supply voltage monitor
16-Byte page write buffer
H
GEN
FR
ALO
EE
LE
A
D
F
R
E
E
TM
— 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
CC
= 1V
400kHz I
2
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
CC
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
CC
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
CC
sense circuit that prevents writes to memory whenever V
CC
disabled if WP is connected to a logic high.
falls below the reset threshold or until V
CC
reaches the reset
The CAT1024 also provides a precision V
CC
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
2
C bus.
PIN CONFIGURATION
DIP Package (P, L)
SOIC Package (J, W)
TSSOP Package (U, Y)
MSOP Package (R, Z)
MR
1
RESET
2
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
NC
SCL
SDA
8
7
6
5
1
2
MR
RESET
NC
VSS
CAT1024
3
4
MR
1
RESET
2
RESET 3
VSS 4
CAT1025
8 VCC
7 WP
6 SCL
5 SDA
VCC
8
WP
7
SCL
6
SDA
5
1
MR
2
RESET
CAT1025
3
RESET
4
V
SS
© 2004 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc No. 3008, Rev. M
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