CAT1027LI-30-G datasheet, PDF - EEWORLD Datasheet

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CAT1027LI-30-G: DescriptionPower Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8; CategoryPower/power management The power supply circuit; File Size198KB，20 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/; Environmental Compliance

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CAT1027LI-30-G Overview

Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8

CAT1027LI-30-G 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
Other features	RESET THRESHOLD VOLTAGE IS 3.075V
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code	R-PDIP-T8
JESD-609 code	e4
length	9.27 mm
Number of channels	2
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	DIP
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	5.33 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	NO
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	NICKEL PALLADIUM GOLD
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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CAT1026, CAT1027

Dual Voltage Supervisory Circuits with

I²C Serial 2k-bit CMOS EEPROM

FEATURES

Precision V

Power Supply Voltage Monitor

—

5 V, 3.3 V and 3 V systems

—

Five threshold voltage options

Additional voltage monitoring

—

Externally adjustable down to 1.25 V

Watchdog timer (CAT1027 only)

Active High or Low Reset

—

Valid reset guaranteed at V

= 1 V

400 kHz I

C Bus

2.7 V to 5.5 V Operation

Low power CMOS technology

16-Byte Page Write Buffer

Built-in inadvertent write protection

1,000,000 Program/Erase cycles

Manual Reset capability

100 year data retention

Industrial and extended temperature ranges

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

(3 x 3 mm foot-print) packages

—

TDFN max height is 0.8 mm

For Ordering Information details, see page 19.

The CAT1027 is designed with a 1.6 second

watchdog timer circuit that resets a system to a known

state if software or a hardware glitch halts or “hangs”

the system. The CAT1027 features a watchdog timer

interrupt input, WDI.

The on-chip 2k-bit EEPROM memory features a 16-byte

page. In addition, hardware data protection is provided

by a V

sense circuit that prevents writes to memory

whenever V

falls below the reset threshold or until V

reaches the reset threshold during power up.

Available packages include 8-pin DIP and surface

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

MSOP packages. The TDFN package thickness is

0.8 mm maximum. TDFN footprint is 3 x 3 mm.

supply monitor and reset circuit protects memory and

systems controllers during power up/down and

against brownout conditions. If power supply voltages

are out of tolerance reset signals become active

preventing the system microcontroller, ASIC, or

peripherals from operating.

The CAT1026 features two open drain reset outputs:

¯¯¯¯¯¯

one (RESET) drives high and the other (RESET)

drives low whenever V

falls below the threshold.

Reset outputs become inactive typically 200ms after

the supply voltage exceeds the reset threshold value.

With both active high and low reset signals, interface

to microcontrollers and other ICs is simple. CAT1027

¯¯¯¯¯¯

has only a RESET output. In addition, the RESET pin

can be used as an input for push-button manual reset

capability.

The CAT1026 and CAT1027 provide an auxiliary

voltage sensor input, V

SENSE

, which is used to monitor a

second system supply. The auxiliary high impedance

comparator drives the open drain output, V

LOW

whenever the sense voltage is below 1.25 V threshold.

DESCRIPTION

The CAT1026 and CAT1027 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 techno–

logy. Memory interface is via a 400 kHz I

C bus.

The CAT1026 and CAT1027 provide a precision V

sense circuit with five reset threshold voltage options

that support 5 V, 3.3 V and 3 V systems. The power

Characteristics subject to change without notice

Doc. No. MD-3010 Rev. P

CAT1027LI-30-G Related Products

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Description	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8	Power Supply Management Circuit, Adjustable, 2 Channel, CMOS, PDIP8, 0.300 INCH, ROHS COMPLIANT, PLASTIC, MS-001,DIP-8
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to
Maker	Catalyst	Catalyst	Catalyst	Catalyst	Catalyst
Parts packaging code	DIP	DIP	DIP	DIP	DIP
package instruction	DIP,	DIP,	DIP,	DIP,	DIP,
Contacts	8	8	8	8	8
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99
Other features	RESET THRESHOLD VOLTAGE IS 3.075V	RESET THRESHOLD VOLTAGE IS 4.375V	RESET THRESHOLD VOLTAGE IS 4.625V	RESET THRESHOLD VOLTAGE IS 2.625V	RESET THRESHOLD VOLTAGE IS 2.925V
Adjustable threshold	YES	YES	YES	YES	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code	R-PDIP-T8	R-PDIP-T8	R-PDIP-T8	R-PDIP-T8	R-PDIP-T8
JESD-609 code	e4	e4	e4	e4	e4
length	9.27 mm	9.27 mm	9.27 mm	9.27 mm	9.27 mm
Number of channels	2	2	2	2	2
Number of functions	1	1	1	1	1
Number of terminals	8	8	8	8	8
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	DIP	DIP	DIP	DIP	DIP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	IN-LINE	IN-LINE	IN-LINE	IN-LINE	IN-LINE
Peak Reflow Temperature (Celsius)	260	260	260	260	260
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	5.33 mm	5.33 mm	5.33 mm	5.33 mm	5.33 mm
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
Nominal supply voltage (Vsup)	3.3 V	5 V	5 V	3 V	3.3 V
surface mount	NO	NO	NO	NO	NO
technology	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD
Terminal form	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
Terminal pitch	2.54 mm	2.54 mm	2.54 mm	2.54 mm	2.54 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	40	40	40	40	40
width	7.62 mm	7.62 mm	7.62 mm	7.62 mm	7.62 mm
Base Number Matches	-	1	1	1	1

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