CAT1640LI-45 datasheet, PDF - EEWORLD Datasheet

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CAT1640LI-45: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, HALOGEN FREE AND LEAD FREE, PLASTIC, MS-001, DIP-8; CategoryPower/power management The power supply circuit; File Size151KB，18 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/; Environmental Compliance

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CAT1640LI-45 Overview

Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDIP8, HALOGEN FREE AND LEAD FREE, PLASTIC, MS-001, DIP-8

CAT1640LI-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	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	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	INDUSTRIAL
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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CAT1640, CAT1641

Supervisory Circuits with I

C Serial 64K CMOS EEPROM

FEATURES

Precision power supply voltage monitor

3.0V to 5.5V operation

Low power CMOS technology

64-Byte page write buffer

1,000,000 Program/Erase cycles

100 year data retention

GEN

ALO

— 5V, 3.3V and 3V systems

- +5.0V (+/- 5%, +/- 10%)

- +3.3V (+/- 5%, +/- 10%)

- +3.0V (+/- 10%)

Active low reset, CAT1640

Active high reset, CAT1641

Valid reset guaranteed at V

=1V

400kHz I

C bus

8-pin DIP, SOIC, TSSOP and TDFN packages

Industrial temperature range

DESCRIPTION

The CAT1640 and CAT1641 are complete memory and

supervisory solutions for microcontroller-based systems.

A 64kbit 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.

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 options,

interface to microcontrollers and other ICs is simple. In

addition, the

RESET

(CAT1640) pin can be used as an

input for push-button manual reset capability.

The CAT1640 provides a precision V

sense circuit

and drives an open drain output,

RESET

low whenever The CAT1640/41 memory features a 64-byte page. In

addition, hardware data protection is provided by a V

falls below the reset threshold voltage.

sense circuit that prevents writes to memory whenever V

The CAT1641 provides a precision VCC sense circuit falls below the reset threshold or until V

reaches the reset

that drives an open drain output, RESET high whenever threshold during power up.

VCC falls below the reset threshold voltage.

Available packages include an 8-pin DIP, SOIC, TSSOP

The power supply monitor and reset circuit protect and 4.9 x 3mm TDFN.

memory and system controllers during power up/down

and against brownout conditions. Five reset threshold

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

supply voltages are out of tolerance reset signals become

PIN CONFIGURATION

PDIP (P, L) SOIC (J, W)

A0 1

A1 2

A2 3

VSS 4

CAT1640

8 VCC

RESET

6 SCL

5 SDA

TSSOP (U, Y)

A0 1

A1 2

A2 3

VSS 4

A0 1

A1 2

A2 3

VSS 4

CAT1641

TDFN PACKAGE: 4.9MM X 3MM

(RD2, ZD2)

8 VCC

RESET

6 SCL

5 SDA

8 VCC

7 RESET

6 SCL

5 SDA

VSS

VCC

RESET

SCL

SDA

CAT1640

A0 1

A1 2

A2 3

VSS 4

CAT1641

8 VCC

7 RESET

6 SCL

5 SDA

VSS

VCC

RESET

SCL

SDA

CAT1641

Characteristics subject to change without notice

Doc. No. 25082, Rev. 00

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