CAT150049JWI-GT3 datasheet(1/15 Pages) CATALYST

部件名	CAT150049JWI-GT3

功能描述	Voltage Supervisor with 2-Kb and 4-Kb SPI Serial CMOS EEPROM

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制造商	CATALYST [Catalyst Semiconductor]

网页	http://www.catalyst-semiconductor.com

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CAT15002, CAT15004

1

Doc. No. 1126 Rev. A

Characteristics subject to change without notice

Voltage Supervisor with 2-Kb and 4-Kb SPI

Serial CMOS EEPROM

FEATURES

Precision Power Supply Voltage Monitor

5V, 3.3V, 3V & 2.5V systems

7 threshold voltage options

Active High or Low Reset

Valid reset guaranteed at VCC = 1V

10MHz SPI compatible

16-byte page write buffer

Low power CMOS technology

1,000,000 Program/Erase cycles

100 year data retention

Industrial temperature range

RoHS-compliant 8-pin SOIC package

For Ordering Information details, see page 14.

PIN CONFIGURATION

SOIC (W)

CS

¯¯

1

8 VCC

SO

2

7 RST/RST

¯¯¯¯

WP

¯¯¯

3

6 SCK

VSS 4

5 SI

DESCRIPTION

The CAT15002/04 (see table below) are memory and

supervisory

solutions

for

microcontroller

based

systems. A CMOS serial EEPROM memory and a

system power supervisor with brown-out protection

are integrated together. Memory interface is via SPI

bus serial interface.

The CAT15002/04 provides a precision VCC sense

circuit with two reset output options: CMOS active low

output or CMOS active high. The RESET output is

active whenever VCC is below the reset threshold or

falls below the reset threshold voltage.

The power supply monitor and reset circuit protect

system controllers during power up/down and against

brownout conditions. Seven reset threshold voltages

support 5V, 3.3V, 3V and 2.5V 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 240ms after the supply

voltage exceeds the reset threshold level.

MEMORY SIZE SELECTOR

Product

Memory density

15002

2-Kbit

15004

4-Kbit

PIN FUNCTION

Pin Name

Function

CS

¯¯

Chip Select

SO

Serial Data Output

WP

¯¯¯

Write Protect

VSS

Ground

SI

Serial Data Input

SCK

Serial Clock Input

RST/RST

¯¯¯¯

Reset Output

VCC

Power Supply

THRESHOLD SUFFIX SELECTOR

Nominal Threshold

Voltage

Threshold Suffix

Designation

4.63V

L

4.38V

M

4.00V

J

3.08V

T

2.93V

S

2.63V

R

2.32V

Z

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ON Semiconductor	CAT150049JWI-GT3	185Kb / 15P	Voltage Supervisor with 2-Kb and 4-Kb SPI Serial CMOS EEPROM Doc. No. MD-1126 Rev. B

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类似说明 - CAT150049JWI-GT3

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