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CAT14004 Datasheet(PDF) 1 Page - Catalyst Semiconductor

No. de Pieza. CAT14004
Descripción  Voltage Supervisor with I2C Serial CMOS EEPROM
Descarga  14 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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CAT14004 Datasheet(HTML) 1 Page - Catalyst Semiconductor

 
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CAT140xx
© 2006 Catalyst Semiconductor, Inc.
1
Doc. No. 1117 Rev. A
Characteristics subject to change without notice
Voltage Supervisor with I
2C 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 = 1 V
Supports Standard and Fast I
2C Protocol
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
DESCRIPTION
The CAT140xx (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 both the standard
(100kHz) as well as fast (400kHz) I
2C protocol.
The CAT140xx 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
14002
2-Kbit
14004
4-Kbit
14008
8-Kbit
14016
16-Kbit
PIN FUNCTION
Pin Name
Function
A0, A1, A2
Device Address Inputs
SDA
Serial Data Input/Output
SCL
Serial Clock Input
RST/RST
¯¯¯¯
Reset Output
VCC
Power Supply
VSS
Ground
NC
No Connect
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
8
7
6
5
VCC
RST/RST
SCL
SDA
NC /
NC / NC / NC / A0
CAT14016 / 08 / 04 / 02
SOIC (W)
NC / NC / A1 A1
1
2
3
4
A2 A2 A2
VSS
/
/
/


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