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CAT1024 Datasheet(PDF) 3 Page - Catalyst Semiconductor

No. de Pieza. CAT1024
Descripción  Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM and Manual Reset
Descarga  20 Pages
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Fabricante  CATALYST [Catalyst Semiconductor]
Página de inicio  http://www.catalyst-semiconductor.com
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CAT1024 Datasheet(HTML) 3 Page - Catalyst Semiconductor

 
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CAT1024, CAT1025
© 2007 Catalyst Semiconductor, Inc.
3
Doc. No. 3008 Rev. N
Characteristics subject to change without notice
PIN DESCRIPTION
RESET/RESET
¯¯¯¯¯¯:
RESET OUTPUTs
(RESET CAT1025 Only)
These are open drain pins and RESET
¯¯¯¯¯¯ can be used
as a manual reset trigger input. By forcing a reset
condition on the pin the device will initiate and
maintain a reset condition. The RESET pin must be
connected through a pull-down resistor, and the
RESET
¯¯¯¯¯¯ pin must be connected through a pull-up
resistor.
SDA:
SERIAL DATA ADDRESS
The bidirectional serial data/address pin is used to
transfer all data into and out of the device. The SDA
pin is an open drain output and can be wire-ORed
with other open drain or open collector outputs.
SCL:
SERIAL CLOCK
Serial clock input.
MR
¯¯¯:
MANUAL RESET INPUT
Manual Reset input is a debounced input that can be
connected to an external source for Manual Reset.
Pulling the MR input low will generate a Reset
condition. Reset outputs are active while MR
¯¯¯ input is
low and for the reset timeout period after MR
¯¯¯ returns
to high. The input has an internal pull up resistor.
WP (CAT1025 Only):
WRITE PROTECT INPUT
When WP input is tied to VSS or left unconnected write
operations to the entire array are allowed. When tied
to VCC, the entire array is protected. This input has an
internal pull down resistor.
PIN FUNCTION
Pin
Name
Function
NC
No Connect
RESET
¯¯¯¯¯¯
Active Low Reset Input/Output
VSS
Ground
SDA
Serial Data/Address
SCL
Clock Input
RESET
Active High Reset Output
(CAT1025 only)
VCC
Power Supply
WP
Write Protect (CAT1025 only)
MR
¯¯¯
Manual Reset Input
OPERATING TEMPERATURE RANGE
Industrial
-40ºC to 85ºC
Extended
-40ºC to 125ºC
CAT10XX FAMILY OVERVIEW
Device
Manual
Reset
Input Pin
Watchdog
Watchdog
Monitor
Pin
Write
Protection
Pin
Independent
Auxiliary
Voltage Sense
RESET:
Active High
and LOW
EEPROM
CAT1021
SDA
2k
CAT1022
SDA
2k
CAT1023
WDI
2k
CAT1024
2k
CAT1025
2k
CAT1026
2k
CAT1027
WDI
2k
For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163
data sheets.


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