CAT1025WI-28-GT3 ON Semiconductor, CAT1025WI-28-GT3 Datasheet - Page 3

• Manufacturer Part Number: CAT1025WI-28-GT3
• Description: IC SUPERVISR CPU 2K EEPROM 8SOIC
• Manufacturer: ON Semiconductor
• Type: Simple Reset/Power-On Resetr

Specifications of CAT1025WI-28-GT3

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active High/Active Low
• Reset Timeout: 130 ms Minimum
• Voltage - Threshold: 2.85V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
RESET/RESET
(RESET CAT1025 Only)
These are open drain pins and RESET
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
¯¯¯¯¯¯ pin must be connected through a pull-up
RESET
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.
¯¯¯ : 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
low and for the reset timeout period after MR
to high. The input has an internal pull up resistor.
WP (CAT1025 Only): WRITE PROTECT INPUT
When WP input is tied to V
operations to the entire array are allowed. When tied
to V
internal pull down resistor.
CAT10XX FAMILY OVERVIEW
For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163
data sheets.
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice
MR
CAT1021
CAT1022
CAT1023
CAT1024
CAT1025
CAT1026
CAT1027
Device
CC
, the entire array is protected. This input has an
¯¯¯¯¯¯
Input Pin
Manual
Reset
: RESET OUTPUTs
Watchdog
SS
or left unconnected write
¯¯¯¯¯¯ can be used
Watchdog
Monitor
¯¯¯ input is
SDA
SDA
¯¯¯ returns
WDI
WDI
Pin
Protection
Write
3
Pin
PIN FUNCTION
OPERATING TEMPERATURE RANGE
¯¯¯¯¯¯
RESET
RESET
Extended
Industrial
Name
SDA
SCL
V
WP
¯¯¯
Pin
NC
V
MR
CC
SS
Voltage Sense
Independent
Auxiliary
Function
No Connect
Active Low Reset Input/Output
Ground
Serial Data/Address
Clock Input
Active High Reset Output
(CAT1025 only)
Power Supply
Write Protect (CAT1025 only)
Manual Reset Input
-40ºC to 85ºC
-40ºC to 125ºC
Active High
and LOW
RESET:
CAT1024, CAT1025
Doc. No. MD-3008 Rev. R
EEPROM
2k
2k
2k
2k
2k
2k
2k