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CAT1025: CPU Supervisor with 2 k EEPROM Memory

Overview
Specifications
Datasheet: Supervisory Circuits with I²C Serial 2k-bit CMOS EEPROM and Manual Reset
Rev. R (199.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview
Product Description
The CAT1025 is a complete memory and supervisory solution for microcontroller-based systems. A 2 k-bit 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 400 kHz I²C bus.
The CAT1025 provides a precision VCC sense circuit and two open drain outputs: one (RESET) drives high and the other (RESET) drives low whenever VCC falls below the reset threshold voltage. The CAT1025 also has a Write Protect input (WP). Write operations are disabled if WP is connected to a logic high.
The power supply monitor and reset circuit protect memory and system controllers during power up/down and against brownout conditions. Five reset threshold voltages support 5.0 V, 3.3 V and 3.0 V 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 200 ms after the supply voltage exceeds the reset threshold level. With both active high and low reset signals, interface to microcontrollers and other ICs is simple. In addition, the RESET pin or a separate input, MR, can be used as an input for push-button manual reset capability.
The CAT1025 memory features a 16-byte page. In addition, hardware data protection is provided by a VCC sense circuit that prevents writes to memory whenever VCC falls below the reset threshold or until VCC reaches the reset threshold during power up.
Available packages include an 8-pin DIP, 8-pin SOIC, 8-pin TSSOP, 8-pin TDFN and 8-pin MSOP. The TDFN package thickness is 0.8 mm maximum. TDFN footprint is 3 x 3 mm.
Features
 
  • Precision power supply voltage supervisor
    5.0 V, 3.3 V and 3.0 V systems
    Five threshold voltage options
  • Active high or low reset
    — Valid reset guaranteed at VCC = 1V
  • 400 kHz I²C bus
  • 3.0 V to 5.5 V operation
  • Low power CMOS technology
  • 16-Byte page write buffer
  • Built-in inadvertent write protection
    — WP pin
  • 1,000,000 Program/Erase cycles
  • Manual reset input
  • 100 year data retention
  • 8-pin DIP, SOIC, TSSOP, MSOP &
    TDFN (3x3mm foot print) packages
  • Industrial and extended temperature ranges
Applications
  • Industrial control
  • Medical systems
  • Printers
  • Mass storage
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (5)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT1025LI-25-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1025LI-28-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1025LI-30-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1025LI-42-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1025LI-45-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1025WI-25-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tube 100 $0.8666
CAT1025WI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1025WI-28-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tube 100 $0.8666
CAT1025WI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1025WI-30-G Last Shipments
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tube 100  
CAT1025WI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1025WI-42-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tube 100 $0.8666
CAT1025WI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1025WI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1025YI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1025YI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1025YI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1025YI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1025YI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1025ZD4I-25T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1025ZD4I-28T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1025ZD4I-30T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1025ZD4I-42T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1025ZD4I-45T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1025ZI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1025ZI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1025ZI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1025ZI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1025ZI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 2 to 4
Mouser   (2015-07-09) : <1K
ON Semiconductor   (2015-07-08) : 900
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 2 to 4
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 13,146
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2015-07-08) : 3,000
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : 4 to 8
Datasheet: Supervisory Circuits with I²C Serial 2k-bit CMOS EEPROM and Manual Reset
Rev. R (199.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview

Product Compliance Status Description Type Density Organization Data Transmission Standard fcycle Max (kHz) tACC Max ns VCC Min (V) VCC Max (V) Istandby Max (µA) Iact Max (mA) T Min (°C) T Max (°C) Package Type
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   MSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   MSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   MSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   MSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 2 k EEPROM Memory   Serial   2 kb   256 x 8   I2C   400   900   2.7   5.5   40   3   -40   85   MSOP-8 
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