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CAT1026: CPU Supervisor with 2 k EEPROM Memory

Overview
Specifications
Datasheet: Dual Voltage Supervisory Circuits with I²C Serial 2k-bit CMOS EEPROM
Rev. 18 (186.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview
Product Description
The CAT1026 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 CAT1026 provides a precision VCC sense circuit with five reset threshold voltage options that support 5.0 V, 3.3 V and 3.0 V systems. The power supply monitor and reset circuit protects memory and systems controllers during power up/down and against brownout conditions. If power supply voltages are out of tolerance reset signals become active preventing the system microcontroller, ASIC, or peripherals from operating.
The CAT1026 features two open drain reset outputs: one (RESET) drives high and the other (RESET) drives low whenever VCC falls below the threshold. Reset outputs become inactive typically 200 ms after the supply voltage exceeds the reset threshold value. With both active high and low reset signals, interface to microcontrollers and other ICs is simple. In addition, the RESET pin can be used as an input for push-button manual reset capability.
The CAT1026 provides an auxiliary voltage sensor input, VSENSE, which is used to monitor a second system supply. The auxiliary high impedance comparator drives the open drain output, VLOW, whenever the sense voltage is below 1.25 V threshold.
The on-chip 2k-bit EEPROM 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 3x3 mm.
Features
 
  • Precision VCC power supply voltage supervisor
    5.0 V, 3.3 V and 3.0 V systems
    Five threshold voltage options
  • Additional voltage monitoring
    — Externally adjustable down to 1.25 V
  • Active high or low reset
    — Valid reset guaranteed to VCC = 1 V
  • 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
  • 1,000,000 Program/Erase cycles
  • Manual reset capability
  • 100 year data retention
  • 8-pin DIP, SOIC, TSSOP, MSOP or TDFN
    (3 x 3 mm foot-print) packages
    — TDFN max height is 0.8mm
  • 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.
CAT1026LI-25-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1026LI-28-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1026LI-30-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1026LI-42-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1026LI-45-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory PDIP-8 646AA NA Tube 50 $0.8866
CAT1026WI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1026WI-28-G Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tube 100 $0.8666
CAT1026WI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1026WI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1026WI-42-GT3 Last Shipments
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000  
CAT1026WI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $0.78
CAT1026YI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1026YI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1026YI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1026YI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1026YI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $0.78
CAT1026ZD4I-25T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1026ZD4I-28T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1026ZD4I-30T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1026ZD4I-42T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1026ZD4I-45T3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory TDFN-8 511AL 1 Tape and Reel 3000  
CAT1026ZI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1026ZI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1026ZI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1026ZI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 2 k EEPROM Memory MSOP-8 846AD 1 Tape and Reel 3000 $0.9066
CAT1026ZI-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) : 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) : Contact Factory
Market Leadtime (weeks) : 4 to 8
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 3,000
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) : 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) : 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) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Datasheet: Dual Voltage Supervisory Circuits with I²C Serial 2k-bit CMOS EEPROM
Rev. 18 (186.0kB)
»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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   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   50   3   -40   85   MSOP-8 
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