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CAT1641: CPU Supervisor with 64 k Serial EEPROM Memory

Overview
Specifications
Datasheet: CPU Supervisor with 64 k EEPROM
Rev. D (132.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview
Product Description
The CAT1641 is a complete memory and supervisory solution for microcontroller-based systems. A 64kbit 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 400kHz I²C bus.

The CAT1641 provides a precision VCC sense circuit that drives an open drain output, RESET high whenever VCC falls below the reset threshold voltage.

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 5V, 3.3V and 3V 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 options, interface to microcontrollers and other ICs is simple.

The CAT1641 memory features a 64-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, SOIC, TSSOP and 4.9 x 3mm TDFN.
Features
 
  • Precision power supply voltage monitor
    - 5V, 3.3V and 3V systems
    - +5.0V (+/- 5%, +/- 10%)
    - +3.3V (+/- 5%, +/- 10%)
    - +3.0V (+/- 10%)
  • Active high reset
  • Valid reset guaranteed at VCC=1V
  • 400kHz I²C bus
  • 3.0V to 5.5V operation
  • Low power CMOS technology
  • 64-Byte page write buffer
  • 1,000,000 Program/Erase cycles
  • 100 year data retention
  • 8-pin DIP, SOIC, TSSOP and TDFN packages
  • Industrial temperature range
Applications
  • Industrial control
  • Medical systems
  • Printers
  • Mass storage
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (4)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT1641LI-28-G Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory PDIP-8 646AA NA Tube 50 $1.1933
CAT1641LI-30-G Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory PDIP-8 646AA NA Tube 50 $1.1933
CAT1641LI-42-G Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory PDIP-8 646AA NA Tube 50 $1.1933
CAT1641LI-45-G Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory PDIP-8 646AA NA Tube 50 $1.1933
CAT1641WI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $1.1733
CAT1641WI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $1.1733
CAT1641WI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $1.1733
CAT1641WI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $1.1733
CAT1641WI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory SOIC-8 751BD 1 Tape and Reel 3000 $1.1733
CAT1641YI-25-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $1.1733
CAT1641YI-28-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $1.1733
CAT1641YI-30-G Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tube 100 $1.1733
CAT1641YI-30-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $1.1733
CAT1641YI-42-G Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tube 100 $1.1733
CAT1641YI-42-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $1.1733
CAT1641YI-45-GT3 Active
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TSSOP-8 948AL 1 Tape and Reel 3000 $1.1733
CAT1641ZD2I30GT3 Consult Sales Office
Pb-free
Halide free
CPU Supervisor with 64 k Serial EEPROM Memory TDFN-8 511AM 1 Tape and Reel 3000  
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) : 2 to 4
ON Semiconductor   (2015-07-08) : 4,633
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2015-07-08) : 2,100
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) : 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
Datasheet: CPU Supervisor with 64 k EEPROM
Rev. D (132.0kB)
»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 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   PDIP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   SOIC-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
 Pb-free 
 Halide free 
 Active     CPU Supervisor with 64 k Serial EEPROM Memory   Serial   64 kb   8k x 8   I2C   400   -   3   5.5   40   3   -40   85   TSSOP-8 
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