Catalyst Semiconductor Introduces 4 Voltage Supervisors

Catalyst Semiconductor, Inc. (NASDAQ:CATS) a supplier of analog, mixed-signal and non-volatile memory semiconductors continues to rapidly expand its family of voltage supervisors with four new devices that give designers industry-standard performance for monitoring the power supply (Vcc) status of a microprocessor, microcontroller, ASIC or other system processor. The CAT853, CAT863, CAT859 and CAT869 extend Catalyst’s family of industry-standard supervisor circuits, providing an even broader range of pin combinations to meet the diverse application requirements of the embedded control market.

All four of Catalyst’s new voltage supervisors are available in 3-lead SOT-23 packages. The CAT853 and CAT859 pin configuration is set as: Pin 1: reset; Pin 2: ground; Pin 3: supply voltage. The CAT863 and CAT869 pin configuration is set as: Pin 1: reset; Pin 2: supply voltage; Pin 3: ground.

Catalyst’s new microprocessor supervisors are available in standard threshold levels of 2.93V, 3.08V and 4.38V. The CAT853 and CAT863 feature an open-drain output, active low function. The CAT859 and CAT869 offer a push-pull output, active low function. The devices are pin-for-pin compatible with Microchip, STMicro and other industry-standard supervisors.

Product Features

  • Pin configurations
    CAT853, CAT859: Pin 1: RESET; Pin 2: ground
    Pin 3: supply voltage CAT863, CAT869
    Pin 1: RESET; Pin 2: supply voltage; Pin 3: ground
  • Output configurations
    CAT853 and CAT863: open-drain, active-low output
    CAT859 and CAT869: push-pull, active-low output
  • Pin-for-pin compatible with Microchip, STMicro and other industry-standard supervisors
  • Reset thresholds: 2.93V, 3.08V, 4.38V
  • Reset outputs valid down to 1.0V supply
  • Power supply current: 6µA
  • Packaging: 3-lead SOT23

Price and Availability
The CAT853, CAT863, CAT859 and CAT869 voltage supervisors are priced at $0.24 each in 10,000 piece quantities. Samples are available now. Projected lead-time for production quantities is currently 6 to 8 weeks ARO.

About Catalyst Semiconductor
Founded in 1985, Catalyst Semiconductor, Inc. is headquartered in Santa Clara, California. The Company produces analog and mixed signal products in addition to an extensive range of non-volatile memories. The analog and mixed-signal product lines include Digitally Programmable Potentiometers (DPP(TM)), white and color LED drivers, DC/DC converters, voltage supervisors, linear regulators and I/O expanders. The memory product lines consist of serial and parallel EEPROMs, Flash and NVRAM. Catalyst devices are used in telecommunications, networking systems, computation, automotive, industrial and consumer markets. Typical applications include LCD displays, automotive instrumentation, optical networks, modems, wireless LANs, network cards, DIMM modules, cellular telephones, digital satellite box receivers, set-top boxes and Internet routers. Catalyst’s Quality Management System is ISO 9001:2000 certified. All Catalyst products are available in “green” lead- and halogen-free versions with full RoHS compliance.

DPP is a trademark of Catalyst Semiconductor, Inc.