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MD82C89/B - Renesas Electronics

Description: The Intersil 82C89 Bus Arbiter is manufactured using a self-aligned silicon gate CMOS process (Scaled SAJI IV). This circuit, along with the 82C88 bus controller, provides full bus arbitration and control for multi-processor systems. The 82C89 is typically used in medium to large 80C86 or 80C88 systems where access to the bus by several processors must be coordinated. The 82C89 also provides high output current and capacitive drive to eliminate the need for additional bus buffering. Static CMOS circuit desi

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MD82C89/B - Renesas Electronics PCB footprint - Ceramic Dual-In-Line Packages - Ceramic Dual-In-Line Packages - F20.3
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MD82C89/B Details

  • Manufacturer Part Number:

    MD82C89/B

  • Brand Name:

    Renesas

  • Pbfree Code:

    No

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    CERDIP

  • Package Description:

    DIP-20

  • Pin Count:

    20

  • Manufacturer Package Code:

    F20.3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.30

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • Bus Compatibility:

    80C88; 80C86

  • Clock Frequency-Max:

    12 MHz

  • JESD-30 Code:

    R-CDIP-T20

  • JESD-609 Code:

    e0

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -55 °C

  • Package Body Material:

    CERAMIC, METAL-SEALED COFIRED

  • Package Code:

    DIP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    IN-LINE

  • Supply Current-Max:

    1 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    NO

  • Technology:

    CMOS

  • Temperature Grade:

    MILITARY

  • Terminal Finish:

    Tin/Lead (Sn/Pb)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Position:

    DUAL

  • uPs/uCs/Peripheral ICs Type:

    SYSTEM INTERFACE LOGIC, BUS ARBITER AND CONTINUOUS SIGNAL GENERATOR

MD82C89/B Frequently Asked Questions (FAQs)

  • The recommended operating voltage range for the MD82C89/B is 4.5V to 5.5V, with a typical voltage of 5V.
  • The MD82C89/B has an internal POR and BOR circuitry. To handle POR, ensure a stable power supply during power-up. For BOR, use an external brown-out detector or implement a software-based BOR detection mechanism.
  • The MD82C89/B supports a maximum clock frequency of 12 MHz, but it's recommended to operate at 11.0592 MHz or lower to ensure stable operation.
  • To configure the MD82C89/B for low-power operation, use the power-down mode (PD) and idle mode (IDLE). You can also reduce the clock frequency and use the internal clock oscillator to minimize power consumption.
  • The XTAL1 and XTAL2 pins are used to connect an external crystal oscillator for the internal clock generator. XTAL1 is the input pin, and XTAL2 is the output pin.

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