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MC6805K3 - 8-BIT MICROCOMPUTER

Download the MC6805K3 datasheet PDF. This datasheet also covers the MC6805K2 variant, as both devices belong to the same 8-bit microcomputer family and are provided as variant models within a single manufacturer datasheet.

General Description

The input and output signals for the MC6805K2 and MC6805K3 microcomputer units (MCUs) are described in the following paragraphs.

Vcc, VSS, AND VSTBY Power is supplied to the MCUs using these pins.

Key Features

  • 32 Bidirectional TTL I/O Lines Eight CMOS I/O Compatible Eight LED liO Compatible Eight Open Drain (Software Control).
  • User ROM: MC6805K2 - 2K Bytes MC6805K3 - 3.6K Bytes.
  • 96 Bytes of User RAM, 16 Bytes on Standby via VSTBY Pin.
  • 128 Bytes of User EEPROM with Write/Erase Latches.
  • Self-Check Mode.
  • Serial Peripheral Interface.
  • Zero-Crossing Detect/ Interrupt.
  • Two Cascadable 8-Bit Timers with 7-Bit Software Programmabl.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MC6805K2-Motorola.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MC6805K2 8-BIT MICROCOMPUTER
MC6805 (M6800 Series) 8-Bit MPU/MCU
MC6805P2 8-BIT MICROCOMPUTER
MC6805P4 8-BIT MICROCOMPUTER
MC6805P6 8-BIT MICROCOMPUTER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® MOTOROLA MC680SK2 MC680SK3 Product Preview 8-BIT MICROCOMPUTER UNITS WITH SERIAL PERIPHERAL INTERFACE AND TWO TIMERS The MC6805K2/MC6805K3 microcomputer units are members of the M6805 Family of low-cost single-chip microcomputers. These 8-bit microcomputers contain a CPU, on-chip clock, ROM, EEPROM, RAM, I/O, two timers, one programmable prescaler, and a serial peripheral interface. These units are designed for the user who needs an economical microcomputer with the proven capabilities of the M6800-based instruction set HARDWARE FEATURES • 32 Bidirectional TTL I/O Lines Eight CMOS I/O Compatible Eight LED liO Compatible Eight Open Drain (Software Control) • User ROM: MC6805K2 - 2K Bytes MC6805K3 - 3.