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D7564A - UPD7564A

General Description

The µPD7564A is a 4-bit single-chip microcomputer with a small number of ports in a small package, which is of low-order models, µPD7554 and 7564 sub-series in the µPD7500 series.

Key Features

  • 47 types of instructions (Subset of µPD7500H SET B).
  • Instruction cycle Ceramic oscillation : 2.86 µs (in operation at 700 kHz, 5 V).
  • Program memory (ROM) capacity: 1024 × 8 bits.
  • Data memory (RAM) capacity: 64 × 4 bits.
  • Test source: One external source and two internal sources.
  • 8-bit timer/event counter.
  • 15 I/O lines (Total output current of all pins: 100 mA).
  • Can directly drive a triac and a LED: P80 to P82.
  • Can d.

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Other Datasheets by NEC (now Renesas Electronics)

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D7566ACS UPD7566ACS
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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.

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DATA SHEET www.datasheet4u.com MOS INTEGRATED CIRCUIT µPD7564A, 7564A(A) 4-BIT SINGLE-CHIP MICROCOMPUTER DESCRIPTION The µPD7564A is a 4-bit single-chip microcomputer with a small number of ports in a small package, which is of low-order models, µPD7554 and 7564 sub-series in the µPD7500 series. With an on-chip serial interface, it performs efficient dispersion processing of a system as a sub-CPU for the 75X series or 78k series. The µPD7564A has outputs to directly drive a triac and LEDs and allows selection among many types of input/ output circuits using their respective mask options, sharply reducing the number of external circuits required. Details of functions are described in the User’s Manual shown below. Be sure to read in design.