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D7564A Datasheet Upd7564a

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET .. MOS INTEGRATED CIRCUIT µPD7564A, 7564A(A) 4-BIT SINGLE-CHIP.

General Description

The µPD7564A is a 4-bit single-chip microputer 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.

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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