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UPD17068 - 4-BIT SINGLE-CHIP MICROCONTROLLER

Datasheet Summary

Features

  • Program memory (ROM) : 24K bytes (12032 × 16 bits) Character ROM (CROM) : 4086 × 24 bits (255 characters) Data memory (RAM) : 1007 × 4 bits Video RAM (VRAM) : 672 × 4 bits (can be used for data memory) Address stack : 12 levels Interrupt stack : 2 levels Instruction execution time : 2 µs (when an 8 MHz crystal is used) PLL frequency synth.

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Datasheet Details

Part number UPD17068
Manufacturer NEC
File Size 1.84 MB
Description 4-BIT SINGLE-CHIP MICROCONTROLLER
Datasheet download datasheet UPD17068 Datasheet
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Full PDF Text Transcription

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DATA SHEET MOS INTEGRATED CIRCUIT µPD17068 4-BIT SINGLE-CHIP MICROCONTROLLER CONTAINING IMAGE DISPLAY CONTROLLER AND PLL FREQUENCY SYNTHESIZER FOR DIGITAL TUNING SYSTEMS The µPD17068 is a 4-bit single-chip microcontroller for digital tuning systems. It contains an image display controller (IDC) that supports many types of display, and a PLL synthesizer. The CPU of the µPD17068 is capable of 4-bit parallel addition, logical operations, bit tests, setting/resetting of a carry flag, and supports a powerful interrupt function and timer function. The image display controller for on-screen display is user-programmable, allowing a range of displays to be programmed.
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