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TC9457F - Firmware Built In Digital Servo

General Description

Pin No.

LCD segment Segment signal outputs to the LCD panel.

Up to 72 segments in a matrix with COM1 to COM4 can outputs /Output ports be displayed.

Key Features

  • CMOS.
  • technology DTS microcontroller LSI incorporating a CD digital servo and LCD/LED driver Operating supply voltage: When CD is operating, VDD = 4.5 to 5.5 V (5.0 V typ. ) When CD is turned off, VDD = 2.7 to 5.5 V (CPU operating) Current consumption: When CD is operating, IDD = 55 mA (typ. ) When CD is turned off, IDD = 2 mA (typ. ) (using 4.5 MHz crystal; CPU operating) When CD is turned off, IDD = 0.1 mA (using 75 kHz crystal; CPU operating) Operating temperature range: Ta =.

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Datasheet Details

Part number TC9457F
Manufacturer Toshiba
File Size 251.86 KB
Description Firmware Built In Digital Servo
Datasheet download datasheet TC9457F Datasheet

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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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TC9457F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC9457F Firmware Built In Digital Servo The TC9457F is a firmware incorporating CD digital servo system. In addition to an LCD/LED driver, 4-channel 6-bit AD converters, and 2-wire/3-wire serial interface, it has a buzzer function, interrupt function, and 8-bit timer/counter. The CPU allows selection of the operating clock from three types of crystal oscillators (16.9344 MHz, 4.5 MHz, and 75 kHz), making interfacing with a CD easy. The CD digital servo incorporates various functions and circuits required for CD systems. These include sync separation protection and interpolation, EFM demodulation, error correction, digital equalizer for servoing, and a servo control circuit.