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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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UPD6464A Fiches technique(PDF) 1 Page - NEC |
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UPD6464A Fiches technique(HTML) 1 Page - NEC |
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1 / 52 page  © 1995, 1996 DATA SHEET The µPD6464A,6465 are CMOS LSIs for on-screen character display that control various display systems (such as tape counters) including the program screens of deck-type VCRs and LD players. These LSIs are used in combination with a microcomputer. It can display characters each consisting of 12 (horizontal) by 18 (vertical) dots. Some chinese characters and some pictograms can also be displayed by combining two or more characters. The µPD6464A,6465 include a power-ON clear function and a video RAM batch clear command that mitigate the workload of the host microcomputer. It also has a synchronization separator and a ×4 multiplier on chip, eliminating the need of connecting an external separator IC and a crystal resonator, which reduces the mounting area and the total cost. FEATURES • Video signal input/output : Composite video signal • Number of display characters : 12 lines, 24 columns (288 characters) • Number of character types : 128 ( µPD6464A)/256 (µPD6465) (ROM). Variable by mask code option. • Character size : 1 dot/1 line. 2 lines (field) can be displayed in line units. • Character color : White (single color) • Background : No background, black framing, black-on-white, and black filling • Dot matrix : 12 (horizontal) × 18 (vertical) dots without gap between adjacent characters • Blinking : Blinking can be turned ON/OFF in character units. Blinking ratio is 1:1. Blinking frequency is selectable from about 0.5 Hz, 1 Hz, and 2 Hz in screen units. • Character signal output: : Can support VCRs with S pins if external mixer is connected because character signal and blanking signal output pins are provided. • Video RAM data clear : Video RAM data are cleared by video RAM clear command and power-ON clear function. • Supported video signal method : NTSC/PAL/PAL-M/SECAM/PAL-N ( µPD6464A only) • Internal circuit : Synchronization separation circuit for composite synchronizing signal and ×4 multiplier • Interface with microcomputer : Serial input type of 8-bit variable word length • Supply voltage : +5 V, single power supply ORDERING INFORMATION Part Number Package µPD6464ACS-××× 24-pin plastic shrink DIP (300 mil) µPD6465CS-××× 24-pin plastic shrink DIP (300 mil) µPD6464AGT-××× 24-pin plastic SOP (375 mil) µPD6465GT-××× 24-pin plastic SOP (375 mil) Remark ××× : ROM code suffix (CS-001, GT-101 : NEC standard device) The information in this document is subject to change without notice. Document No. S11043EJ4V0DS00 (4th edition) Date Published May 1998 N CP(K) Printed in Japan MOS INTEGRATED CIRCUIT µPD6464A,6465 ON-SCREEN CHARACTER DISPLAY CMOS LSI FOR 12-LINE, 24-COLUMN DECK-TYPE VCR The mark shows major revised points. |
Numéro de pièce similaire - UPD6464A |
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Description similaire - UPD6464A |
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