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UPD75218 Scheda tecnica(PDF) 1 Page - NEC |
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UPD75218 Scheda tecnica(HTML) 1 Page - NEC |
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1 / 62 page  Major changes in this version are indicated by stars (5) in the margins. 4-BIT SINGLE-CHIP MICROCOMPUTER The µPD75218 is a microcomputer with a CPU capable of 1-, 4-, and 8-bit-wise data processing, ROM, RAM, I/O ports, an FIP controller/driver, a watch timer, a timer/pulse generator capable of outputting 14-bit PWM pulses, a serial interface and a vectored interrupt function integrated on a single chip. It is most suitable for applications which use fluorescent display tubes as display devices and require the timer/ watch function and high-speed interrupt servicing, such as VCR, CD and ECR. It can help to provide the unit with many functions and to decrease performance costs. The µPD75218 has larger ROM and RAM capacity than its predecessor, µPD75217. So several codes required before have been reduced to only one code in the µPD75218 specifications. The one-time PROM product, µPD75P218 and various development tools (IE-75001-R, assembler, etc.) are available for system development evaluation or small production. The following manual provides detailed description of the functions of the µPD75218. Be sure to read this manual when you design an application system. µPD75218 User’s Manual: IEU-692 FEATURES • On-chip large-capacity ROM and RAM • Program memory (ROM) : 32K × 8 bits • Data memory (RAM) : 1K × 4 bits • Architecture equal to that of an 8-bit microcomputer • High-speed operation: Minimum instruction execution time : 0.67 µs (when the microcomputer operates at 6.0 MHz) • Instruction execution time variable function realizing a wide range of operating voltages • On-chip programmable fluorescent indication panel (FIP) controller/driver • Timer function : 4 ch • 14-bit PWM output capability with the voltage synthesizer type electronic tuner • Buzzer output capability • Interrupt function with importance attached to applications • For power-off detection • For reception of remote-controller signal • Product with an on-chip PROM : µPD75P218 (on-chip EPROM : WQFN package) µPD75218 MOS INTEGRATED CIRCUIT DATA SHEET The information in this document is subject to change without notice. Document No. IC-3035 (O. D. No. IP-8484) Date Published November 1993 P Printed in Japan © NEC Corporation 1993 |
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