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UPD78C18CW Datasheet(PDF) 1 Page - NEC |
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UPD78C18CW Datasheet(HTML) 1 Page - NEC |
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1 / 110 page  © 1995 DATA SHEET µPD78C17,78C18 The information in this document is subject to change without notice. The mark 5 shows revised points. Document No. IC-2789B (O.D.No. IC-8048B) Date Published June 1995 P Printed in Japan 8-BIT SINGLE-CHIP MICROCONTROLLER (WITH A/D CONVERTER) The µPD78C18 is an 8-bit CMOS microcontroller which integrates 16-bit ALU, ROM, RAM, an A/D converter, a multi-function timer/event counter, and a general-purpose serial interface onto a single chip, and whose memory (ROM/RAM) is externally expandable up to 31 Kbytes. The µPD78C18 can operate at low power consumption because of its CMOS architecure and is provided with a standby function that enables data retention with an even lower power consumption. The µPD78C17 is the ROM-less version of the µPD78C18. Its memory (ROM/RAM) is expandable externally up to 63 Kbytes. A detailed explanation of the functions is provided in the user's manual listed below. It should be read before starting design work. 87AD Series µPD78C18 User's Manual: IEU-1314 FEATURES • 159 types of instructions: 87AD series instruction set plus multiply/divide and 16-bit operation instructions • Instruction cycle: 0.8 µs (at 15-MHz operation) • Internal ROM: 32768 x 8 bits ( µPD78C18 only) • Internal RAM: 1024 x 8 bits • Up to 64 Kbytes of memory (ROM/RAM) can be directly addressed. • High-resolution 8-bit A/D converter: 8 analog inputs • General-purpose serial interface: Asynchronous, synchronous, I/O interface modes • Multi-function 16-bit timer/event counter • Two 8-bit timers • I/O lines Input/output ports : 28 ( µPD78C17), 40 (µPD78C18) Edge detection inputs : 4 • 11 interrupt functions External : 3, Internal: 8 (Non-maskable: 1, Maskable: 10) • Zero-cross detection function: (2 inputs) • Standby function: HALT mode, hardware/software STOP mode • Mask option pull-up resistors can be incorporated into Ports A, B, and C. ( µPD78C18 only) ORDERING INFORMATION Part Number Package µPD78C17CW 64-pin plastic shrink DIP (750 mils) µPD78C17GF-3BE 64-pin plastic QFP (14 x 20 mm) µPD78C17GQ-36 64-pin plastic QUIP µPD78C18CW-xxx 64-pin plastic shrink DIP (750 mils) µPD78C18GF-xxx-3BE 64-pin plastic QFP (14 x 20 mm) µPD78C18GQ-xxx-36 64-pin plastic QUIP 1990 MOS INTEGRATED CIRCUIT |
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