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UPD78C12A Datasheet(PDF) 1 Page - NEC |
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UPD78C12A Datasheet(HTML) 1 Page - NEC |
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1 / 66 page  The mark 5 shows major revised points. 8-BIT SINGLE-CHIP MICROCOMPUTER (WITH A/D CONVERTER) MOS INTEGRATED CIRCUIT DATA SHEET The information in this document is subject to change without notice. DATA SHEET Document No. IC-2678C (O. D. No. IC-7769E) Date Published February 1995 P Printed in Japan DESCRIPTION The µPD78C11A is a CMOS 8-bit microprocessor which can integrate 16-bit ALU, ROM, RAM, an A/D converter, a multi-function timer/event counter, and a general-purpose serial interface into a single chip, then expand the memory (ROM/RAM) up to 60K bytes externally. The µPD78C10A is a ROM-less product of the µPD78C11A, and can directly address the external memory up to 64k bytes. The µPD78C12A is a product which has more built-in ROM capacity than the µPD78C11A, and its memory (ROM/RAM) can be externally extended up to 56K bytes. The µPD78C10A, µPD78C11A, and µPD78C12A operated at low power consumption, because they have a CMOS construction. Also, they can hold data with low power consumption by using standby function. On-chip PROM products, µPD78CP14 and µPD78CP18 which are ideal for evaluation or preproduction use during system development, early start-up and short-run multiple-device production of application sets, are available. FEATURES • Abundant 159 types of instructions : 87AD series instruction set, multiplication/division instructions, 16-bit operation instructions • Instruction cycle : 0.8 µs (at 15 MHz operation) • On-chip ROM : 4096W × 8 ( µPD78C11A), 8192W × 8 (µPD78C12A) Non ( µPD78C10A) • On-chip RAM : 256W × 8 • High-precision 8-bit A/D converter : 8 analog inputs • General-purpose serial interface : Asynchronous, synchronous, I/O interface mode • Multi-function 16-bit timer/event counter • Two 8-bit timers • I/O lines : 32 ( µPD78C10A), 44 (µPD78C11A, 78C12A) • Interrupt function (external - 3, internal - 8) : Non-maskable interrupt × 1, maskable interrupt × 10 • Standby function : HALT mode, hardware/software STOP mode • Zero-cross detection function : (2 inputs) • On-chip pull-up resistor (port A, B, C: µPD78C11A, 78C12A only) by mask option Caution The µPD78C10A does not hava a mask option. µPD78C10A, 78C11A, 78C12A © 1990 |
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