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UPD78C14 Datasheet(PDF) 1 Page - NEC |
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UPD78C14 Datasheet(HTML) 1 Page - NEC |
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1 / 52 page  © 1994 The µPD78C14(A) is a single-chip, CMOS 8-bit microcontroller in which a 16-bit ALU, a ROM, a RAM, an A/D converter, a multifunction timer/event counter, and a serial interface are all integrated. Moreover, a 48-Kbyte external expansion memory (ROM/RAM) can be connected. Since the µPD78C14(A) uses the CMOS construction, its operations are performed with low power consumption. By using the standby function, functions such as data retention are performed with lower power consumption. For details on functions, refer to the User’s Manual listed below. Please read it before starting design work. 87AD series µPD78C18 User’s Manual: IEU-1314 FEATURES High reliability as compared with µPD78C14 159 instructions: 87AD instruction set Multiply and divide instructions, 16-bit arithmetic operation instructions Instruction cycle: 0.8 µs at 15 MHz Internal ROM: 16384 W x 8 Internal RAM: 256 W x 8 Direct addressing to an external memory (ROM/RAM) up to 64 Kbytes Highly accurate 8-bit A/D converter: Eight analog inputs General-purpose serial interface: Asynchronous, synchronous, and I/O interface modes Multifunction 16-bit timer/event counter Two 8-bit timers I/O lines: 44 Interrupt functions: Three external, eight internal • Non-maskable interrupt: 1 • Maskable interrupts: 10 Zero-cross detection function (two inputs) Standby functions: HALT mode, Hardware/software STOP mode ORDERING INFORMATION Part number Package Quality grade µPD78C14G(A)-xxx-36 64-pin plastic QUIP Special µPD78C14GF(A)-xxx-3BE 64-pin plastic QFP (14 x 20 mm) Special µPD78C14L(A)-xxx 68-pin plastic QFJ (950 x 950 mil) Special Remark xxx is a ROM code suffix. Document No. IC-2813B (O.D. No. IC-8242B) Date Published May 1995 P Printed in Japan µPD78C14(A) MOS INTEGRATED CIRCUIT 8-BIT SINGLE-CHIP MICROCONTROLLER (WITH A/D CONVERTER) Please refer to “Quality grade on NEC Semiconductor Devices” (Document number IEI-1209) published by NEC Corporation to know the specification of quality grade on the devices and its recommended applications. © 1991 H The mark shows revised points. * DATA SHEET The information in this document is subject to change without notice. |
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