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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.

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)