DESCRIPTION

The µPD78324 is a 16/8-bit single-chip microcontroller that incorporates a high-performance 16-bit CPU. The µPD78324 is one of 78K/III series. The internal capacity is significantly increased compared with the conventional µPD78322.

A realtime pulse unit for realtime pulse control required in motor control, an A/D converter, a ROM, and a RAM have been integrated into one chip.

The µPD78324 incorporates 32K-byte mask ROM and 1024-byte RAM.

The µPD78323 is a ROM-less version of the µPD78324. Also, It is provided the µPD78P324 as an on-chip PROM product.

FEATURES

● Internal 16-bit architecture and external 8-bit data bus

● High-speed processing by pipeline control and instruction prefetch

• Minimum instruction execution time: 250 ns (with 16 MHz external clock in operation)

● Instruction set suitable for control operations (µPD78312 upward compatible)

• Multiply/divide instructions (16 bits × 16 bits, 32 bits ÷ 16 bits)

• Bit manipulation instruction

• String instruction, etc.

● On-chip high-function interrupt controller

• 3-level priority specifiable

• 3-type interrupt processing mode selectable

(Vectored interrupt function, context switching function, and macro service function)

● Variety of peripheral hardware

• Realtime pulse unit

• 8-channel, 10-bit A/D converter

• Watchdog timer

● Powerful serial interface (with an on-chip dedicated baud rate generator)

• UART ····· 1 channel

• SBI (NEC Standard Serial Bus Interface)

• 3-wire serial I/O ····· 1 channel

APPLICATIONS

● Motor control devices