DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD78323,78324
16/8-BIT SINGLE-CHIP MICROCONTROLLER
DESCRIPTION
The
µ
PD78324 is a 16/8-bit single-chip microcontroller that incorporates a high-performance 16-bit CPU. The
µ
PD78324
is one of 78K/III series. The internal capacity is significantly increased compared with the conventional
µ
PD78322.
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
µ
PD78324 incorporates 32K-byte mask ROM and 1024-byte RAM.
The
µ
PD78323 is a ROM-less version of the
µ
PD78324. Also, It is provided the
µ
PD78P324 as an on-chip PROM
product.
Detailed information about product features and specifications can be found in the following document.
µ
PD78322 User’s Manual : IEU-1248
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 (
µ
PD78312 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
• SBI (NEC Standard Serial Bus Interface)
• 3-wire serial I/O
····· 1 channel
····· 1 channel
APPLICATIONS
•
Motor control devices
Unless there are any particular diferences, the
µ
PD78324 is described as the representative model in this document.
The information in this document is subject to change without notice.
Document No. U10456EJ4V0DS00 (4th edition)
(Previous No. IC-2870)
Date Published November 1995 P
Printed in Japan
The mark
shows major revised points.
©
1991
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