UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 11

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

Intended Readership
application systems using this subseries.
Purpose
subseries.
Organization
volume.
How to Read This Manual
This manual is intended for user engineers who understand the functions of the PD784026 subseries and wish to design
The purpose of this manual is to give users an understanding of the various hardware functions of the PD784026
The PD784026 subseries manual is divided into two volumes – the hardware volume (this manual) and the instruction
Readers are required a general knowledge of electrical and logic circuits and microcontrollers.
To readers using this manual as a PD784020, 784021, 784025, 78P4026 manual:
Pin functions
Internal block functions
Interrupts
Other internal peripheral functions
This manual covers the functions of the PD784020, 784021, 784025, 784026 and 78P4026. The relationship
between these products is shown below.
Internal PROM Product
Hardware
PD78P4026
Certain operating precautions apply to these products.
These precautions are stated at the relevant points in the text of each chapter, and
are also summarized at the end of each chapter. Be sure to read them.
PROM 64 K
RAM
2048
Internal Mask ROM Products
PREFACE
PD784026
PD784025
CPU functions
Addressing
Instruction set
ROM 48 K
RAM 2048
ROM 64 K
RAM 2048
Instruction
ROM-less Products
PD784020
PD784021
RAM 512
RAM 2048