UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 6

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

Readers
Purpose
Organization
How to Read This Manual
Conventions
6
This manual is intended for user engineers who wish to understand the functions of the
78K0/FE2 and design and develop application systems and programs for these devices.
The target products are as follows.
78K0/FE2:
This manual is intended to give users an understanding of the functions described in the
Organization below.
The 78K0/FE2 manual are separated into two parts: this manual and the instructions
edition (common to the 78K/0 Series).
• Pin functions
• Internal block functions
• Interrupts
• Other on-chip peripheral functions
• Electrical specifications
It is assumed that the readers of this manual have general knowledge of electrical
engineering, logic circuits, and microcontrollers.
• When using this manual as the manual for (A) and (A2) grade products:
• To gain a general understanding of functions:
• How to interpret the register format:
• To check the details of a register when you know the register name:
Data significance:
Active low representations: ××× (overscore over pin and signal name)
Note:
Caution:
Remark:
Numerical representations: Binary
→ Only the quality grade differs between (A) grade products and (A2) grade
→ Read this manual in the order of the CONTENTS. The mark <R> shows major
→ For a bit number enclosed in brackets, the bit name is defined as a reserved word
→ Refer to APPENDIX C REGISTER INDEX.
products.
Read the part number as follows.
•
•
•
•
revised points.
in the assembler, and is already defined in the header file named sfrbit.h in the C
compiler.
μ
μ
μ
μ
PD78F0887→
PD78F0888→
PD78F0889→
PD78F0890→
μ
PD78F0887 (A), 78F0888 (A), 78F0889 (A), 78F0890 (A)
User’s Manual
78F0887 (A2), 78F0888 (A2), 78F0889 (A2), 78F0890 (A2)
(This Manual)
User’s Manual U17554EJ4V0UD
78K0/FE2
INTRODUCTION
μ
μ
μ
μ
PD78F0887 (A), 78F0887 (A2)
PD78F0888 (A), 78F0888 (A2)
PD78F0889 (A), 78F0889 (A2)
PD78F0890 (A), 78F0890 (A2)
Higher digits on the left and lower digits on the right
Footnote for item marked with Note in the text.
Information requiring particular attention
Supplementary information
Decimal
Hexadecimal
... ×××× or ××××B
... ××××
... ××××H
• CPU functions
• Instruction set
• Explanation of each instruction
User’s Manual
78K/0 Series
Instructions