
DATA SHEET
1997
DESCRIPTION
The
μ
PD78081(A) and 78082(A) are members of the
μ
PD78083 Subseries of the 78K/0 Series microcontrollers.
These products are produced with a more stringent quality assurance program than that of the
μ
PD78081 and
78082 (standard models) (NEC classifies these products as “special products” by quality grade).
Besides a high-speed, high-performance CPU, these microcontrollers have on-chip ROM, RAM, I/O ports,
8-bit resolution A/D converter, timer, serial interface, interrupt control, and other peripheral hardware.
The
μ
PD78P083(A) including a one-time PROM version which can operate in the same power supply voltage
range as a mask ROM version, and various development tools are available.
The details of the functions are described in the following User’s Manuals. Be sure to read the documents before
starting design.
μ
PD78083 Subseries User’s Manual
: IEU-1407
78K/0 Series User’s Manual Instructions
: IEU-1372
FEATURES
Internal ROM and RAM
Program Memory
(ROM)
Data Memory
(Internal High-speed RAM)
μ
PD78081(A)
8 Kbytes
256 bytes
44-pin plastic QFP (10
×
10 mm)
μ
PD78082(A)
16 Kbytes
384 bytes
Minimum instruction execution time can be changed from high-speed (0.4
μ
s) to low-speed (12.8
μ
s)
I/O ports: 33
8-bit resolution A/D converter : 8 channels
Serial interface : 1 channel
3-wire serial I/O/UART
mode : 1 channel
Timer : 3 channels
Supply voltage : V
DD
= 1.8 to 5.5 V
APPLICATION FIELDS
Controllers for automobile electronic control systems, gas detector circuit-breakers, various types of safety
equipment, etc.
In addition to the
μ
PD78081(A) and 78082(A), this Data Sheet also describes the
μ
PD78081(A2). Unless otherwise
specified, however, the
μ
PD78081(A) and 78082(A) are used throughout this Data Sheet as the representative
products, and their descriptions also apply to the
μ
PD78081(A2).
Document No. U12436EJ1V0DS00 (1st edition)
Date Published July 1997 N
Printed in Japan
The information in this document is subject to change without notice.
Part Number
Item
Package
8-BIT SINGLE-CHIP MICROCONTROLLER
MOS INTEGRATED CIRCUIT
μ
PD78081(A), 78082(A)