
DATA SHEET
1994, 2000
The mark
shows major revised points.
MOS INTEGRATED CIRCUIT
8-BIT SINGLE-CHIP MICROCONTROLLERS
PD78052,78053,78054,78055,78056,78058
DESCRIPTION
The
PD78052, 78053, 78054, 78055, 78056 and 78058 are PD78054 Subseries products of the 78K/0 Series.
A variety of peripheral functions such as an 8-bit resolution A/D converter, 8-bit resolution D/A converter, timer,
serial interface, real-time output port and interrupt functions are included on chip.
The
PD78P054 and 78P058, one-time PROM or EPROM products that can be operated in the same supply voltage
range as the mask ROM versions, and various development tools are also available.
Detailed function descriptions are provided in the following user’s manuals. Be sure to read them before
designing.
PD78054, 78054Y Subseries User’s Manual: U11747E
78K/0 Series User’s Manual Instructions:
U12326E
FEATURES
 High-capacity on-chip ROM & RAM
Item
Program
Data Memory
Internal High-
Internal
Package
Part Number
Memory (ROM)
Speed RAM
Buffer RAM
Expansion RAM
PD78052
16 KB
512 bytes
32 bytes
None
 80-pin plastic QFP (14
× 14 mm)
PD78053
24 KB
1024 bytes
 80-pin plastic TQFP (fine pitch)
PD78054
32 KB
(12
× 12 mm)
PD78055
40 KB
PD78056
48 KB
PD78058
60 KB
1024 bytes
 External memory expansion space: 64 KB
 Minimum instruction execution time can be changed from high-speed (0.4
s) to ultra-low-speed (122 s)
 I/O ports: 69 (N-ch open drain: 4)
 8-bit resolution A/D converter: 8 channels
 8-bit resolution D/A converter: 2 channels
 Serial interface: 3 channels
 Timer: 5 channels
 Supply voltage: VDD = 2.0 to 6.0 V
APPLICATIONS
Cellular phones, pagers, printers, AV equipment, air-conditioners, cameras, PPCs, fuzzy-logic home appliances,
vending machines, etc.
Document No. U12327EJ5V0DS00 (5th edition)
Date Published February 2000 N CP(K)
Printed in Japan
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.