2000
DATA SHEET
DESCRIPTION
The
μ
PD780021A, 780022A, 780023A, and 780024A are members of the
μ
PD780024A Subseries of the 78K/0
Series. Only selected functions of the existing
μ
PD78054 Subseries are provided, and the serial interface is enhanced.
The
μ
PD780021AY, 780022AY, 780023AY, and 780024AY are the
μ
PD780024A Subseries with a multimaster
supporting I
2
C bus interface, which makes them suitable for AV equipment.
Flash memory versions, the
μ
PD78F0034A, 78F0034B, 78F0034AY, and 78F0034BY, that can operate in the same
power 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.
μ
PD780024A, 780034A, 780024AY, 780034AY
Subseries User’s Manual:
78K/0 Series Instructions User’s Manual:
U14046E
U12326E
FEATURES
Internal ROM and RAM
Item
Program Memory
(Internal ROM)
Data Memory
Package
Part Number
(Internal High-Speed RAM)
μ
PD780021A, 780021AY
8 KB
512 bytes
64-pin plastic SDIP (19.05 mm (750))
μ
PD780022A, 780022AY
16 KB
64-pin plastic QFP (14 x 14)
64-pin plastic LQFP (14 x 14)
μ
PD780023A, 780023AY
24 KB
1024 bytes
64-pin plastic TQFP (12 x 12)
μ
PD780024A, 780024AY
32 KB
64-pin plastic LQFP (10 x 10)
73-pin plastic FBGA (9 x 9)
External memory expansion space: 64 KB
Minimum instruction execution time
Expanded-specification products of
μ
PD780021A, 780022A, 780023A, 780024A: 0.166
μ
s (f
X
= 12 MHz, V
DD
= 4.5 to 5.5 V)
μ
PD780021AY, 780022AY, 780023AY, 780024AY and conventional products of
μ
PD780021A, 780022A,
780023A, 780024A: 0.238
μ
s (f
X
= 8.38 MHz, V
DD
= 4.0 to 5.5 V)
I/O ports: 51 (N-ch open-drain (5 V withstanding voltage): 4)
8-bit resolution A/D converter: 8 channels (AV
DD
= 1.8 to 5.5 V)
Serial interface: 3 channels
μ
PD780021A, 780022A, 780023A, 780024A: UART mode, 3-wire serial I/O mode (2 channels)
μ
PD780021AY, 780022AY, 780023AY, 780024AY: UART mode, 3-wire serial I/O mode, I
2
C bus mode
Timer: 5 channels
Power supply voltage: V
DD
= 1.8 to 5.5 V
8-BIT SINGLE-CHIP MICROCONTROLLERS
MOS INTEGRATED CIRCUIT
μ
PD780021A, 780022A, 780023A, 780024A
780021AY, 780022AY, 780023AY, 780024AY
The mark shows major revised points.
Document No. U14042EJ4V0DS00 (4th edition)
Date Published December 2002 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 products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.