DATA SHEET
碌
PD780021A, 780022A, 780023A, 780024A,
780021AY, 780022AY, 780023AY, 780024AY
8-BIT SINGLE-CHIP MICROCONTROLLERS
MOS INTEGRATED CIRCUIT
DESCRIPTION
The
碌
PD780021A, 780022A, 780023A, and 780024A are members of the
碌
PD780024A Subseries of the 78K/0
Series. Only selected functions of the existing
碌
PD78054 Subseries are provided, and the serial interface is enhanced.
The
碌
PD780021AY, 780022AY, 780023AY, and 780024AY are the
碌
PD780024A Subseries with a multimaster
supporting I
2
C bus interface, which makes them suitable for AV equipment.
Flash memory versions, the
碌
PD78F0034A and 78F0034AY, that can operate in the same power supply voltage
range as the mask ROM versions, and various development tools, are also supported.
Detailed function descriptions are provided in the following user鈥檚 manuals. Be sure to read them before
designing.
碌
PD780024A, 780034A, 780024AY, 780034AY
Subseries User鈥檚 Manual:
78K/0 Series User鈥檚 Manual Instructions:
U14046E
U12326E
FEATURES
鈥?Internal ROM and RAM
Item
Part Number
Program Memory
(Internal ROM)
8 KB
16 KB
24 KB
32 KB
1024 bytes
Data Memory
(Internal High-Speed RAM)
512 bytes
Package
碌
PD780021A, 780021AY
碌
PD780022A, 780022AY
碌
PD780023A, 780023AY
碌
PD780024A, 780024AY
鈥?64-pin plastic SDIP (19.05mm (750))
鈥?64-pin plastic QFP (14
脳
14)
鈥?64-pin plastic TQFP (12
脳
12)
鈥?External memory expansion space: 64 KB
鈥?Minimum instruction execution time: 0.24
碌
s (@ fx = 8.38 MHz operation)
鈥?I/O ports: 51 (N-ch open-drain 5 V withstand voltage: 4)
鈥?8-bit resolution A/D converter: 8 channels (AV
DD
= 1.8 to 5.5 V)
鈥?Serial interface: 3 channels
鈥?/div>
碌
PD780021A, 780022A, 780023A, 780024A: UART mode, 3-wire serial I/O mode (2 channels)
鈥?/div>
碌
PD780021AY, 780022AY, 780023AY, 780024AY: UART mode, 3-wire serial I/O mode, I
2
C bus mode
鈥?Timer: 5 channels
鈥?Power supply voltage: V
DD
= 1.8 to 5.5 V
APPLICATIONS
Telephones, household electrical appliances, pagers, AV equipment, car audios, office automation equipment, etc.
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.
Document No. U14042EJ3V0DS00 (3rd edition)
Date Published December 2000 N CP(K)
Printed in Japan
The mark
shows major revised points.
漏
1999, 2000
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