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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD784224, 784225, 784224Y, 784225Y
16/8-BIT SINGLE-CHIP MICROCONTROLLERS
The µPD784224 and 784225 are products of the µPD784225 Subseries in the 78K/IV Series. Besides a high-
speed and high performance CPU, these controllers have ROM, RAM, I/O ports, 8-bit resolution A/D and D/A
converters, timers, serial interfaces, a real-time output port, interrupt functions, and various other peripheral
hardware.
The µPD784224Y and 784225Y are based on the µPD784225 Subseries with the addition of a multimaster-
supporting I2C bus interface.
Flash memory versions, the µPD78F4225 and 78F4225Y, which replace the internal ROM of the mask ROM
version with flash memory, and various development tools are also available.
The functions are explained in detail in the following user’s manuals. Be sure to read this manual when
designing your system.
µPD784225, 784225Y Subseries User’s Manual - Hardware : U12697E
78K/IV Series User’s Manual - Instruction
: U10905E
FEATURES
• I2C bus
• ROM correction
• Inherits peripheral functions of µPD780058Y
Subseries
• Minimum instruction execution time
160 ns (main system clock fXX = 12.5 MHz)
61 µs (subsystem clock fXT = 32.768 kHz)
• I/O port: 67 pins
• Timer/counter: 16-bit timer/counter × 1 unit
8-bit timer/counter × 4 units
• Serial interface: 3 channels
UART/IOE (3-wire serial I/O): 2 channels
CSI (3-wire serial I/O, multi-master supporting I2C
busNote): 1 channel
Note µPD784225Y Subseries only
• Standby function
HALT/STOP/IDLE mode
In power-saving mode: HALT/IDLE mode (with
subsystem clock)
• Clock division function
• Watch timer: 1 channel
• Watchdog timer: 1 channel
• Clock output function
fXX, fXX/2, fXX/22, fXX/23, fXX/24, fXX/25, fXX/26, fXX/27, fXT
selectable
• Buzzer output function
fXX/210, fXX/211, fXX/212, fXX/213 selectable
• A/D converter: 8-bit resolution × 8 channels
• D/A converter: 8-bit resolution × 2 channels
• Supply voltage: VDD = 1.8 to 5.5 V
APPLICATION FIELD
Car audio, portable audio, telephones, etc.
Unless contextually excluded, references in this document to µPD784225 mean µPD784224, 784225, 784224Y,
and 784225Y.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Document No. U12376EJ1V0DS00 (1st edition)
Date Published May 2000 J CP(K)
Printed in Japan
The mark shows major revised points.
©
1997, 2000

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µPD784224, 784225, 784224Y, 784225Y
ORDERING INFORMATION
Part Number
Package
Internal ROM (Bytes) Internal RAM (Bytes)
µPD784224GC-×××-8BT
µPD784224GK-×××-9EUNote
µPD784225GC-×××-8BT
µPD784225GK-×××-9EU
µPD784224YGC-×××-8BT
µPD784224YGK-×××-9EU
µPD784225YGC-×××-8BTNote
µPD784225YGK-×××-9EUNote
80-pin plastic QFP (14 × 14 mm)
80-pin plastic TQFP (fine pitch) (14 × 20 mm)
80-pin plastic QFP (14 × 14 mm)
80-pin plastic TQFP (fine pitch) (14 × 20 mm)
80-pin plastic QFP (14 × 14 mm)
80-pin plastic TQFP (fine pitch) (14 × 20 mm)
80-pin plastic QFP (14 × 14 mm)
80-pin plastic TQFP (fine pitch) (14 × 20 mm)
96 K
96 K
128 K
128 K
96 K
96 K
128 K
128 K
3,584
3,584
4,352
4,352
3,584
3,584
4,352
4,352
Note Under development
Remark ××× indicates a ROM code suffix.
2 Data Sheet U12376EJ1V0DS00

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µPD784224, 784225, 784224Y, 784225Y
78K/IV SERIES LINEUP
: In mass production
: Under development
Standard models
µPD784026
Enhanced
A/D converter,
16-bit timer, and
power management
ASSP models
µPD784956A
For DC inverter control
µ PD784908
On-chip IEBusTM controller
µPD784915
Software servo control
On-chip analog circuit for VCRs
Enhanced timer
µ PD784967
On-chip FIP controller/driver
Supports I2C bus
µ PD784038Y
µ PD784038
Enhanced internal memory capacity
Pin-compatible with the µPD784026
Supports multi-master I2C bus
µPD784216AY
µPD784216A
100-pin, enhanced I/O and
internal memory capacity
µPD784054
µPD784046
On-chip 10-bit A/D converter
µ PD784938A
Enhanced functions of the
µ PD784908, enhanced
internal memory capacity,
ROM correction added.
Supports multi-master I2C bus
µPD784928Y
µPD784928
Enhanced functions
of the µPD784915
Supports multi-master I2C bus
µPD784225Y
µPD784225
80-pin, ROM correction added
Supports multi-master I2C bus
µPD784218AY
µPD784218A
Enhanced internal memory
capacity, ROM correction added
Data Sheet U12376EJ1V0DS00
3