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参数资料
| 型号： | μPD784225Y |
| 厂商： | NEC Corp. |
| 英文描述： | 16 Bit Single Chip Microcontrollers(16 位单片微控制器) |
| 中文描述： | 16位单片机微控制器（16位单片微控制器） |
| 文件页数： | 1/68页 |
| 文件大小： | 278K |
| 代理商： | ΜPD784225Y |
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1997
PRELIMINARY PRODUCT INFORMATION
MOS INTEGRATED CIRCUIT
μ
PD784224Y, 784225Y
16/8-BIT SINGLE-CHIP MICROCONTROLLERS
The
μ
PD784225Y is based on the
μ
PD784225 with an I
2
C bus control function appended, and is ideal for
applications in audio-visual.
Flash memory versions, such as
μ
PD78F4225Y, that can operate in the same voltage range as the mask ROM
version, and various development tools are under development.
The functions are explained in detail in the following user’s manuals. Be sure to read this manual when
designing your system.
μ
PD784225, 784225Y Subseries User’s Manual - Hardware : Planned
78K/IV Series User’s Manual - Instruction
: U10905E
FEATURES
I
2
C bus
ROM correction
Inherits peripheral functions of
μ
PD780058 subseries
Pin-compatible with
μ
PD784225 subseries
Minimum instruction execution time
160 ns (main system clock f
XX
= 12.5 MHz)
61
μ
s (subsystem clock f
XT
= 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 I
2
C
bus): 1 channel
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
f
XX
, f
XX
/2, f
XX
/2
2
, f
XX
/2
3
, f
XX
/2
4
, f
XX
/2
5
, f
XX
/2
6
, f
XX
/2
7
, f
XT
selectable
Buzzer output function
f
XX
/2
10
, f
XX
/2
11
, f
XX
/2
12
, f
XX
/2
13
selectable
A/D converter: 8-bit resolution
×
8 channels
D/A converter: 8-bit resolution
×
2 channels
Supply voltage: V
DD
= 1.8 to 5.5 V
Document No. U12376EJ1V0PM00 (1st edition)
Date Published June 1997 N
Printed in Japan
APPLICATION FIELD
Car audio, portable audio, telephones, etc.
Unless contextually excluded, references in this document to
μ
PD784225Y mean
μ
PD784224Y and
μ
PD784225Y.
The information contained in this document is being issued in advance of the production cycle for the
device. The parameters for the device may change before final production or NEC Corporation, at its own
discretion, may withdraw the device prior to its production.
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