參數(shù)資料
型號(hào)： UPD784224Y
廠商： NEC Corp.
英文描述： 16/8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 16/8-BIT單晶片微控制器
文件頁(yè)數(shù)： 1/92頁(yè)
文件大?。?/td> 687K
代理商： UPD784224Y
DATA SHEET
1997, 2000
MOS INTEGRATED CIRCUIT
μ
PD784224, 784225, 784224Y, 784225Y
16/8-BIT SINGLE-CHIP MICROCONTROLLERS
The
μ
PD784224 and 784225 are products of the
μ
PD784225 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
μ
PD784224Y and 784225Y are based on the
μ
PD784225 Subseries with the addition of a multimaster-
supporting I
2
C bus interface.
Flash memory versions, the
μ
PD78F4225 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.
μ
PD784225, 784225Y Subseries User’s Manual - Hardware : U12697E
78K/IV Series User’s Manual - Instruction
: U10905E
FEATURES
I
2
C bus
ROM correction
Inherits peripheral functions of
μ
PD780058Y
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
Note
): 1 channel
Note
μ
PD784225Y 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
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. U12376EJ1V0DS00 (1st edition)
Date Published May 2000 J CP(K)
Printed in Japan
APPLICATION FIELD
Car audio, portable audio, telephones, etc.
Unless contextually excluded, references in this document to
μ
PD784225 mean
μ
PD784224, 784225, 784224Y,
and 784225Y.
The mark shows major revised points.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
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