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UPD784224YGK Datasheet

  • UPD784224YGK

  • 16/8-BIT SINGLE-CHIP MICROCONTROLLERS

  • 92頁

  • NEC   NEC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD784224, 784225, 784224Y, 784225Y
16/8-BIT SINGLE-CHIP MICROCONTROLLERS
The
碌
PD784224 and 784225 are products of the
碌
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
碌
PD784224Y and 784225Y are based on the
碌
PD784225 Subseries with the addition of a multimaster-
supporting I
2
C bus interface.
Flash memory versions, the
碌
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鈥檚 manuals. Be sure to read this manual when
designing your system.
碌
PD784225, 784225Y Subseries User鈥檚 Manual - Hardware : U12697E
78K/IV Series User鈥檚 Manual - Instruction
: U10905E
FEATURES
鈥?I
2
C bus
鈥?ROM correction
鈥?Inherits peripheral functions of
碌
PD780058Y
Subseries
鈥?Minimum instruction execution time
160 ns (main system clock f
XX
= 12.5 MHz)
61
碌
s (subsystem clock f
XT
= 32.768 kHz)
鈥?I/O port: 67 pins
鈥?Timer/counter: 16-bit timer/counter
脳
1 unit
8-bit timer/counter
脳
4 units
鈥?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
碌
PD784225Y Subseries only
鈥?Standby function
HALT/STOP/IDLE mode
In power-saving mode: HALT/IDLE mode (with
subsystem clock)
鈥?Clock division function
鈥?Watch timer: 1 channel
鈥?Watchdog timer: 1 channel
鈥?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
鈥?Buzzer output function
f
XX
/2
10
, f
XX
/2
11
, f
XX
/2
12
, f
XX
/2
13
selectable
鈥?A/D converter: 8-bit resolution
脳
8 channels
鈥?D/A converter: 8-bit resolution
脳
2 channels
鈥?Supply voltage: V
DD
= 1.8 to 5.5 V
APPLICATION FIELD
Car audio, portable audio, telephones, etc.
Unless contextually excluded, references in this document to
碌
PD784225 mean
碌
PD784224, 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.
漏
1997, 2000

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