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UPD17228 の電気的特性と機能

UPD17228のメーカーはNECです、この部品の機能は「4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER」です。


製品の詳細 ( Datasheet PDF )

部品番号 UPD17228
部品説明 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
メーカ NEC
ロゴ NEC ロゴ 




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UPD17228 Datasheet, UPD17228 PDF,ピン配置, 機能
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD17225, 17226, 17227, 17228
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR SMALL GENERAL-PURPOSE INFRARED
REMOTE CONTROL TRANSMITTER
DESCRIPTION
µPD17225, 17226, 17227, 17228 (hereafter called µPD17225 subseries) are 4-bit single-chip microcontrollers for
small general-purpose infrared remote control transmitters.
It employs a 17K architecture of general-purpose register type devices for the CPU, and can directly execute
operations between memories instead of the conventional method of executing operations through the accumulator.
Moreover, all the instructions are 16-bit 1-word instructions which can be programmed efficiently.
In addition, a one-time PROM model, µPD17P218, to which data can be written only once, is also available. It is
convenient either for evaluating the µPD17225 subseries programs or small-scale production of application systems.
Detailed functions are described in the following manual. Be sure to read this manual when designing your
system.
µPD172×× Subseries User's Manual: U12795E
FEATURES
• Infrared remote controller carrier generator circuit (REM output)
• 17K architecture: General-purpose register system
• Program memory (ROM), Data memory (RAM)
Program memory (ROM)
Data memory (RAM)
µPD17225
4 K bytes
(2048 × 16)
µPD17226
8 K bytes
(4096 × 16)
111 × 4 bits
µPD17227
12 K bytes
(6144 × 16)
µPD17228
16 K bytes
(8192 × 16)
223 × 4 bits
• 8-bit timer
: 1 channel
• Basic internal timer/Watchdog timer : 1 channel (WDOUT output)
• Instruction execution time (can be changed in two steps)
at fX = 4 MHz
: 4 µs (high-speed mode)/8 µs (ordinary mode)
at fX = 8 MHz
: 2 µs (high-speed mode)/4 µs (ordinary mode)
• External interrupt pin (INT)
:1
• I/O pins
: 20
• Supply voltage
: VDD = 2.2 to 3.6 V (at fX = 8 MHz (high-speed mode))
VDD = 2.0 to 3.6 V (at fX = 4 MHz (high-speed mode))
• Low-voltage detector circuit (mask option)
Unless otherwise specified, the µPD17225 is treated as the representative model throughout this document.
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. U12643EJ2V0DS00 (2nd edition)
Date Published April 1999 N CP (K)
Printed in Japan
The mark shows major revised points.
©
1997,1999

1 Page





UPD17228 pdf, ピン配列
µPD17225, 17226, 17227, 17228
PIN CONFIGURATION (TOP VIEW)
• 28-pin plastic SOP (375 mil)
µPD17225GT-×××, 17226GT-×××, 17227GT-×××, 17228GT-×××
• 28-pin plastic shrink DIP (400 mil)
µPD17225CT-×××, 17226CT-×××, 17227CT-×××, 17228CT-×××
P0D 2
P0D 3
INT
P0E 0
P0E 1
P0E 2
P0E 3
REM
V DD
X OUT
X IN
GND
RESET
WDOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 P0D 1
27 P0D 0
26 P0C 3
25 P0C 2
24 P0C 1
23 P0C 0
22 P0B 3
21 P0B 2
20 P0B 1
19 P0B 0
18 P0A 3
17 P0A 2
16 P0A 1
15 P0A 0
Data Sheet U12643EJ2V0DS00
3


3Pages


UPD17228 電子部品, 半導体
µPD17225, 17226, 17227, 17228
CONTENTS
1. PIN FUNCTIONS ...........................................................................................................................
1.1 Pin Function List ................................................................................................................................
1.2 Input/Output Circuits .........................................................................................................................
1.3 Processing of Unused Pins ..............................................................................................................
8
8
9
10
2. MEMORY SPACE .........................................................................................................................
2.1 Program Counter (PC) .......................................................................................................................
2.2 Program Memory (ROM) ...................................................................................................................
2.3 Stack ...................................................................................................................................................
2.4 Data Memory (RAM) ...........................................................................................................................
2.5 Register File (RF) ...............................................................................................................................
11
11
11
13
15
22
3. PORTS ...........................................................................................................................................
3.1 Port 0A (P0A0-P0A3) ...........................................................................................................................
3.2 Port 0B (P0B0-P0B3) ...........................................................................................................................
3.3 Port 0C (P0C0-P0C3) ...........................................................................................................................
3.4 Port 0D (P0D0-P0D3) ...........................................................................................................................
3.5 Port 0E (P0E0-P0E3) ...........................................................................................................................
3.6 INT Pin .................................................................................................................................................
3.7 Switching Bit I/O ................................................................................................................................
3.8 Specifying Pull-up Resistor Connection .........................................................................................
25
25
25
25
25
25
26
27
28
4. CLOCK GENERATOR CIRCUIT .................................................................................................. 29
4.1 Instruction Execution Time (CPU Clock) Selection ........................................................................ 29
5. 8-BIT TIMER AND REMOTE CONTROLLER CARRIER GENERATOR CIRCUIT .....................
5.1 Configuration of 8-bit Timer (with modulo function) .....................................................................
5.2 Function of 8-bit Timer (with modulo function) ..............................................................................
5.3 Carrier Generator Circuit for Remote Controller ............................................................................
30
30
32
33
6. BASIC INTERVAL TIMER/WATCHDOG TIMER ..........................................................................
6.1 Source Clock for Basic Interval Timer .............................................................................................
6.2 Controlling Basic Interval Timer ......................................................................................................
6.3 Operation Timing for Watchdog Timer ............................................................................................
37
37
37
39
7. INTERRUPT FUNCTIONS ............................................................................................................
7.1 Interrupt Sources ...............................................................................................................................
7.2 Hardware of Interrupt Control Circuit ..............................................................................................
7.3 Interrupt Sequence ............................................................................................................................
40
40
41
44
6 Data Sheet U12643EJ2V0DS00

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
UPD17225

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC
NEC
UPD17225CT

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC
NEC
UPD17225GT

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC
NEC
UPD17225MC

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC
NEC


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