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參數資料
| 型號： | UPD1724x |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| 中文描述： | 4位單片微控制器的小型通用兩用紅外遙控遞質 |
| 文件頁數： | 1/102頁 |
| 文件大小： | 461K |
| 代理商： | UPD1724X |
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MOS INTEGRATED CIRCUIT
μ
PD17240,17241,17242,17243,17244,17245,17246
DESCRIPTION
The
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246 (hereafter called the
μ
PD17246 Subseries) are 4-
bit single-chip microcontrollers for small general-purpose infrared remote control transmitters.
This subseries employs 17K general-purpose register system architecture for the CPU, and can directly execute
operations between data memories instead of the conventional method of executing operations through an
accumulator. Moreover, all the instructions are 16-bit/1-word instructions, enabling efficient programming.
In addition, a one-time PROM model, the
μ
PD17P246, to which data can be written only once, is also available.
This product is convenient either for evaluating the
μ
PD17246 Subseries programs or for small-scale production of
application systems.
Detailed function descriptions are provided in the following user's manual. Be sure to read them before
designing.
μ
PD172
××
Subseries User's Manual: U12795E
FEATURES
Infrared remote controller carrier generator (REM output)
17K architecture: General-purpose register system
Program memory (ROM), data memory (RAM)
μ
PD17240
μ
PD17241
μ
PD17242
μ
PD17243
μ
PD17244
μ
PD17245
μ
PD17246
Program
memory (ROM) (2,048
×
16)
4 KB
8 KB
(4,096
×
16)
12 KB
(6,144
×
16)
16 KB
(8,192
×
16)
20 KB
(10,240
×
16) (12,288
×
16) (16,384
×
16)
24 KB
32 KB
Data memory
(RAM)
447
×
4 bits
8-bit timer:
Basic interval timer/watchdog timer:
Instruction execution time (can be changed in two steps)
@ f
X
= 4 MHz:
External interrupt pin (INT/P1B
0
):
I/O pins:
Supply voltage:
On-chip RAM retention detector
Low-voltage detector (mask option)
1 channel
1 channel
4
μ
s (high-speed mode)/8
μ
s (normal mode)
1
24
V
DD
= 2.0 to 3.6 V
Unless otherwise specified, the
μ
PD17246 is treated as the representative model throughout this document.
Document No. U15002EJ1V0DS00 (1st edition)
Date Published
April 2003 N CP (K)
Printed in Japan
4-BIT SINGLE-CHIP MICROCONTROLLERS
FOR SMALL GENERAL-PURPOSE INFRARED
REMOTE CONTROL TRANSMITTERS
DATA SHEET
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 products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
c
The mark shows major revised points.
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