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UPD17227GT-XXX Datasheet

  • UPD17227GT-XXX

  • MICROCONTROLLER|4-BIT|UPD17K CPU|CMOS|SOP|28PIN|PLASTIC

  • 383.86KB

  • 84頁

  • ETC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD17225, 17226, 17227, 17228
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR SMALL GENERAL-PURPOSE INFRARED
REMOTE CONTROL TRANSMITTER
DESCRIPTION
碌
PD17225, 17226, 17227, 17228 (hereafter called
碌
PD17225 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,
碌
PD17P218, to which data can be written only once, is also available. It is
convenient either for evaluating the
碌
PD17225 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.
碌
PD172脳脳 Subseries User's Manual: U12795E
FEATURES
鈥?Infrared remote controller carrier generator circuit (REM output)
鈥?17K architecture: General-purpose register system
鈥?Program memory (ROM), Data memory (RAM)
碌
PD17225
Program memory (ROM)
4 K bytes
(2048
脳
16)
Data memory (RAM)
碌
PD17226
8 K bytes
(4096
脳
16)
碌
PD17227
12 K bytes
(6144
脳
16)
碌
PD17228
16 K bytes
(8192
脳
16)
111
脳
4 bits
223
脳
4 bits
鈥?8-bit timer
: 1 channel
鈥?Basic internal timer/Watchdog timer : 1 channel (WDOUT output)
鈥?Instruction execution time (can be changed in two steps)
at f
X
= 4 MHz
at f
X
= 8 MHz
鈥?External interrupt pin (INT)
鈥?I/O pins
鈥?Supply voltage
: 4
碌
s (high-speed mode)/8
碌
s (ordinary mode)
: 2
碌
s (high-speed mode)/4
碌
s (ordinary mode)
: 1
: 20
: V
DD
= 2.2 to 3.6 V (at f
X
= 8 MHz (high-speed mode))
V
DD
= 2.0 to 3.6 V (at f
X
= 4 MHz (high-speed mode))
鈥?Low-voltage detector circuit (mask option)
Unless otherwise specified, the
碌
PD17225 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.
漏
1997,1999

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