Document
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)
µPD17225
Program memory (ROM) 4 K bytes (2048 × 16) Data memory (RAM)
µPD17226
8 K bytes (4096 × 16)
µPD17227
12 K bytes (6144 × 16)
µPD17228
16 K bytes (8192 × 16)
111 × 4 bits
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 at fX = 8 MHz • External interrupt pin (INT) • I/O pins • Supply voltage : 4 µs (high-speed mode)/8 µs (ordinary mode) : 2 µs (high-speed mode)/4 µs (ordinary mode) : 1 : 20 : 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
µPD17225, 17226, 17227, 17228
APPLICATION
Preset remote controllers, toys, portable systems, etc.
ORDERING INFORMATION
Part Number Package 28-pin plastic shrink DIP (400 mil) 28-pin plastic SOP (375 mil) 30-pin plastic shrink SOP (300 mil) 28-pin plastic shrink DIP (400 mil) 28-pin plastic SOP (375 mil) 30-pin plastic shrink SOP (300 mil) 28-pin plastic shrink DIP (400 mil) 28-pin plastic SOP (375 mil) 30-pin plastic shrink SOP (300 mil) 28-pin plastic shrink DIP (400 mil) 28-pin plastic SOP (375 mil) 30-pin plastic shrink SOP (300 mil)
µPD17225CT-××× µPD17225GT-××× µPD17225MC-×××-5A4 µPD17226CT-××× µPD17226GT-××× µPD17226MC-×××-5A4 µPD17227CT-××× µPD17227GT-××× µPD17227MC-×××-5A4 µPD17228CT-××× µPD17228GT-××× µPD17228MC-×××-5A4
Remark ××× indicates ROM code suffix.
DIFFERENCE BETWEEN µPD17225 SUBSERIES AND µPD17215 SUBSERIES
Item Supply Voltage Instruction Execution Time (tCY)
µPD17225 Subseries
VDD = 2.0 to 3.6 V 2 µs (VDD = 2.2 to 3.6 V) 4 µs (VDD = 2.0 to 3.6 V) Connected to RESET pin or VDD via resistor (when not used)
µPD17215 Subseries
VDD = 2.0 to 5.5 V 2 µs (VDD = 3.5 to 5.5 V) 4 µs (VDD = 2.2 to 5.5 V) 8 µs (VDD = 2.0 to 5.5 V) Connected to RESET pin or GND (when not used)
WDOUT Pin
Connection of WDOUT pin differs between µPD17P218 and µPD17225, 17226, 17227, and 17228 when OTP is evaluated on µPD17225 subseries board and when WDOUT pin is not used. When µPD17P218 is used, malfunctioning does not occur even when WDOUT pin is pulled up, though connection can be changed by using a jumper switch on the external board. Others Supply voltage, low-voltage detection voltage, oscillator characteristics, and noise characteristics differ. Although µPD17P218 is used as one-time PROM for evaluation for both subseries, µPD17P218 cannot be used to evaluate the low-voltage high-speed operation of the µPD17225 subseries.
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Data Sheet U12643EJ2V0DS00
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 27 26 25 24 23 22 21 20 19 18 17 16 15
P0D 1 P0D 0 P0C 3 P0C 2 P0C 1 P0C 0 P0B 3 P0B 2 P0B 1 P0B 0 P0A 3 P0A 2 P0A 1 P0A 0
Data Sheet U12643EJ2V0DS00
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µPD17225, 17226, 17227, 17228
• 30-pin plastic shrink SOP (300 mil)
µPD17225MC-×××-5A4, µPD17226MC-×××-5A4, µPD17227MC-×××-5A4, µPD17228MC-×××-5A4
P0D.