PD17225_15 Datasheet, PDF (78/86 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

µPD17225, 17226, 17227, 17228
APPENDIX A. DIFFERENCES AMONG µPD17225, 17226, 17227, 17228 AND µPD17P218
µPD17P218 is equipped with PROM to which data can be written by the user instead of the internal mask ROM
(program memory) of the µPD17228.
Table A-1 shows the differences between the µPD17225, 17226, 17227, 17228 and µPD17P218.
The differences among these five models are the program memory and mask option, and their CPU functions and
internal hardware are identical. Therefore, the µPD17P218 can be used to evaluate the program developed for the
µPD17225, 17226, 17227, and 17228 system. Note, however, that some of the electrical specifications such
as supply current and low-voltage detection voltage of the µPD17P218 are different from those of the
µPD17225, 17226, 17227, and 17228.
Table A-1. Differences among µPD17225, 17226, 17227, 17228 and µPD17P218
Product Name µPD17P218
µPD17225
µPD17226
µPD17227
µPD17228
Item
Program Memory
One-time PROM
Mask ROM
16 K bytes
(8192 × 16)
(0000H-1FFFH)
4 K bytes
(2048 × 16)
(0000H-07FFH)
8 K bytes
(4096 × 16)
(0000H-0FFFH)
12 K bytes
(6144 × 16)
(0000H-17FFH)
16 K bytes
(8192 × 16)
(0000H-1FFFH)
Data Memory
223 × 4 bits
111 × 4 bits
223 × 4 bits
Pull-Up Resistor of RESET Pin
Low-Voltage Detector Circuit^Note
Provided
Provided
Any (mask option)
Any (mask option)
VPP Pin, Operation Mode Select Pin
Provided
Not provided
Handling of WDOUT Pin When Not Used Connect to GND
Connect to VDD via resistor
Instruction Execution Time (TCY)
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)
2 µs (VDD = 2.2 to 3.6 V)
4 µs (VDD = 2.0 to 3.6 V)
Operation When P0C, P0D Are Standby
Retain output level immediately before standby mode
Supply Voltage
VDD = 2.0 to 5.5 V
VDD = 2.0 to 3.6 V
Package
28-pin plastic SOP (375 mil)
28-pin plastic shrink DIP (400 mil)
30-pin plastic shrink SOP (300 mil)
Note Although the circuit configuration is identical, its electrical characteristics differ depending on the product.
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Data Sheet U12643EJ2V0DS00