DESCRIPTION
The µPD17P228 is a model of the µPD17228 with a one-time PROM instead of an internal mask ROM.
Since the user can write programs to the µPD17P228, it is ideal for experimental production or small-scale production of the µPD17225, 17226, 17227 or 17228 systems.
When reading this document, also read the documents related to the µPD17225, 17226, 17227 and 17228.

FEATURES
• Pin compatible with µPD17225, 17226, 17227 and 17228 (except PROM programming function)
• Carrier generator circuit for infrared remote controller (REM output)
• 17K architecture: General-purpose register method
• Program memory (one-time PROM): 16 Kbytes (8192 × 16)
• Data memory (RAM): 223 × 4 bits
• Pull-up resistor can be connected to RESET pin
• Low-voltage detection circuit (WDOUT output)
• Supply voltage: VDD = 2.2 to 3.6 V (fx = 4 MHz: high-speed mode, 4 µs)
                            VDD = 3.0 to 3.6 V (fx = 8 MHz: high-speed mode, 2 µs)

APPLICATIONS
    Preset remote controllers, toys, and portable systems