PD17P246_15 Datasheet, PDF (8/34 Pages) Renesas Technology Corp – PD17P246_15 FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER

µPD17P246
1. DIFFERENCES BETWEEN µPD17246 AND µPD17P246
The µPD17P246 is equipped with one-time PROM to which data can be written by the user instead of the internal
mask ROM (program memory) of the µPD17246.
Table 1-1 shows the differences between the µPD17246 and µPD17P246.
The CPU functions and internal hardware of the µPD17P246, 17240, 17241, 17242, 17243, 17244, 17245, and
17246 are identical. Therefore, the µPD17P246 can be used to evaluate the program developed for the µPD17240,
17241, 17242, 17243, 17244, 17245, and 17246 system. Note, however, that some of the electrical specifications
such as supply current and low-voltage detection voltage of the µPD17P246 are different from those of the
µPD17240, 17241, 17242, 17243, 17244, 17245, and 17246.
Table 1-1. Differences Between µPD17246 and µPD17P246
Item
Product Name
µPD17P246
µPD17246
Program memory
One-time PROM
Mask ROM
32 KB (16,384 × 16)
(0000H to 3FFFH)
Data memory
447 × 4 bits
Low-voltage detector^{Note 1}
Provided
Any (mask option)
VPP pin, operation mode select pin Provided
Not provided
Instruction execution time^{Note 2}
4 µs (VDD = 2.2 to 3.6 V)
4 µs (VDD = 2.0 to 3.6 V)
Supply voltage^{Note 2}
VDD = 2.2 to 3.6 V
VDD = 2.0 to 3.6 V
Package
30-pin plastic SSOP (7.62 mm (300))
Notes 1. Although the circuit configuration is identical, the electrical characteristics differ depending on the
product.
2. When fX = 4 MHz and high-speed mode operation is set.
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Data Sheet U15215EJ1V0DS