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EM78P447NAM Datasheet(PDF) 27 Page - ELAN Microelectronics Corp |
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EM78P447NAM Datasheet(HTML) 27 Page - ELAN Microelectronics Corp |
27 / 57 page ![]() EM78P447N OTP ROM OSCI EM 78P447S VCC Rext Cext Fig. 12 External RC Oscillator Mode Circuit Table 10 RC Oscillator Frequencies Cext Rext Average Fosc 5V,25 °C Average Fosc 3V,25°C 3.3k 4.32 MHz 3.56 MHz 5.1k 2.83 MHz 2.8 MHz 10k 1.62MHz 1.57 MHz 20 pF 100k 184 KHz 187 KHz 3.3k 1.39 MHz 1.35 MHz 5.1k 950 KHz 930 KHz 10k 500 KHz 490 KHz 100 pF 100k 54KHz 55 KHz 3.3k 580 KHz 550 KHz 5.1k 390 KHz 380 KHz 10k 200 KHz 200 KHz 300 pF 100k 21 KHz 21 KHz <Note> 1. Measured on DIP packages. 2. For design reference only. 4.8 CODE Option Register The EM78P447N has one CODE option word that is not a part of the normal program memory. The option bits cannot be accessed during normal program execution. Code Option Register and Customer ID Register arrangement distribution: Word 0 Word 1 Bit12~Bit0 Bit12~Bit0 This specification is subject to change without prior notice. 10.21.2004 (V1.0) 27 |
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