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PCF88331 Folha de dados(PDF) 91 Page - NXP Semiconductors |
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PCF88331 Folha de dados(HTML) 91 Page - NXP Semiconductors |
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91 / 112 page ![]() This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... Notes 1. X = don’t care. For hexadecimal representation, don’t care bits are assumed to be logic 0. 2. The chip stays in shift operation as long as D/C is logic 1. 3. When VCBW = 1 the VC buffer is switched to a weak buffer. Default is VCBW = 0, where the VC buffer is powerful. To save power a capacitor could be connected to VC pad. Depending on the application it might be advantageous or even necessary to program VCBW = 1. 12 wait for 50 ms until OTP cells are programmed 13 0 1 111000 0 F0 disable programming 1 X X 0 0 1 X 0 1 09 ORA = 001; OPE = 0; CALMM = 1 14 repeat steps 10 to 13 for rows 2 to 6 15 0 1 111000 0 F0 exit CALMM mode 1 X X 0 0 0 X 0 0 00 ORA = 000; OPE = 0; CALMM = 0 16 set VOTP(gate) =0V; VOTP(drain) =0V STEP D/C COMMAND BYTE(1) ADDR DESCRIPTION 7 654321 0 |
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