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PIC18F4539-E/MLSQTP Datasheet(PDF) 270 Page - Microchip Technology |
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PIC18F4539-E/MLSQTP Datasheet(HTML) 270 Page - Microchip Technology |
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270 / 322 page ![]() PIC18FXX39 DS30485A-page 268 Preliminary 2002 Microchip Technology Inc. 23.3 AC (Timing) Characteristics 23.3.1 TIMING PARAMETER SYMBOLOGY The timing parameter symbols have been created following one of the following formats: 1. TppS2ppS 3. TCC:ST (I2C specifications only) 2. TppS 4. Ts (I2C specifications only) T F Frequency T Time Lowercase letters (pp) and their meanings: pp cc CCP1 osc OSC1 ck CLKO rd RD cs CS rw RD or WR di SDI sc SCK do SDO ss SS dt Data in t0 T0CKI io I/O port t1 T13CKI mc MCLR wr WR Uppercase letters and their meanings: S F Fall P Period HHigh R Rise I Invalid (Hi-impedance) V Valid L Low Z Hi-impedance I2C only AA output access High High BUF Bus free Low Low TCC:ST (I2C specifications only) CC HD Hold SU Setup ST DAT DATA input hold STO STOP condition STA START condition |
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