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LAN9252/ML 데이터시트(PDF) 306 Page - Microchip Technology |
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LAN9252/ML 데이터시트(HTML) 306 Page - Microchip Technology |
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306 / 329 page ![]() LAN9252 DS00001909A-page 306 2015 Microchip Technology Inc. 17.1.1 JTAG TIMING REQUIREMENTS This section specifies the JTAG timing of the device. Note: Timing values are with respect to an equivalent test load of 25 pF. FIGURE 17-1: JTAG TIMING TABLE 17-2: JTAG TIMING VALUES Symbol Description Min Max Units Notes ttckp TCK clock period 40 ns ttckhl TCK clock high/low time ttckp*0.4 ttckp*0.6 ns tsu TDI, TMS setup to TCK rising edge 5 ns th TDI, TMS hold from TCK rising edge 5 ns tdov TDO output valid from TCK falling edge 15 ns tdoinvld TDO output invalid from TCK falling edge 0 ns TCK (Input) TDI, TMS (Inputs) ttckhl ttckp ttckhl tsu th tdov TDO (Output) tdoinvld |
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