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LAN9730 Scheda tecnica(PDF) 204 Page - Microchip Technology |
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LAN9730 Scheda tecnica(HTML) 204 Page - Microchip Technology |
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204 / 222 page ![]() LAN9730/LAN9730i DS00001946A-page 204 2012-2015 Microchip Technology Inc. 7.5.5 EEPROM TIMING The following specifies the EEPROM timing requirements for the device: FIGURE 7-5: EEPROM TIMING TABLE 7-17: EEPROM TIMING VALUES Symbol Description Min TYP Max Unit tckcyc EECLK cycle time 1110 1130 ns tckh EECLK high time 550 570 ns tckl EECLK low time 550 570 ns tcshckh EECS high before rising edge of EECLK 1070 ns tcklcsl EECLK falling edge to EECS low 30 ns tdvckh EEDO valid before rising edge of EECLK 550 ns tckhinvld EEDO invalid after rising edge EECLK 550 ns tdsckh EEDI setup to rising edge of EECLK 90 ns tdhckh EEDI hold after rising edge of EECLK 0 ns tcshdv EEDIO valid after EECS high (VERIFY) 600 ns tdhcsl EEDIO hold after EECS low (VERIFY) 0 ns tcsl EECS low 1070 ns EECLK EEDO EEDI EECS tcshckh EEDI (VERIFY) tckh tckl tckcyc tcklcsl tcsl tdvckh tckhinvld tdsckh tdhckh tdhcsl tcshdv |
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