| 전자부품 데이터시트 검색엔진 |
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TNETX4080GGP 데이터시트(PDF) 57 Page - Texas Instruments |
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TNETX4080GGP 데이터시트(HTML) 57 Page - Texas Instruments |
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57 / 64 page ![]() TNETX4080 ThunderSWITCH II™ 8-PORT 10-/100-MBIT/S ETHERNET™ SWITCH SPWS050A – AUGUST 1998 – REVISED NOVEMBER 1998 57 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 EEPROM interface For further information on EEPROM interface timing, refer to the 24C02 or 24C08 serial EEPROM data sheets. EEPROM writes (see Figure 17) NO. MIN MAX UNIT 1 tsu(EDIO:Start) Setup time, ECLK high before EDIO ↓ 383 tc 2 th(EDIO:Start) Hold time, ECLK high after EDIO ↓ 383 tc 3 th(EDIO:Data) Hold time, data after ECLK ↓ 0 tc 4 tsu(EDIO:Data) Setup time, data before ECLK ↑ 383 tc 5 tw(ECLK) Pulse duration, ECLK low during start/stop 766 tc 6 tw(ECLK) Pulse duration, ECLK high during start/stop 766 tc 7 tw(ECLK:Data) Pulse duration, ECLK high during data 383 tc 8 tw(ECLK:Data) Pulse duration, ECLK low during data 766 tc 9 fclock(ECLK) Clock frequency, ECLK 98 kHz EDIO (out) 7 8 4 2 1 3 5 6 ECLK Figure 17. EEPROM Writes EEPROM reads (see Figure 18) NO. MIN MAX UNIT 1 tsu(EDIO) Setup time, EDIO (in) before ECLK ↑ 10 ns 2 th(EDIO) Hold time, EDIO (in) after ECLK ↓ 0 ns ECLK 1 2 EDIO (in) Figure 18. EEPROM Reads |
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