TNETX3270
ThunderSWITCH 24/3 ETHERNET SWITCH
WITH 24 10-MBIT/S PORTS AND 3 10-/100-MBIT/S PORTS
SPWS043B ± NOVEMBER 1997 ± REVISED APRIL 1999
EEPROM interface
operating characteristics over recommended operating conditions (see Figure 21)
NO. |
| PARAMETER | TNETX3150 | TNETX3150A | UNIT |
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| MIN MAX | MIN MAX | |||
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| fclock (ECLK) | Clock frequency, ECLK | 98 | 98 | kHz |
1 | td (ECLKH±EDIOL) | Delay time, from ECLK↑ to EDIO↓ (see Note 9) | 5 | 5 | μs |
2 | td (EDIOL±ECLKL) | Delay time, from EDIO↓ to ECLK↓ (see Note 9) | 5 | 5 | μs |
3 | td (ECLKL±EDIOX) | Delay time, from ECLK↓ to EDIO changing (see Note 10) | 0 | 0 | μs |
4 | td (EDIOV±ECLKH) | Delay time, from EDIO valid output to ECLK↑ | 0 | 0 | μs |
5 | td (ECLKL±EDIOV) | Delay time, from ECLK↓ to EDIO valid | 0 | 0 | μs |
6 | td (ECLKL±EDIOX) | Delay time, from ECLK↓ to EDIO changing (see Note 11) | 0 | 0 | μs |
7 | td (ECLKH±EDIOX) | Delay time, from ECLK↑ to EDIO invalid | 5 | 5 | μs |
8 | td (EDIOV±ECLKH) | Delay time, from EDIO valid input to ECLK↑ | 10 | 10 | μs |
NOTES: 9. This is a start condition delay time during ECLK high.
10.This is a
11.This is a
ECLK
(output)
1
EDIO (output)
EDIO (input)
2
Valid
5
8 
Valid
4
7
3
Valid
6
Valid
Figure 21. EEPROM
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 | 61 |