The Manchester data stream will be decoded into a 4-bit parallel data bus, RXD[3:0]. The RXD bus is clocked out on RX_CLK rising. The LAN83C180 must detect the first 4 bits of preamble before RX_DV is set high. When RX_DV is high, any Manchester coding violation will set RX_ER high. RX_DV is reset by a continuous sequence of zeroes, or by the end-of-packet IDLE terminator (11 11 00 00). While RX_DV is low, the data on the receive nibble is always 5h.
| SYMBOL | PARAMETER | CONDITIONS | MIN | TYP | MAX | UNIT |
| V(BR)DSS VGS(TO) IDSS IGSS +V(BR)GSS RDScON) | Drain-source breakdown voltage Gate threshold voltage Zero gate voltage drain current Gate source leakage current Gate source breakdown voltage Drain-source on-state resistance | VGS = 0 V; ID = 0.25 mA; Tj = -550C VDS = VGS; ID = 1 mA Tj = 175aC Tj = -550C VDS = 30 V; VGS = 0 V; Tj = 1750C VGS = +10 V; VDS = 0 V T, = 175aC IG = +1 mA; VGS = 10 V; ID = 25 A Tj = 1750C | 30 27 2.0 1.0 16 | 3.0 0.05 0.02 15 | 4.0 4.4 10 500 1 20 18 33.5 | V V V V cCA cCA cCA V l |
| | | | | | |
a. End-point electrical paraneters shall be as specified in table II here'In. b. Steady-state life test (method 1005 0f MIL-STD-883) conditions: (1) Test condition A, B, C, or D using the circuit submitted with the certificate of compliance (see 3.5 herein). (2) TA = +1250C, minimum. (3) Test duration: 1,000 hours, except as permitted by appendix B of MIL 44-38510 and method ioos of MIL-STD-883.
