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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM79C930VCW датащи(PDF) 145 Page - Advanced Micro Devices |
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AM79C930VCW датащи(HTML) 145 Page - Advanced Micro Devices |
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145 / 161 page  P R E L I M I N A R Y AMD 145 Am79C930 3.3 V TAI INTERFACE AC CHARACTERISTICS Parameter Symbol Parameter Description Test Conditions Min Max Unit tCLKIN CLKIN Period 50 ns tCLIN CLKIN Low time 22 ns tCHIN CLKIN High time 22 ns tINHL CLKIN Fall time Note 8 3 ns tINLH CLKIN Rise time Note 8 3 ns tRXC RXC Period Note 5 1000 ns tCLRX RXC Low time Note 5 480 ns tCHRX RXC High time Note 5 480 ns tRXHL RXC Fall time Note 8 20 ns tRXLH RXC Rise time Note 8 20 ns tTXC TXC Period Notes 1, 5, 7 1000 ns tCLTX TXC Low time Notes 1, 5, 7 495 ns tCHTX TXC High time Notes 1, 5, 7 495 ns tTXHL TXC Fall time Notes 1, 8 5 ns tTXLH TXC Rise time Notes 1, 8 5 ns tTXCO TXC Period Notes 2, 7 1000 ns tCLTXO TXC Low time Notes 2, 7 585 ns tCHTXO TXC High time Notes 2, 7 385 ns tTXHLO TXC Fall time Notes 2, 8 15 ns tTXLHO TXC Rise time Notes 2, 8 15 ns tRXDS RXD setup time to RXC ↑ Note 6 110 ns tRXDH RXD hold time from RXC ↑ Note 6 10 ns tTXDD TXD delay from TXC ↓ Notes 1, 3 10 200 ns tTXDS TXD setup time to TXC ↑ Notes 2, 4 TCLTX-165 ns tTXDH TXD hold time from TXC ↑ Notes 2, 4 TCHTX ns tTXDV TXD delay from TXC ↓ Notes 2, 3 0 150 ns Notes: 1. Only applicable when TXC has been configured as an INPUT. 2. Only applicable when TXC has been configured as an OUTPUT. 3. MIN value not tested. 4. Parameter calculated from other parameters. 5. Clock period must correlate to data rate as specified in DR bits of TCR30. Note that data rate is a function of DR and TCLKIN and CLKGT20 bit of MIR9. 6. The values for these parameters are given for the case with CLKP = 0 (TCR2[4:0]). For nonzero values of CLKP, use the following formulas: If CLKGT20 = 0 (MIR9[7]), tRXDSmin = 110–CLKP X TCLKIN tRXDHmin = 10+CLKP X TCLKIN If CLKGT20 = 1 (MIR9[7]), tRXDSmin = 110–CLKP X TCLKIN X 2 tRXDHmin = 10+CLKP X TCLKIN X 2 7. Values given are for data rate of 1Mb/s. For other data rates, tTXC is 1/DR, where DR = data rate in Hertz, tCLTX is 60% of TTXC minus TTXHL, tCHTX is 40% of TTXC minus TTXHL, tTXCO is 1/DR, where DR = data rate in Hertz, tCLTXO is 60% of TTXCO minus TTXHLO, tCHTXO is 40% of TTXCO minus TTXHLO, tTXHLO is 15 ns, regardless of DR value, tTXLHO is 15 ns, regardless of DR value. 8. Parameter not included in the production test. |
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