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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC755 датащи(PDF) 19 Page - Motorola, Inc |
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MPC755 датащи(HTML) 19 Page - Motorola, Inc |
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19 / 56 page  MPC755 RISC Microprocessor Hardware Specifications, Rev. 6.1 Freescale Semiconductor 19 Electrical and Thermal Characteristics Figure 7. L2CLK_OUT Output Timing Diagram 4.2.4 L2 Bus AC Specifications Table 12 provides the L2 bus interface AC timing specifications for the MPC755 as defined in Figure 8 and Figure 9 for the loading conditions described in Figure 10. Table 12. L2 Bus Interface AC Timing Specifications At recommended operating conditions (see Table 3) Parameter Symbol All Speed Grades Unit Notes Min Max L2SYNC_IN rise and fall time tL2CR, tL2CF —1.0 ns 1 Setup times: Data and parity tDVL2CH 1.2 — ns 2 Input hold times: Data and parity tDXL2CH 0— ns 2 Valid times: All outputs when L2CR[14–15] = 00 All outputs when L2CR[14–15] = 01 All outputs when L2CR[14–15] = 10 All outputs when L2CR[14–15] = 11 tL2CHOV — — — — 3.1 3.2 3.3 3.7 ns 3, 4 Output hold times: All outputs when L2CR[14–15] = 00 All outputs when L2CR[14–15] = 01 All outputs when L2CR[14–15] = 10 All outputs when L2CR[14–15] = 11 tL2CHOX 0.5 0.7 0.9 1.1 — — — — ns 3 VM = Midpoint Voltage (L2OVDD/2) L2CLK_OUTA L2CLK_OUTB L2 Differential Clock Mode L2 Single-Ended Clock Mode L2SYNC_OUT tL2CLK tCHCL L2CLK_OUTA VM tL2CR tL2CF VM VM VM L2CLK_OUTB VM VM VM VM VM tL2CLK L2SYNC_OUT VM VM VM VM VM VM VM VM tL2CSKW tCHCL |
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