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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ORSPI4 датащи(PDF) 183 Page - Lattice Semiconductor |
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ORSPI4 датащи(HTML) 183 Page - Lattice Semiconductor |
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183 / 263 page  Lattice Semiconductor ORCA ORSPI4 Data Sheet 183 Table 63. Status Path Interface ORSPI4 Timing in Centered (OIF) Mode Note: This table compares the OIF Specification requirements vs. the ORSPI4 Specification. There is no OIF Specification for LVDS buffers. Figure 95. ORSPI4 Static Mode Status Signals Data Capture (Reference Point D) OIF-SPI4-02.0 Specification Requirements ORSPI4 Timing in Centered (OIF) Mode Symbol Description Min Max Min Max Units fD TDCLK/RDCLK frequency — 450 — 450 MHz fS TSCLK/RSCLK frequency — 112.5 — 112.5 MHz — TSCLK/RSCLK duty cycle 40 60 40 60 % tdia RSTAT invalid with respect to clock edge (Reference point C) — 2.5 — 0.30 ns tdib RSTAT invalid with respect to clock edge (Reference point C) — 1.0 — 0.45 ns tS Setup time for TSTAT with respect to TSCLK - LVTTL Buffers (Reference point D) 2.0 — 1.0 — ns Setup time for TSTAT with respect to TSCLK - LVDS Buffers (Reference point D) — — 1.0 — ns tH Hold time for TSTAT with respect to TSCLK - LVTTL Buffers (Reference point D) 0.5 — 0.5 — ns Hold time for TSTAT with respect to TSCLK - LVDS Buffers (Reference point D) — — 0.7 — ns Reference Point D TSTAT/ RSTAT LVTTL 0 1 D LVDS STATUS_IO_SEL TSCLK/ RSCLK LVTTL 0 1 0 1 LVDS SPI_STAM |
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