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STR750FV1 데이터시트(PDF) 65 Page - STMicroelectronics |
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STR750FV1 데이터시트(HTML) 65 Page - STMicroelectronics |
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65 / 84 page ![]() STR750Fxx STR751Fxx STR752Fxx STR755Fxx Electrical parameters 65/84 SSP synchronous serial peripheral in slave mode (SPI or TI mode) Subject to general operating conditions with CL ≈ 45 pF Figure 33. SPI configuration, slave mode with CPHA=0, single transfer Table 39. SSP slave mode characteristics(1) 1. Data based on characterisation results, not tested in production. Symbol Parameter Conditions Min Max Unit fSCK SPI clock frequency SSP0 2.66 MHz (fPLCK/12) MHz SSP1 tsu(NSS) NSS input setup time w.r.t SCK first edge SSP0 0 ns SSP1 0 th(NSS) NSS input hold time w.r.t SCK last edge SSP0 tPCLK+15ns SSP1 tPCLK+15ns tNSSLQV NSS low to Data Output MISO valid time SSP0 2tPCLK 3tPCLK+30 ns SSP1 2tPCLK 3tPCLK+30 ns tNSSLQZ NSS low to Data Output MISO invalid time SSP0 2tPCLK 3tPCLK+15 ns SSP1 2tPCLK 3tPCLK+15 ns tSCKQV SCK trigger edge to data output MISO valid time SSP0 15 SSP1 30 tSCKQX SCK trigger edge to data output MISO invalid time SSP0 2tPCLK SSP1 2tPCLK tsu(MOSI) MOSI setup time w.r.t SCK sampling edge SSP0 0 SSP1 0 th(MOSI) MOSI hold time w.r.t SCK sampling edge SSP0 3tPCLK+15 ns SSP1 3tPCLK+15 ns NSS INPUT CPHA=0 MOSI INPUT MISO OUTPUT CPHA=0 tc(SCK) tw(SCKH) tw(SCKL) tr(SCK) tf(SCK) tSCKQV(MISO) tsu(SI) th(SI) MSB OUT MSB IN BIT OUT LSB IN LSB OUT CPOL=0 CPOL=1 tsu(NSS) th(NSS) tSCKQX(MISO) BIT1 IN sample edge trigger edge trigger edge tNSSHQZ z tNSSLQV sample edge z DONT CARE DONT CARE |
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