CY7C63310, CY7C638xx
28. AC Characteristics (continued)
Parameter | Description |
| Conditions | Min | Typical | Max | Unit | |
USB Driver |
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TR1 | Transition Rise Time | CLOAD = 200 pF | 75 |
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| ns | ||
TR2 | Transition Rise Time | CLOAD = 600 pF |
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| 300 | ns | ||
TF1 | Transition Fall Time | CLOAD = 200 pF | 75 |
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| ns | ||
TF2 | Transition Fall Time | CLOAD = 600 pF |
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| 300 | ns | ||
TR | Rise/Fall Time Matching |
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| 80 |
| 125 | % |
VCRS | Output Signal Crossover Voltage |
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| 1.3 |
| 2.0 | V |
USB Data | Timing |
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TDRATE | Low Speed Data Rate | Average Bit Rate (1.5 Mbps ± 1.5%) | 1.4775 |
| 1.5225 | Mbps | ||
TDJR1 | Receiver Data Jitter Tolerance | To next transition |
| 75 | ns | |||
TDJR2 | Receiver Data Jitter Tolerance | To pair transition |
| 45 | ns | |||
TDEOP | Differential to EOP Transition Skew |
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| 100 | ns | |
TEOPR1 | EOP Width at Receiver | Rejects as EOP |
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| 330 | ns | ||
TEOPR2 | EOP Width at Receiver | Accept as EOP | 675 |
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| ns | ||
TEOPT | Source EOP Width |
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| 1.25 |
| 1.5 | μs |
TUDJ1 | Differential Driver Jitter | To next transition |
| 95 | ns | |||
TUDJ2 | Differential Driver Jitter | To pair transition |
| 95 | ns | |||
TLST | Width of SE0 during Diff. Transition |
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| 210 | ns |
| Mode Driver Characteristics |
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TFPS2 | SDATA/SCK Transition Fall Time |
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| 50 |
| 300 | ns |
GPIO Timing |
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TR_GPIO | Output Rise Time[8] | Measured between 10 and 90% |
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| 50 | ns | ||
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| Vdd/Vreg with 50 pF load |
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TF_GPIO | Output Fall Time[8] | Measured between 10 and 90% |
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| 15 | ns | ||
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| Vdd/Vreg with 50 pF load |
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SPI Timing |
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TSMCK | SPI Master Clock Rate | FCPUCLK/6 |
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| 2 | MHz | ||
TSSCK | SPI Slave Clock Rate |
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| 2.2 | MHz |
TSCKH | SPI Clock High Time | High for CPOL = 0, Low for CPOL = 1 | 125 |
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| ns | ||
TSCKL | SPI Clock Low Time | Low for CPOL = 0, High for CPOL = 1 | 125 |
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| ns | ||
T | Master Data Output Time[10] | SCK to data valid |
| 50 | ns | |||
MDO |
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TMDO1 | Master Data Output Time, | Time before leading SCK edge | 100 |
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| ns | ||
| First bit with CPHA = 0 |
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TMSU | Master Input Data Setup time |
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| 50 |
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| ns |
TMHD | Master Input Data Hold time |
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| 50 |
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| ns |
TSSU | Slave Input Data Setup Time |
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| 50 |
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| ns |
TSHD | Slave Input Data Hold Time |
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| 50 |
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| ns |
TSDO | Slave Data Output Time | SCK to data valid |
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| 100 | ns | ||
TSDO1 | Slave Data Output Time, | Time after | SS | LOW to data valid |
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| 100 | ns |
| First bit with CPHA = 0 |
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TSSS | Slave Select Setup Time | Before first SCK edge | 150 |
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| ns | ||
TSSH | Slave Select Hold Time | After last SCK edge | 150 |
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| ns |
Note
10. In Master mode, first bit is available 0.5 SPICLK cycle before Master clock edge available on the SCLK pin.
Document | Page 70 of 83 |
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