ZHCSKS2E april 2020 – june 2023 DRA821U , DRA821U-Q1
PRODUCTION DATA
Table 7-60 and Table 7-61 present Timing requirements and Switching characteristics for MMCSD0 – High Speed DDR Mode (see Figure 7-87 and Figure 7-88).
NO. | PARAMETER | DESCRIPTION | MIN | MAX | UNIT |
---|---|---|---|---|---|
HSDDR1 | tsu(cmdV-clkH) | Setup time, MMC0_CMD valid before MMC0_CLK rising edge | 2.5 | ns | |
HSDDR2 | th(clkH-cmdV) | Hold time, MMC0_CMD valid after MMC0_CLK rising edge | 2.67 | ns | |
HSDDR3 | tsu(dV-clkV) | Setup time, MMC0_DAT[7:0] valid before MMC0_CLK transition | 0.83 | ns | |
HSDDR4 | th(clkV-dV) | Hold time, MMC0_DAT[7:0] valid after MMC0_CLK transition | 1.76 | ns |
NO. | PARAMETER | DESCRIPTION | MIN | MAX | UNIT |
---|---|---|---|---|---|
fop(clk) | Operating frequency, MMC0_CLK | 50 | MHz | ||
HSDDR5 | tc(clk) | Cycle time, MMC0_CLK | 20 | ns | |
HSDDR6 | tw(clkH) | Pulse duration, MMC0_CLK high | 9.2 | ns | |
HSDDR7 | tw(clkL) | Pulse duration, MMC0_CLK low | 9.2 | ns | |
HSDDR8 | td(clkH-cmdV) | Delay time, MMC0_CLK rising edge to MMC0_CMD transition | 3.31 | 9.8 | ns |
HSDDR9 | td(clkV-dV) | Delay time, MMC0_CLK transition to MMC0_DAT[7:0] transition | 2.81 | 6.94 | ns |