SWRS245B December 2021 – December 2023 AM2732 , AM2732-Q1
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The following tables and figures present timing requirements and switching characteristics for SPI – Master Mode.
NO. | PARAMETER | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
1 | tc(SPC)M | Cycle time, SPICLK(2) | 40 | 256tc(VCLK) | ns | ||
2 | tw(SPCH)M | Pulse duration, SPICLK high (clock polarity = 0) | 0.5tc(SPC)M – 4 | 0.5tc(SPC)M + 4 | ns | ||
tw(SPCL)M | Pulse duration, SPICLK low (clock polarity = 1) | 0.5tc(SPC)M – 4 | 0.5tc(SPC)M + 4 | ||||
3 | tw(SPCL)M | Pulse duration, SPICLK low (clock polarity = 0) | 0.5tc(SPC)M – 4 | 0.5tc(SPC)M + 4 | ns | ||
tw(SPCH)M | Pulse duration, SPICLK high (clock polarity = 1) | 0.5tc(SPC)M – 4 | 0.5tc(SPC)M + 4 | ||||
4 | td(SPCH-SIMO)M | Delay time, SPISIMO valid before SPICLK low, (clock polarity = 0) | 0.5tc(SPC)M – 13 | ns | |||
td(SPCL-SIMO)M | Delay time, SPISIMO valid before SPICLK high, (clock polarity = 1) | 0.5tc(SPC)M – 13 | |||||
5 | tv(SPCL-SIMO)M | Valid time, SPISIMO data valid after SPICLK low, (clock polarity = 0) | 0.5tc(SPC)M – 10.5 | ns | |||
tv(SPCH-SIMO)M | Valid time, SPISIMO data valid after SPICLK high, (clock polarity = 1) | 0.5tc(SPC)M – 10.5 | |||||
6 | tC2TDELAY | Setup time CS active until SPICLK high (clock polarity = 0)(5) | CSHOLD = 0 | (C2TDELAY+2)*tc(VCLK) – 7.5 | (C2TDELAY+2) * tc(VCLK) + 7 | ns | |
CSHOLD = 1 | (C2TDELAY +3) * tc(VCLK) – 7.5 | (C2TDELAY+3) * tc(VCLK) + 7 | |||||
Setup time CS active until SPICLK
low (clock polarity = 1)(5) | CSHOLD = 0 | (C2TDELAY+2)*tc(VCLK) – 7.5 | (C2TDELAY+2) * tc(VCLK) + 7 | ||||
CSHOLD = 1 | (C2TDELAY +3) * tc(VCLK) – 7.5 | (C2TDELAY+3) * tc(VCLK) + 7 | |||||
7 | tT2CDELAY | Hold time, SPICLK low until CS inactive (clock polarity = 0)(5) | 0.5*tc(SPC)M + (T2CDELAY + 1) *tc(VCLK) – 7 | 0.5*tc(SPC)M + (T2CDELAY + 1) * tc(VCLK) + 7.5 | ns | ||
Hold time, SPICLK high until CS inactive (clock polarity = 1)(5) | 0.5*tc(SPC)M + (T2CDELAY + 1) *tc(VCLK) – 7 | 0.5*tc(SPC)M + (T2CDELAY + 1) * tc(VCLK) + 7.5 |
NO. | PARAMETER | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
8 | tsu(SOMI-SPCL)M | Setup time,
SPISOMI before SPICLK low (clock polarity = 0)(4) |
5 | ns | |||
tsu(SOMI-SPCH)M | Setup time,
SPISOMI before SPICLK high (clock polarity = 1)(4) |
5 | |||||
9 | th(SPCL-SOMI)M | Hold time,
SPISOMI data valid after SPICLK low (clock polarity = 0)(4) |
3 | ns | |||
th(SPCH-SOMI)M | Hold time,
SPISOMI data valid after SPICLK high (clock polarity = 1)(4) |
3 |