SWRS243 Data sheet

SWRS243B February 2020 – May 2021 CC3235MODAS , CC3235MODASF , CC3235MODS , CC3235MODSF

PRODUCTION DATA

Refer to the PDF data sheet for device specific package drawings

Figure 8-9 shows the timing diagram for the SPI slave.

Figure 8-9 SPI Slave Timing Diagram

Table 8-16 lists the timing parameters for the SPI slave.

Table 8-16 SPI Slave Timing Parameters

ITEM	NAME	DESCRIPTION	MIN	MAX	UNIT
	F⁽¹⁾	Clock frequency @ VBAT = 3.3 V		20	MHz
	F⁽¹⁾	Clock frequency @ VBAT ≤ 2.3 V		12	MHz
T2	T_clk⁽¹⁾	Clock period	50		ns
	D⁽¹⁾	Duty cycle	45%	55%
T6	t_IS⁽¹⁾	RX data setup time	4		ns
T7	t_IH⁽¹⁾	RX data hold time	4		ns
T8	t_OD⁽¹⁾	TX data output delay		20	ns
T9	t_OH⁽¹⁾	TX data hold time		24	ns

(1) Timing parameter assumes a maximum load of 20 pF at 3.3 V.