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rf-star low power consumption 2.4 ghz wlan and 5 ghz dual-band wifi module cc3235

rf-wm-3235b1 is an rf module based on ti lower-power soc cc3235sf with built-in dual-band wi-fi connectivity. it integrates a 40 mhz crystal, 32.768 khz rtc clock, rf filters, diplexer, and two physical separated on-chip mcus: arm^®cortex®-m4 mcu with a user-dedicated 256 kb of ram, an embedded 1 mb flash and an external plug-in 4 mb flash, network processor for running wi-fi and internet logical layers. it features 802.11 a/b/g/n: 2.4 ghz and 5 ghz support, 2.4 ghz coexistence with bluetooth low energy radio, improved fast scan, hostless mode for offloading template packet transmissions and application features of small size, robust connection distance, and rigid reliability.

table 1. the pin diagram of rf-wm-3235b1

pin	name	function	description
1	gnd	gnd	ground
2	gnd	gnd	ground
3	gpio10	gpio	gpio
4	gpio11	gpio	gpio
5	gpio14	gpio	gpio
6	gpio15	gpio	gpio
7	gpio16	gpio	gpio
8	gpio17	gpio	gpio
9	gpio12	gpio	gpio
10	gpio13	gpio	gpio
11	gpio22	gpio	gpio
12	jtag_tdi	tdi	jtag interface: data input
13	flash_miso	i	serial flash interface: spi data in
14	flash_csn	cs	serial flash interface: spi chip select
15	flash_clk	clk	serial flash interface: spi clock
16	gnd	gnd	ground
17	flash_mosi	o	serial flash interface: spi data out
18	jtag_tdo	tdo	jtag interface: data output
19	gpio28	gpio	gpio
20	nc	/	no connect
21	jtag_tck	tck	jtag interface: clock
22	jtag_tms	tms	jtag interface: mode select
23	sop2	sop	configuration sense-on-power
24	sop1	sop	configuration sense-on-power and 5 ghz switch control
25	gnd	gnd	ground
26	gnd	gnd	ground
27	gnd	gnd	ground
28	gnd	gnd	ground
29	gnd	gnd	ground
30	gnd	gnd	ground
31	rf_abg	rf out	rf bg band: 2.4 ghz tx, rx rf bg band: 5 ghz tx, rx
32	gnd	gnd	ground
33	nc	/	no connect
34	sop0	sop	configuration sense-on-power and 5 ghz switch control
35	nreset	reset	master chip reset input. active low input.
36	vbat_reset	reset	vbat reset input. active low input.
37	vbat1	power	power supply: 2.7 v ~ 3.6 v, recommend to 3.3 v
38	gnd	gnd	ground
39	nc	/	no connect
40	vbat2	power	power supply
41	nc	/	no connect
42	gpio30	gpio	gpio
43	gnd	gnd	ground
44	gpio0	gpio	gpio
45	nc	/	no connect
46	gpio1	gpio	gpio
47	gpio2	gpio	analog input (1.5 v max.) or gpio
48	gpio3	gpio	analog input (1.5 v max.) or gpio
49	gpio4	gpio	analog input (1.5 v max.) or gpio
50	gpio5	gpio	analog input (1.5 v max.) or gpio
51	gpio6	gpio	gpio
52	gpio7	gpio	gpio
53	gpio8	gpio	gpio
54	gpio9	gpio	gpio
55	gnd	/	thermal ground
56	gnd	/	thermal ground
57	gnd	/	thermal ground
58	gnd	/	thermal ground
59	gnd	/	thermal ground
60	gnd	/	thermal ground
61	gnd	/	thermal ground
62	gnd	/	thermal ground
63	gnd	/	thermal ground

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pin attributes

pin	name	function	description
pin1	gnd	-	ground
pin2	gnd	-	ground
pin3	gpio10	i/o	gpio
pin4	gpio11	i/o	gpio
pin5	gpio14	i/o	gpio
pin6	gpio15	i/o	gpio
pin7	gpio16	i/o	gpio
pin8	gpio17	i/o	gpio
pin9	gpio12	i/o	gpio
pin10	gpio13	i/o	gpio
pin11	gpio22	i/o	gpio
pin12	jtag_tdi	i/o	jtag tdi input. leave unconnected if not used on product
pin13	flash_spi_miso	i	external serial flash programming: spi data in
pin14	flash_spi_ncs_in	i	external serial flash programming: spi chip select (active low)
pin15	flash_spi_clk	i	external serial flash programming: spi clock
pin16	gnd	-	ground
pin17	flash_spi_mosi	o	external serial flash programming: spi data out
pin18	jtag_tdo	i/o	jtag tdo output. leave unconnected if not used on product
pin19	gpio28	i/o	gpio
pin20	nc	-	-
pin21	jtag_tck	i/o	jtag tck input. leave unconnected if not used on product.(2) an internal 100 kω pull down resistor is tied to this pin.
pin22	jtag_tms	-	jtag tms input. leave unconnected if not used on product.
pin23	sop2	-	an internal 100 kω pull down resistor is tied to this sop pin. an external 10 kω resistor is required to pull this pin high. see section 6.11.1 for sop[2:0] configuration modes.
pin24	sop1	-	an internal 100 kω pull down resistor is tied to this sop pin. an external 10 kω resistor is required to pull this pin high. see section 6.11.1 for sop[2:0] configuration modes.
pin25	gnd	-	ground
pin26	gnd	-	ground
pin27	gnd	-	ground
pin28	gnd	-	ground
pin29	gnd	-	ground
pin30	gnd	-	ground
pin31	rf_abg	i/o	ground
pin32	gnd	-	ground
pin33	nc	-	-
pin34	sop0		an internal 100 kω pull down resistor is tied to this sop pin. an external 10 kω resistor is required to pull this pin high. see section 6.11.1 for sop[2:0] configuration modes.
pin35	nreset	i	there is an internal, 100 kω, pull-up resistor option from the nreset pin to vbat_reset. note: vbat_reset is not connected to vbat1 or vbat2 within the module. the following connection schemes are recommended: • connect nreset to a switch, external controller, or host, only if nreset will be in a defined state under all operating conditions. leave vbat_reset unconnected to save power. • if nreset cannot be in a defined state under all operating conditions, connect vbat_reset to the main module power supply (vbat1 and vbat2). due to the internal pullup resistor a leakage current of 3.3 v / 100 kω is expected.
pin36	vbat_reset	-
pin37	vbat1	power	power supply for the module, must be connected to battery (2.3 v to 3.6 v)
pin38	gnd	-	ground
pin39	nc	-	-
pin40	vbat2	power	power supply for the module, must be connected to battery (2.3 v to 3.6 v)
pin41	nc	-	-
pin42	gpio30		gpio
pin43	gnd		ground
pin44	gpio30
pin45	nc	-	-
pin46	gpio1	i/o	gpio
pin47	gpio2	i/o	gpio
pin48	gpio3	i/o	gpio
pin49	gpio4	i/o	gpio
pin50	gpio5	i/o	gpio
pin51	gpio6	i/o	gpio
pin52	gpio7	i/o	gpio
pin53	gpio8	i/o	gpio
pin54	gpio9	i/o	gpio
pin55	gnd	-	thermal ground
pin56	gnd	-	thermal ground
pin57	gnd	-	thermal ground
pin58	gnd	-	thermal ground
pin59	gnd	-	thermal ground
pin60	gnd	-	thermal ground
pin61	gnd	-	thermal ground
pin62	gnd	-	thermal ground
pin63	gnd	-	thermal ground

hardware datasheet

【user manual】rf-wm-3235b1hardware datasheet

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