GND

GND

GND

AVDD4

GND

BR3/FAST SPI

AVDD1

R_BIAS

DVDD2

AVDD5

XOSC_Q1

CC2570/CC2571

RHA Package

(TopView)

BR2/SCLK

TxD/SOUT

BR1/SFLOW

RxD/SIN

RF_N

RF_P

AVDD3

XOSC_Q2

GND

(GroundPad)

30

1

29

2

28

3

27

4

26

5

25

6

24

22

7

9

23

21

8

10

18

20

33

31

17

19

34

32

16

35

15

36

14

37

13

38

12

39

11

40

AVDD2

P0076-11

CC2570

CC2571

www.ti.com

SWRS095A

– FEBRUARY 2011 – REVISED MARCH 2011

DEVICE INFORMATION

PIN ASSIGNMENT

NOTE: The exposed ground pad must be connected to a solid ground plane, as this is the ground connection for the

device.

PIN FUNCTIONS

PIN

DIRECTION

DESCRIPTION

NAME

NO.

AVDD1

28

AVDD2

27

AVDD3

24

AVDD4

29

AVDD5

21

AVDD6

31

Serial communication pin.

BR1/SFLOW

8

IN/IN

Synchronous: SFLOW (bit- or byte-mode selection

– see Table 1)

Asynchronous: Baud-rate configuration pin (see Table 2)

Serial communication pin

BR2/SCLK

7

IN/OUT

Synchronous: SCLK (SPI master clock out)

Asynchronous: Baud-rate configuration pin (see Table 2)

Serial baud rate selection

Synchronous: FAST SPI (selects fast SPI clock)

BR3/FAST SPI

9

IN

Asynchronous: BR3 (baud-rate configuration pin for asynchronous serial communication

(see Table 2).

Copyright

© 2011, Texas Instruments Incorporated

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