Pin assignment

TN100

4/8

10

VSSD

Supply

Power supply for digital parts

11

POnReset

Digital input

Power on reset line

12

μCVCC

Supply

Switchable power supply for external

microcontroller

13

SpiClk

Digital input

SPI clock

14

SpiSSn

Digital input

SPI slave selected

15

SpiTxD

Digital output

SPI transmit data (MISO)

16

SpiTxD

Digital Input

SPI receive data (MOSI)

17

VDDD

Supply

Power supply for digital parts

18

D0

Digital IO

Digital input or output line 0

19

D1

Digital IO

Digital input or output line 1

20

D2

Digital IO

Digital input or output line 2

21

D3

Digital IO

Digital input or output line 3

22

VDDD

Supply

Power supply for digital parts

23

μCIRQ

Digital output

Interrupt request to external microprocessor

24

VSSD

Supply

Power supply for digital parts

25

VDDD

Supply

Power supply for digital parts

26

VSSD

Supply

Power supply for digital parts

27

Tx/Rx

Digital output

Output signal to distinguish between transmit

and receive

28

VDDD

Supply

Power supply for digital parts

29

VSSD

Supply

Power supply for digital parts

30

Test

Digital IO

Pin for digital tests

31

RRef

Analog IO

Pin for external reference resistor

32

VDDA

Supply

Power supply for analog parts

33

TestRxP

LF Signal

Test pin for RX signals

34

TestRxN

LF Signal

Test pin for RX signals inverted

35

VSSA

Supply

Power supply for analog parts

36

VDDA

Supply

Power supply for analog parts

37

VDDA

Supply

Power supply for analog parts

38

VSSA

Supply

Power supply for analog parts

39

RxN

RF input

Differential receiver input (inverted)

40

RxP

RF input

Differential receiver input

41

VSSA

Supply

Power supply for analog parts

42

VSSA

Supply

Power supply for analog parts

Table 1.

Pin descriptions (continued)

Pin

Signal

Direction

Description