73S1209F datasheet(8/123 Pages) TERIDIAN

Part #	73S1209F

Description	Self-Contained PINpad, Smart Card Reader IC UART to ISO7816 / EMV Bridge IC

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Manufacturer	TERIDIAN [Teridian Semiconductor Corporation]

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73S1209F Data Sheet

DS_1209F_004

1 Hardware Description

1.1 Pin Description

Table 1: 73S1209F Pinout Description

Pin Name

Description

X12IN

10

8

I

Figure 26

MPU clock crystal oscillator input pin. A 1MΩ resistor is

required between pins X12IN and X12OUT.

X12OUT

11

9

O

Figure 26

MPU clock crystal oscillator output pin.

ROW (5:0)

0

1

2

3

4

5

21

22

24

34

37

38

I

Figure 32

Keypad row input sense.

COL(4:0)

0

1

2

3

4

12

13

14

16

19

O

Figure 33

Keypad column output scan pins.

USR(8:0)

0

1

2

3

4

5

6

7

8

36

35

33

31

30

29

23

20

32

24

23

22

21

20

19

14

13

IO

Figure 29

General-purpose user pins, individually configurable as

inputs or outputs or as external input interrupt ports.

SCL

5

O

Figure 28

I

2C (master mode) compatible Clock signal. Note: the

pin is configured as an open drain output. When the

I2C interface is being used, an external pull up resistor

is required. A value of 3K is recommended.

SDA

6

IO

Figure 27

I

2C (master mode) compatible data I/O. Note: this pin is

bi-directional. When the pin is configured as output, it is

an open drain output. When the I2C interface is being

used, an external pull up resistor is required. A value of

3K is recommended.

LED(1:0)

0

1

3

4

IO

Figure 34

Special output drivers, programmable pull-down current

to drive LEDs. May also be used as inputs.

RXD

17

11

I

Figure 31

Serial UART Receive data pin.

TXD

18

12

O

Figure 28

Serial UART Transmit data pin.

INT3

51

I

Figure 31

General purpose interrupt input.

8

Rev. 1.2

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73S1209F Datasheet(PDF) 8 Page - Teridian Semiconductor Corporation

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