Turning Ideas Into Reality

ABCircuits www.abcircuits.com POB 123 New Hill NC 27562 (919) 290-7104

Part Number SIO7

Copyright © 2014 ABCircuits. Revised September 2014 Page 3 of 7

OUTPUT A5

INPUT A0

OUTPUT A2

OUTPUT A0

OUTPUT A6

.01

.1

INPUT A6

USB

1

2

3

4

5

REFER TO FT232 DATASHEET

FOR MORE DETAILS

VCC

4.7

INPUT A1

OUTPUT A4

BEAD

INPUT A2

.1

7 BITS INPUT/OUTPUT USB

OUTPUT A3

INPUT A5

SIO7

11

5

12

13

14

15

1

2

3

4

6

7

9

10

18

8

16

19

20

17

IA0

NC

IA2

IA4

IA6

NC

SIN-

OA5

OA3

OA1

SOUT-

IA5

IA1

VSS

OA4

IA3

OA0

OA6

VDD

OA2

VCC

FT232-SSOP

14

13

22

23

11

2

5

1

19

16

15

8

24

27

28

3

6

9

10

12

CBUS3

CBUS2

CBUS1

CBUS0

-CTS

DTR

RXD

TXD

-RST

USBM

USBP

NC

NC

OSCI

OSCO

RTS

RI

DSR

DCD

CBUS4

OUTPUT A1

INPUT A4

CASE

INPUT A3

Connection Diagram

SIO7

11

5

12

13

14

15

1

2

3

4

6

7

9

10

18

8

16

19

20

17

IA0

NC

IA2

IA4

IA6

NC

SIN-

OA5

OA3

OA1

SOUT-

IA5

IA1

VSS

OA4

IA3

OA0

OA6

VDD

OA2

Pin Description

Pin #

Description

Pin #

Description

1

SIN-

20

VDD

2

OA5

19

OA6

3

OA3

18

OA4

4

OA1

17

OA2

5

NC

16

OA0

6

SOUT-

15

NC

7

IA5

14

IA6

8

IA3

13

IA4

9

IA1

12

IA2

10

VSS

21

IA0

OA0-6

These output bits are set when a byte is received on the SIN- pin, if bit 8 is a zero, otherwise they

do not change. Output drivers may be required for high power loads.

SIN-

This is the serial input pin. It may be tied directly to the UART transmitter output of your UART or

microprocessor; to a RS -232 receiver such as the MAX232; an Ethernet interface such as the

Lantronix Xport; or a USB IC such as the FT232. This pin is high in the idle state, the input

format is 8 bits, 1 stop, no parity at 9600 BPS. Other formats and baud rates are available,

please contact the factory for information. Bit 8 must be received as a zero or the byte will be

ignored. The byte received on this pin will be transferred to the OA0-6 pins.