SER7 Datasheet, PDF (5/11 Pages) ABCircuits – Serial to Seven Segment Controller Expandable to 32 digits

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Device Address
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
ADR3
Open
Open
Open
Open
Open
Open
Open
Open
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
ADR2
Open
Open
Open
Open
Ground
Ground
Ground
Ground
Open
Open
Open
Open
Ground
Ground
Ground
Ground
ADR1A
Open
Open
Ground
Ground
Open
Open
Ground
Ground
Open
Open
Ground
Ground
Open
Open
Ground
Ground
ADR0
Open
Ground
Open
Ground
Open
Ground
Open
Ground
Open
Ground
Open
Ground
Open
Ground
Open
Ground
SEGRA, SEGRB, SEGRC, SEGRD, SEGRE, SEGRF, SEGRG, SEGRDP
SEGLA, SEGLB, SEGLC, SEGLD, SEGLE, SEGLF, SEGLG, SEGLDP
SEGR is the right hand of the two displays.
SEGL is the left hand of the two displays
If the POL pin is open or hi, this SEG outputs will be high when a segment is on.
If the POL pin is low or grounded, the SEG outputs will be low when a segment is on.
These are the eight segment outputs to each individual display SEGDP is the decimal point.
An external driver or current limiting resistor is required for each segment. If you are using only a
resistor, it must be sized to limit source current to 5 mA maximum per pin or sink current to 9 mA
per pin.
See also the segment table, and the ASCII to seven segment translation table.
VSS
Connect to system ground.
VDD
Connect to supply voltage of 2.4 to 5 volts. A .1 uF decoupling capacitor to ground is
recommended.
NOTES:
Make no connection to the NC pins. Pins 9 and 19 must be left unconnected.
Part Number SER7
Copyright © 2014 ABCircuits. Revised September 2014 Page 5 of 11