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SER7 Datasheet, PDF (2/11 Pages) ABCircuits – Serial to Seven Segment Controller Expandable to 32 digits
◁
Turning Ideas Into Reality
ABCircuits www.abcircuits.com POB 123 New Hill NC 27562 (919) 290-7104
Example Circuits – RS-232 display
VCC
VCC
SER7
U2
SEE NOTES
.1
1 C1+
3 C1-
V+ 2
VCC
.1
.1
4 C2+
5
C2-
V- 6
RS232
.1
DB9S
1
28
19
9
VDD
NC
NC
24 SIN-
SEGLDP
SEGLG
SEGLF
SEGLE
SEGLD
SEGLC
SEGLB
SEGLA
5
23
6
22
7
21
8
20
11 T1in
10 T2in
12
R1out
9 R2out
T1out 14
T2out 7
13
R1in
R2in 8
2
3
4
TXD
RXD
5
6
GND
7
8
89
26
3
ADR3
25
4
ADR2
ADR1
ADR0
27
2
1
14
POL
DP
JUST
VSS
SEGRDP
SEGRG
10
18
11
SEGRF
SEGRE
SEGRD
SEGRC
SEGRB
SEGRA
17
12
16
13
15
LEFT COMMON
ANODE DISPLAY VCC
DP
G
FF
E
D
CE
B
A
A COM
B
G
C
D
RIGHT COMMON
ANODE DISPLAY VCC
DP
G
FF
E
D
CE
B
A
A COM
B
G
C
D
U2= MAX232 FOR 5V RS232
U2= MAX3232 FOR 3V RS232
Example Circuits – RS-485 display
VCC
4.7K
U2
1 RO
2 -RE
3
DE
4
DI
VCC
VCC 8
-DO/-RI 7
6
DO / RI
5
GND
RS485
U2 75176 FOR 5V
U2 MAX3485 FOR 3.3V
VCC
28
19
9
VDD
NC
NC
24 SIN-
SER7
SEGLDP
5
23
SEGLG 6
SEGLF 22
SEGLE 7
SEGLD
SEGLC
21
8
SEGLB
SEGLA
20
26
3
ADR3
25 ADR2
4 ADR1
ADR0
27
2 POL
1 DP
14 JUST
VSS
10
SEGRDP 18
SEGRG
SEGRF
11
17
SEGRE 12
SEGRD 16
SEGRC 13
SEGRB 15
SEGRA
Example Circuits – USB display
.01 BEAD .1 4.7
VCC
.1
FT232-SSOP
USB
1
16
2
3
15
4
5
CASE
19
27
28
8
24
REFER TO FT232 DATASHEET
FOR MORE DETAILS
USBM
USBP
-RST
OSCI
OSCO
NC
NC
1
TXD
RXD
DTR
-CTS
RTS
RI
DSR
DCD
CBUS0
CBUS1
CBUS2
CBUS3
CBUS4
5
2
11
3
6
9
10
23
22
13
14
12
VCC
28
19
9
VDD
NC
NC
24 SIN-
SER7
SEGLDP
5
23
SEGLG
SEGLF
6
22
SEGLE
SEGLD
SEGLC
SEGLB
SEGLA
7
21
8
20
26
3
25
4
ADR3
ADR2
ADR1
ADR0
27
2
1
POL
DP
14
JUST
VSS
SEGRDP
SEGRG
SEGRF
SEGRE
10
18
11
17
12
SEGRD
SEGRC
16
13
SEGRB
SEGRA
15
LEFT COMMON
ANODE
DISPLAY
VCC
DP
A COM
G
FF
B
E
G
D
C
B
A
E
D
C
RIGHT COMMON
ANODE DISPLAY VCC
DP
G
FF
E
D
C
B
E
A
A COM
B
G
C
D
LEFT COMMON
ANODE
VCC
DISPLAY
DP
A COM
G
FF
B
E
G
D
CE
C
B
D
A
RIGHT COMMON
ANODE DISPLAY VCC
DP
G
FF
E
D
CE
B
A
A COM
B
G
C
D
Part Number SER7
Copyright © 2014 ABCircuits. Revised September 2014 Page 2 of 11
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