AS1116
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
SEGD
SCL
SEGDP
18
SEG E
17
SEGC
16
VDD
15
SEGG
14
SEGB
13
SEGF
7
8
9
10 11 12
DIG1
DIG0
22 SEGDP
21 SEG E
18 SEGG
23 SEGD
20 SEGC
17 SEGB
15 SEGA
16 SEGF
24 SDO
14 SCL
19 V
DD
13 I
SET
24 23 22 21 20 19
DIG2
1
DIG3
2
GND
3
DIG4
4
DIG5
5
N/C
6
AS1116
DIG7 10
DIG0 2
DIG1 3
DIG2 4
DIG3 5
GND 6
DIG4 7
DIG5 8
DIG6 9
N/C 12
SDI 1
LD 11
AS1116
SDO
ISET
SDI
Pin Descriptions
Table 1. Pin Descriptions
Pin
Name
SDI
DIG0:DIG7
GND
LD
N/C
I
SET
QSOP-24
1
2-5, 7-10
6
11
12
13
TQFN(4x4)-24
22
1, 2, 4, 5, 7, 8,
23, 24
3
9
6
10
Description
Serial-Data Input.
Data is loaded into the internal 16-bit shift register
on the rising edge of pin SCL.
Digit Drive Lines.
Eight digit drive lines that sink current from the
display cathode.
Ground.
Load.
Serial Data is loaded into the shift register while this pin is low.
The last 16 bits of serial data are latched on the rising edge of this pin.
Not Connected.
Set Segment Current.
Connect to V
DD
or a reference voltage through
R
SET
to set the peak segment current (see
Serial-Clock Input.
10MHz maximum rate. Data is shifted into the
internal shift register on the rising edge of this pin. Data is clocked out of
pin SDO on the rising edge of this pin.
Seven Segment and Decimal Point Drive Lines.
8 seven-segment
drives and decimal point drive that source current to the display.
Positive Supply Voltage.
Connect to +2.7 to +5.5V supply.
Serial-Data Output.
The data into pin SDI is valid at pin SDO 16 clock
cycles later. This pin is used to daisy-chain several devices and is never
high-impedance.
SCL
SEGA:SEG
G, SEGDP
V
DD
SDO
14
15-18,
20-23
19
24
11
12-15,
17-20
16
21
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Revision 1.04
SEGA
DIG6
DIG7
LD
2 - 20
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
