AS1115 View Datasheet(PDF) - austriamicrosystems AG
Part Name
Description
Manufacturer
AS1115 Datasheet PDF : 24 Pages
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AS1115
Datasheet - Pinout
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
AS1115
24 23 22 21 20 19
DIG2 1
18 SEG E
DIG3 2
17 SEGC
GND 3
DIG4 4
AS1115
16 VDD
15 SEGG
DIG5 5
DIG6 6
Exposed
Pad
14 SEGB
13 SEGF
7 8 9 10 11 12
Pin Descriptions
Table 1. Pin Descriptions
Pin
Name
SDA
QSOP-24
1
DIG0:DIG7 2-5, 7-10
GND
6
KEYA
11
KEYB
12
ISET
13
SCL
IRQ
SEGA:SEGG
, SEGDP
VDD
14
24
15-18,
20-23
19
-
TQFN(4x4)-24
22
1, 2, 4, 5, 6, 7,
23, 24
3
8
9
10
11
21
12-15, 17-20
16
Exposed Pad
Description
Serial-Data I/O. Open drain digital I/O I²C data pin.
Digit Drive Lines. Eight digit drive lines that sink current from the display
common cathode. Keyscan detection optional, but must be polled by the
µProzessor.
Ground.
Keyscan Input. Keyscan lines for key readback. Can be used for self-
adressing.
Keyscan Input. Keyscan lines for key readback.
Set Segment Current. Connect to VDD or a reference voltage through
RSET to set the peak segment current (see Selecting RSET Resistor
Value and Using External Drivers on page 19).
Serial-Clock Input. 3.4MHz maximum rate.
Interupt Request Output. Open drain 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.
Exposed Pad. This pin also functions as a heat sink. Solder it to a large
pad or to the circuit-board ground plane to maximize power dissipation.
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Revision 1.03
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