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AS1116 Datasheet(PDF) 3 Page - ams AG

Part # AS1116
Description  64 LED Dr iver wi th Detai led Er ror Detect ion
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1116 Datasheet(HTML) 3 Page - ams AG

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www.austriamicrosystems.com/LED-Driver-ICs/AS1116
Revision 1.08
2 - 23
AS1116
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
Pin Name
QSOP-24
TQFN(4x4)-24
Description
SDI
1
22
Serial-Data Input. Data is loaded into the internal 16-bit shift register on the rising edge
of pin SCL.
DIG0:DIG7
2-5, 7-10
1, 2, 4, 5, 7, 8, 23,
24
Digit Drive Lines. Eight digit drive lines that sink current from the display cathode.
GND
6
3
Ground.
LD
11
9
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.
N/C
12
6
Not Connected.
ISET
13
10
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 17
).
SCL
14
11
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.
SEGA:SEGG,
SEGDP
15-18,
20-23
12-15,
17-20
Seven Segment and Decimal Point Drive Lines. 8 seven-segment drives and
decimal point drive that source current to the display.
VDD
19
16
Positive Supply Voltage. Connect to +2.7 to +5.5V supply.
SDO
24
21
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.
-
Exposed Pad
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.
AS1116
SEG E
8
18
SEGB
14
DIG2
1
GND
3
AS1116
DIG5
5
10
12
VDD
16
SEGC
17
SEGG
15
SEGF
13
DIG3
2
DIG4
4
N/C
6
11
9
7
23
21
19
20
22
24


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