AS1108
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
V
DD
= 2.7V to 5.5V, R
SET
= 9.53kΩ±1%, T
AMB
= T
MIN
to T
MAX
(unless otherwise specified). All limits are guaranteed.
The parameters with min and max values are guaranteed with production tests or SQC (Statistical Qualification Con-
trol) methods.
Table 3. Electrical Characteristics
Parameter
Operating Temperature Range
Operating Supply Voltage
Shutdown Supply Current
Operating Supply Current
Display Scan Rate
Digit Drive Sink Current
Segment Drive Source Current
Digit Drive Source Current
Segment Drive Current Matching
Segment Drive Sink Current
Symbol
T
AMB
V
DD
I
DDSD
I
DD
f
OSC
I
DIGIT
I
SEG
∆I
SEG
I
DIGIT
I
SEG
All digital inputs at V
DD
or GND,
T
AMB
= +25ºC
R
SET
= open circuit.
All segments and decimal point
on; I
SEG
= -40mA.
4 digits scanned
V
OUT
= 0.65V
V
DD
= 5.0V, V
OUT
= (V
DD
-1V)
330
Conditions
Min
0
2.7
Typ
5.0
Max
+70
5.5
10
1
Unit
°
C
V
1000
320
-30
-2
5
hn
ic a
al m
co s
A
nt G
en
ts
til
-40
3.0
Digit off, V
DIGIT
= (V
DD
- 0.3V)
Segment off, V
SEG
= 0.3V
t
SLOWBLINK
t
FASTBLINK
0.64
0.32
49.9
1
0.5
50
Symbol
I
IH
, I
IL
V
IH
V
IL
Conditions
V
IN
= 0V or V
DD
Min
-1
0.7 x V
DD
Typ
Output High Voltage
Output Low Voltage
Hysteresis Voltage
V
OH
V
OL
∆V
I
V
DD
= 5.0V ± 10%
V
DD
= 3.0V ± 10%
DOUT, I
SOURCE
= -1mA,
V
DD
= 5.0V ± 10%
DOUT, I
SOURCE
= -1mA,
V
DD
= 3.0V ± 10%
DOUT, I
SINK
= 1.6mA
DIN, CLK, LOAD/CSN
V
DD
- 1
V
DD
- 0.5
1
Revision 2.13
Slow Segment Blink Period (ON
phase, Internal Oscillator)
Fast Segment Blink Period
(ON phase, Internal Oscillator)
Fast or Slow Segment Blink Duty
Cycle (Guaranteed by design)
Table 4. Logic Inputs/Outputs Characteristics
Parameter
Input Current DIN, CLK, LOAD/CSN
Logic High Input Voltage
Logic Low Input Voltage
Te
c
lv
1600
2600
-45
Hz
mA
%
mA
mA
s
s
%
mA
1.65
0.83
50.1
Max
1
0.8
0.6
Unit
µA
V
V
V
V
V
0.4
4 - 20
al
mA
id
µA
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
