AS1116
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
= 2.7 to 5.5V, R
SET
= 9.53k
Ω
, T
AMB
= -40 to +85°C, typ. values @ T
AMB
= +25ºC, V
DD
= 5.0V
(unless otherwise
specified).
Table 3. Electrical Characteristics
Symbol
V
DD
I
DDSD
Parameter
Operating Supply Voltage
Shutdown Supply Current
All digital inputs at V
DD
or
GND, T
AMB
= +25ºC
R
SET
= open circuit.
I
DD
f
OSC
I
DIGIT
I
SEG
ΔI
SEG
I
SEG
Operating Supply Current
Display Scan Rate
Digit Drive Sink Current
Segment Drive Source Current
Segment Drive Current Matching
Segment Drive Source Current
All segments and decimal
point on; I
SEG
= -40mA.
8 digits scanned
V
OUT
= 0.65V
V
DD
= 5.0V, V
OUT
= (V
DD
-1V)
Average Current
0.6
320
-37
-42
3
47
-47
Conditions
Min
2.7
0.2
0.35
335
0.8
1.2
Typ
Max
5.5
2
0.6
mA
kHz
mA
mA
%
mA
Unit
V
µA
Table 4. Logic Inputs/Outputs Characteristics
Symbol
I
IH
, I
IL
V
IH
V
IL
Parameter
Input Current SDI, SCL, LD
Logic High Input Voltage
Logic Low Input Voltage
Conditions
V
IN
= 0V or V
DD
4.5V < V
DD
< 5.5V
2.7V < V
DD
< 4.5V
V
DD
= 5.0V
V
DD
= 3.0V
SDO, I
SOURCE
= -1mA,
V
DD
= 5.0V
SDO, I
SOURCE
= -1mA,
V
DD
= 3.0V
SDO, I
SINK
= 1mA
SDI, SCL, LD
0.7x
V
DD
0.05x V
DD
V
DD
- 1
V
V
DD
- 0.5
0.4
1
0.75x 0.8x
V
DD
V
DD
0.1x 0.15x
V
DD
V
DD
V
V
V
V
Min
-1
0.6 x V
DD
0.7 x V
DD
0.8
0.6
Typ
Max
1
Unit
µA
V
V
V
V
OH
V
OL
ΔV
I
Output High Voltage
Output Low Voltage
Hysteresis Voltage
Open Detection Level Threshold
Short Detection Level Threshold
Table 5. SPI Timing Characteristics
Symbol
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
DO
t
LDCK
t
CSW
t
DSPD
Parameter
SCL Clock Period
SCL Pulse Width High
SCL Pulse Width Low
LD to SCL Rise Setup Time
SCL Rise to LD Rise Hold Time
SDI Setup Time
SDI Hold Time
Output Data Propagation Delay
LD Rising Edge to SCL Rising Edge
Minimum LD Pulse High
Data-to-Segment Delay
Conditions
Min
100
20
20
25
10
0
5
20
20
2.25
Typ
Max
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
C
LOAD
= 50pF
25
See
for more information.
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