SAMHOP Microelectronics Corp.
VFD CONTROLLER / DRIVER
SM6311
DC/AC ELECTRICAL CHARACTERISTIC
(V
DD
=5V, GND=0V, V
EE
=V
DD
-35V, TA =25
℃
, unless otherwise noted)
PARAMETER
High-Level Output Voltage
Low-Level Output Voltage
Low-Level Output Voltage
High-Level Output Current
High-Level Output Current
High-Level Input Voltage
Low-Level Input Voltage
Oscillation Frequency
SYMBOL
V
OHLED
V
OLLED
V
OLDout
I
OHSg
V
OHGr
V
IH
V
IL
fosc
MIN.
0.9V
DD
－
－
-3
-15
0.7V
DD
－
350
TYP.
－
－
－
－
－
－
－
500
MAX.
－
1
0.4
－
－
－
0.3V
DD
650
UNIT
V
V
V
mA
mA
V
V
KHz
TEST CONDITIONS
I
OHLED
=-1mA, LED1 to LED5
I
OLLED
=+20mA, LED1 to LED5
D
OUT
,I
OLDout
=4mA
V
O=
V
DD
－
2V, Seg
1
to
Seg
12
V
O=
V
DD
－
2V, Grid
1 to
Grid
8
,
Seg
13
/ Grid
16
to Seg
20
/ Grid
9
－
－
R=51K
Ω
SWITCHING CHARACTERISTICS
( Ta=-20 to +70
℃
, V
DD
=4.5 to 5.5V, V
EE
=-30V )
PARAMETER
Oscillation Frequency
Propagation Delay Time
SYMBOL
t
OSC
t
PLZ
t
PZL
t
TZH1
Rise Time
Fall Time
Maximun Clock Frequency
Input Capacitance
t
TZH2
t
THZ
fmax.
C
I
1
15
MIN.
350
TYP.
500
MAX.
650
300
100
2
0.5
120
UNIT
KHz
ns
ns
μ
s
μ
s
μ
s
MH
Z
pF
TEST CONDITIONS
R=56K
Ω
CLK
D
OUT
C
L
=15pF, R
L
=10K
Ω
Seg
1
to Seg
12
C
L
=300pF Grid
1
to Grid
8
,
Seg
13
/ Grid
16
to
Seg
20
/ Grid
9
C
L
=300pF, Seg
n
, Grid
n
Duty=50%
TIMING CONDITIONS
( Ta=-20 to +70
℃
, V
DD
=4.5 to 5.5V )
PARAMETER
Clock Pulse Width
Strobe Pulse Width
Data Setup Time
Data Hold Time
Clock-Strobe Time
Wait Time
SYMBOL
PW
CLK
PW
STB
t
SETUP
t
HOLD
t
CLK-STB
t
WAIT
MIN.
400
1
100
100
1
1
TYP.
MAX.
UNIT
ns
μ
s
ns
ns
μ
s
μ
s
CLK
CLK
STB
CLK
TEST CONDITIONS
Page 9
V.1.2, MAY,2003
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
