HV214
Operating Conditions
Symbol
V
DD
V
PP
V
NN
V
IH
V
IL
V
SIG
T
A
Parameter
Logic power supply voltage
Positive high voltage supply
Negative high voltage supply
High-level input voltage
Low-level input voltage
Analog signal voltage peak to peak
Operating free air-temperature
Value
4.5V to 13.2V
40V to V
NN
+ 250V
-40V to -210V
V
DD
-1.5V to V
DD
0V to 1.5V
V
NN
+10V to V
PP
-10V
0°C to 70°C
Power Up/Down Sequence:
1 Power up/down sequence is arbitrary except GND must be powered-up first and powered-down last.
2 V
SIG
must be V
NN
≤
V
SIG
≤
V
PP
or floating during power up/down transistion.
3 Rise and fall times of power supplies V
DD
, V
PP
, and V
NN
should not be less than 1.0msec.
Truth Table
D0
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
X
X
D1
D2
D3
D4
D5
D6
D7
LE
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
X
CL
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
SW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
HOLD PREVIOUS STATE
OFF OFF OFF OFF OFF OFF OFF OFF
X
X
Notes:
X
X
X
X
X
X
X
X
X
X
X
X
1. The eight switches operate independently.
2. Serial data is clocked in on the L→ H transition CLK.
3. The switches go to a state retaining their present condition at the rising edge of LE. When LE is low the shift
register data flows through the latch.
4. D
OUT
is high when switch 7 is on.
5. Shift register clocking has no effect on the switch states if LE is H.
6. The clear input overrides all other inputs.
4
SUPERTEX [ Supertex, Inc ]
