HV518 Supertex Inc, HV518 Datasheet - Page 3
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HV518
Manufacturer Part Number
HV518
Description
32-Channel Vacuum-Fluorescent Display Driver
Manufacturer
Supertex Inc
Datasheet
1.HV518.pdf
(5 pages)
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Input and Output Equivalent Circuits
Parameter Measurement Information
Note: For testing purposes, all input pulses have maximum rise and fall times of 30 nsec.
GND
V
Input
DD
Data In
Output
Clock
Clock
Data
Figure 3: Input Timing Voltage Waveforms
50%
Logic Inputs
t
w(CKL)
50%
Figure 4
t
d
t
su
t
w(CKH)
50%
t
h
t
w(CKH)
GND
V
DD
V
V
V
V
V
V
V
V
IH
IL
IH
IL
IH
IL
OH
OL
Logic Data Output
3
Latch Enable
HV Output
HV Output
Strobe
Data Out
Figure 6: Switching-Time Voltage Waveforms
t
DLH
t
TLH
50%
GND
V
90%
10%
PP
Figure 5
t
DLH
High Voltage Outputs
or t
50%
t
t
DHL
DHL
THL
90%
10%
V
V
V
V
HV
V
V
V
V
IH
IL
OH
OL
IH
IL
OH
OL
HV518
OUT