hi-8423ptt Holt Integrated Circuits, Inc., hi-8423ptt Datasheet - Page 4

• Manufacturer Part Number: hi-8423ptt
• Description: 6-channel / 8-channel Discrete-to-digital Interface Sensing Open / Ground Signals
• Manufacturer: Holt Integrated Circuits, Inc.

HI - 842xxx x x
ORDERING INFORMATION
LIGHTNING PROTECTION
The Open / Ground inputs will survive DO-160D level 3,
waveforms 3 and 4 without external components. In order
to guarantee survival to waveform 5A an external series
resistor of at least 3.3K is recommended.
TIMING DIAGRAMS
CE
or
OUTx
OE
t , t
ZL ZH
Output Enable Timing
W
PART
NUMBER
PART
NUMBER
PART
NUMBER
8420PS
8423PT
Blank
F
T
I
HOLT INTEGRATED CIRCUITS
t , t
ZL ZH
HI-8420, HI-8423
LEAD
FINISH
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
16 PIN PLASTIC NARROW BODY SOIC (16HN)
20 PIN PLASTIC TSSOP (20HT)
Tin / Lead (Sn / Pb) Solder
100% Matte Tin (Pb-free, RoHS compliant)
-55°C TO +125°C
-40°C TO +85°C
4
INPUT SWITCHING THRESHOLD
The input switching threshold of the Open / Ground
inputs will decrease with increasing series resistance
according to the function
where V is the nominal input switching threshold,
and R is the value of the external series resistor in
Kohms.
OUTx
INx
Input to Output Propagation Delay
T
FLOW
t
HL
T
I
V = 3.25 - 0.1R
BURN
T
NO
NO
IN
t
LH