DS14C335
Electrical Characteristics
(Notes 2, 3)
Symbol
Parameter
(Continued)
Over recommended operating conditions, SD = 0.8V, unless otherwise specified.
Conditions
R5, 2.0V
≤
SD
≤
5.5V
V
TL
Input Low Threshold
Voltage
Hysteresis
Input Resistance
Input Current
V
IN
=
±
3V to
±
15V
V
IN
= +15V
V
IN
= +3V
V
IN
= −3V
V
IN
= −15V
V
OH
High Level Output
Voltage
Low Level Output
Voltage
V
IN
= −3V, I
OH
= −1 mA
V
IN
= −3V, I
OH
= −100 µA
V
OL
V
IN
= +3V, I
OL
= +2 mA
R1–R5, SD = 0.8V
R5, 2.0V
≤
SD
≤
5.5V
V
HY
R
IN
I
IN
0.4
0.1
50
3.0
2.14
0.43
−1.0
−5.0
2.4
2.8
3.1
3.28
0.23
0.4
Min
Typ
2.0
1.1
0.5
300
3.8
7.0
5.0
1.0
−0.43
−2.14
Max
2.8
Units
V
V
V
mV
kΩ
mA
mA
mA
mA
V
V
V
RECEIVER CHARACTERISTICS
(Note 4)
Switching Characteristics
(Note 2)
Over recommended operating conditions, SD = 0.8V, unless otherwise specified.
Symbol
t
PLH
t
PHL
t
SK
SR1
SR2
t
PLS
t
PSL
t
PHS
t
PSH
t
PLH
t
PHL
t
SK
t
PLS
t
PSL
t
PHS
t
PSH
Parameter
Propagation Delay LOW to
HIGH
Propagation Delay HIGH to
LOW
Skew |t
PLH
–t
PHL
|
Output Slew Rate
Output Slew Rate
Propagation Delay LOW to SD
Propagation Delay SD to LOW
Propagation Delay HIGH to SD
Propagation Delay SD to HIGH
Propagation Delay LOW to
HIGH
Propagation Delay HIGH to
LOW
Skew |t
PLH
–t
PHL
|
Propagation Delay LOW to SD
Propagation Delay SD to LOW
Propagation Delay HIGH to SD
Propagation Delay SD to HIGH
(Figures
7, 8)
R
L
= 1 kΩ
C
L
= 50 pF
R1–R4 Only
C
L
= 50 pF
(Figures
3, 3)
0.1
0.1
R
L
= 3 kΩ to 7 kΩ, C
L
= 50 pF (Figure
2)
R
L
= 3 kΩ, C
L
= 2500 pF (Figure
2)
(Figures
5, 6)
R
L
= 3 kΩ
C
L
= 50 pF
4
4
R
L
= 3 kΩ
C
L
= 50 pF
(Figures
1, 2)
Conditions
Min
0.1
0.1
Typ
0.6
0.6
0
13
10
0.48
1.88
0.62
1.03
0.4
0.6
0.2
0.13
1.0
0.19
0.58
1.0
1.0
0.8
Max
1.0
1.0
0.2
30
30
Units
µs
µs
µs
V/µs
V/µs
ms
ms
ms
ms
µs
µs
µs
µs
µs
µs
µs
DRIVER CHARACTERISTICS
RECEIVER CHARACTERISTICS
Note 1:
“Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics” specify conditions for device operation.
Note 2:
Typical values are given for V
CC
= 3.3V and T
A
= +25˚C.
Note 3:
Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwise speci-
fied.
Note 4:
Receiver characteristics are guaranteed for SD = 0.8V. When SD = 2.0V, receiver five (R5) is active and meets receiver parameters in SHUTDOWN (SD)
mode, unless otherwise specified.
Note 5:
Generator characteristics for driver input: f = 64 kHz (128 kbits/sec), t
r
= t
f
<
10 ns, V
IH
= 3V, V
IL
= 0V, duty cycle = 50%.
Note 6:
Generator characteristics for receiver input: f = 64 kHz (128 kbits/sec), t
r
= t
f
= 200 ns, V
IH
= 3V, V
IL
= −3V, duty cycle = 50%.
3
www.national.com
NSC [ NATIONAL SEMICONDUCTOR ]
