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RECEIVER ELECTRICAL CHARACTERISTICS
RECEIVER SWITCHING CHARACTERISTICS
SN65HVD485E
SLLS612C – JUNE 2004 – REVISED MARCH 2007
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
V
IT+
Positive-going input threshold voltage I
O
= –8 mA –85 –10 mV
V
IT–
Negative-going input threshold voltage I
O
= 8 mA –200 –115 mV
V
hys
Hysteresis voltage (V
IT+
– V
IT–
) 30 mV
V
OH
High-level output voltage V
ID
= 200 mV, I
OH
= –8 mA, See Figure 8 4 4.6 V
V
OL
Low-level output voltage V
ID
= –200 mV, I
OH
= 8 mA, See Figure 8 0.15 0.4 V
I
OZ
High-impedance-state output current V
O
= 0 to V
CC
, RE = V
CC
–1 1 µ A
V
IH
= 12 V, V
CC
= 5 V 0.5
V
IH
= 12 V, V
CC
= 0 0.5
I
I
Bus input current mA
V
IH
= –7 V, V
CC
= 5 V –0.4
V
IH
= –7 V, V
CC
= 0 –0.4
I
IH
High-level input current ( RE) V
IH
= 2 V –60 –30 µ A
I
IL
Low-level input current ( RE) V
IL
= 0.8 V –60 –30 µ A
C
diff
Differential input capacitance V
I
= 0.4 sin (4E6 π t) + 0.5 V, DE at 0 V 7 pF
(1) All typical values are at 25 ° C and with a 5-V supply.
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low-to-high-level output 200
t
PHL
Propagation delay time, high-to-low-level output 200 ns
V
ID
= -1.5 V to 1.5 V,
t
sk(p)
Pulse skew ( |t
PHL
– t
PLH
| ) 6
C
L
= 15 pF, See Figure 9
t
r
Output signal rise time 3
ns
t
f
Output signal fall time 3
t
PZH
Output enable time to high level 50
t
PZL
Output enable time to low level 50
C
L
= 15 pF, DE at 3 V,
ns
See Figure 10 and Figure 11
t
PHZ
Output enable time from high level 50
t
PLZ
Output enable time from low level 50
t
PZH(SHDN)
Propagation delay time, shutdown-to-high-level output C
L
= 15 pF, DE at 0 V, 3500
ns
See Figure 12
t
PZL(SHDN)
Propagation delay time, shutdown-to-low-level output 3500
5
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