Datasheet

Electrical characteristics ST3222E
6/15
Table 9. Receiver electrical characteristics (C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 5.5 V,
T
A
= -40 to 85 °C, unless otherwise specified. Typical values are referred to T
A
= 25 °C)
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
OL
Output leakage current R-OUT, EN = V
CC
, receiver disabled ± 0.05 ± 10 µA
V
RIN
Receiver input voltage
operating range
-25 25 V
V
RIL
Input threshold low
T
A
= 25°C, V
CC
= 3.3 V 0.6 1.2
V
T
A
= 25°C, V
CC
= 5 V 0.8 1.5
V
RIH
Input threshold high
T
A
= 25°C, V
CC
= 3.3 V 1.5 2.4
V
T
A
= 25°C, V
CC
= 5 V 1.8 2.4
V
RIHYS
Input hysteresis 0.5 V
R
RIN
Input resistance T
A
= 25°C 3 5 7 KΩ
V
ROL
Output voltage low I
OUT
= 1.6 mA 0.4 V
V
ROH
Output voltage high I
OUT
= -1 mA V
CC
-0.6
V
CC
-
0.1
V
Table 10. Timing characteristics (C
1
- C
4
= 0.1 µF, V
CC
= 3 V to 5.5 V, T
A
= -40 to 85 °C, unless
otherwise specified. Typical values are referred to T
A
= 25 °C)
Symbol Parameter Test conditions Min. Typ. Max. Unit
D
R
Data transfer rate
R
L
= 3 KΩ, C
L2
= 1000 pF
one transmitter switching
250 Kbps
t
PHLR
t
PLHR
Propagation delay input to
output
R
XIN
to R
XOUT
, C
L
= 150 pF 0.15 µs
|t
PHLT
- t
THL
|
Transmitter propagation
delay difference
(1)
200 ns
t
OER
Receiver output enable
time
Normal operation 50 ns
t
ODR
Receiver output disable
time
Normal operation 50 ns
|t
PHLR
- t
THR
|
Receiver propagation
delay difference
50 ns
S
RT
Transition slew rate
T
A
= 25°C R
L
= 3 KΩ to 7 KΩ
V
CC
= 3.3 V
measured from +3V to -3V or -3V to +3V
C
L
= 150 pF to 1000 pF
630V/µs
T
A
= 25°C R
L
= 3 KΩ to 7 KΩ
V
CC
= 3.3 V
measured from +3V to -3V or -3V to +3V
C
L
= 150 pF to 2500 pF
430V/µs
1. Transmitter Skew is measured at the transmitter zero cross points