參數(shù)資料
型號： SN75LBC784DW
廠商： TEXAS INSTRUMENTS INC
元件分類： Buffer和線驅(qū)動
英文描述： QUAD LINE TRANSCEIVER, PDSO28
封裝： PLASTIC, SOIC-28
文件頁數(shù)： 4/10頁
文件大?。?/td> 157K
代理商： SN75LBC784DW
"#$%&#'(
SLLS187B NOVEMBER 1994 REVISED JUNE 2007
www.ti.com
4
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature, V
DD
= 10.8 V to 13.2 V, V
SS
= 10.8 V to 13.2 V, T
A
= 0
°
C to +70
°
C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
200
UNIT
VIT+
Positive input threshold voltage
mV
With 500
series resistor
400
VIT
Negative input threshold voltage
200
mV
With 500
series resistor
VI = 10 V
VI = 10 V
400
II
Input current
Other input to GND
1.3
3.25
mA
3.25
1.3
Vhys
Hysteresis (VIT+ VIT)
20
40
150
mV
VOH
High-level output voltage (1)
IO = 20
μ
A
IO = 4 mA
IO = 20
μ
A to 4 mA
3.5
5
V
2.4
5
VOL
IRX
VID
Vofs
(1)Device has an internal RX supply regulator. Maximum RX logic output voltage under no load is thus defined by an internal voltage value. This
is nominally set to 4.5 V with a tolerance of
±
5%.
(2)One input at ground, other input open circuit, IO = 20
μ
A, or both open circuit.
Low-level output voltage
0.4
V
RX short circuit current
50
mA
Differential input voltage
Receiver inputs open circuit
1.6
2.1
2.6
V
Fail safe output voltage
See Note 2
3.5
V
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
test conditions: V
DD
= 10.8 V to 13.2 V, V
SS
= 10.8 V to 13.2 V, T
A
= 0
°
C to +70
°
C (unless otherwise noted)
PARAMETER
tPLH
Propagation delay time low-to-high (see Figure 2)
tPHL
Propagation delay time high-to-low (see Figure 2)
tTHL
Transition time high-to-low (see Figure 3)
tTLH
Transition time low-to-high (see Figure 3)
TEST CONDITIONS
MIN
NOM
MAX
UNIT
0.15
1
CL = 50 pF
μ
s
20
200
ns
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