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SN65LBC174A Datasheet(PDF) 4 Page - Texas Instruments

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Part No. SN65LBC174A
Description  QUADRUPLE RS-485 DIFFERENTIAL LINE DRIVERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN65LBC174A Datasheet(HTML) 4 Page - Texas Instruments

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SN65LBC174A, SN75LBC174A
QUADRUPLE RS485 DIFFERENTIAL LINE DRIVERS
SLLS446C − OCTOBER 2000 − REVISED MAY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC
4.75
5
5.25
V
Voltage at any bus terminal
Y, Z
−7
12
V
High-level input voltage, VIH
A, EN
2
VCC
V
Low-level input voltage, VIL
A, EN
0
0.8
V
Output current
−60
60
mA
Operating free-air temperature, TA
SN75LBC174A
0
70
°C
Operating free-air temperature, TA
SN65LBC174A
−40
85
°C
electrical characteristics over recommended operating conditions
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VIK
Input clamp voltage
II = −18 mA
−1.5
−0.77
V
VO
Open-circuit output voltage
Y or Z,
No load
0
VCC
V
Steady-state differential output
No load (open circuit)
3
VCC
VOD(SS)
Steady-state differential output
voltage magnitude‡
RL = 54 Ω, See Figure 1
1
1.6
2.5
V
VOD(SS)
voltage magnitude‡
With common-mode loading, See Figure 2
1
1.6
2.5
V
∆VOD(SS)
Change in steady-state differential
output voltage between logic
states
See Figure 1
−0.1
0.1
V
VOC(SS)
Steady-state common-mode
output voltage
See Figure 3
2
2.4
2.8
V
∆VOC(SS)
Change in steady-state
common-mode output voltage
between logic states
See Figure 3
−0.02
0.02
V
II
Input current
A, G, G
−50
50
µA
IOS
Short-circuit output current
VI = 0 V
−200
200
mA
IOS
Short-circuit output current
VI = VCC
−200
200
mA
IOZ
High-impedance-state output
current
VTEST = −7 V to 12 V,
See Figure 7
EN at 0 V
−50
50
µA
IO(OFF)
Output current with power off
See Figure 7
VCC = 0 V
−10
10
µA
ICC
Supply current
VI = 0 V or VCC,
All drivers enabled
23
mA
ICC
Supply current
VI = 0 V or VCC,
No load
All drivers disabled
1.5
mA
† All typical values are at VCC = 5 V and 25°C.
‡ The minimum VOD may not fully comply with TIA/EIA-485-A at operating temperatures below 0°C. System designers should take the possibly
of lower output signal into account in determining the maximum signal transmission distance.


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