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SN75185 Datasheet(PDF) 6 Page - Texas Instruments

Part No. SN75185
Description  MULTIPLE RS-232 DRIVERS AND RECEIVERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN75185 Datasheet(HTML) 6 Page - Texas Instruments

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DRIVER SECTION
Switching Characteristics
SN75185
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS181D–DECEMBER 1994–REVISED JANUARY 2006
abc
Electrical Characteristics
over recommended operating free-air temperature range, VDD = 9 V, VSS =–9V,VCC = 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VOH
High-level output voltage
VIL = 0.8 V,
RL =3kΩ,
See Figure 1
6
7.5
V
VOL
Low-level output voltage(1)
VIH = 1.9 V,
RL =3kΩ,
See Figure 1
–7.5
–6
V
IIH
High-level input current
VI = 5 V,
See Figure 2
10
μA
IIL
Low-level input current
VI = 0,
See Figure 2
–1.6
mA
IOS(H) High-level short-circuit output current(2)
VIL = 0.8 V,
VO = 0,
See Figure 1
–4.5
–12
–19.5
mA
IOS(L) Low-level short-circuit output current
VIH = 2 V,
VO = 0,
See Figure 1
4.5
12
19.5
mA
ro
Output resistance(3)
VCC =VDD =VSS =0,
VO =–2Vto 2V
300
Ω
(1) The algebraic convention, in which the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic
levels only (e.g., if –10 V is maximum, the typical value is a more negative voltage).
(2) Output short-circuit conditions must maintain the total power dissipation below absolute maximum ratings.
(3) Test conditions are those specified by TIA/EIA-232-F and as listed above.
VCC = 5 V, VDD =12V,VSS = –12 V, TA =25°C (see Figure 3)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
RL =3kΩ to 7 kΩ,CL = 15 pF
315
500
ns
tPHL
Propagation delay time, high- to low-level output
RL =3kΩ to 7 kΩ,CL =15pF
75
175
ns
CL =15pF
60
100
ns
tTLH
Transition time, low- to high-level output
RL =3kΩ to 7 kΩ
CL = 2500 pF(1)
1.7
2.5
μs
CL = 15 pF
4075ns
tTHL
Transition time, high- to low-level output
RL =3kΩ to 7 kΩ
CL = 2500 pF(2)
1.5
2.5
μs
(1) Measured between –3-V and 3-V points of the output waveform (TIA/EIA-232-F conditions); all unused inputs are tied either high or low.
(2) Measured between 3-V and –3-V points of the output waveform (TIA/EIA-232-F conditions); all unused inputs are tied either high or low.
6


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