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SN75ALS1177 Datasheet(PDF) 6 Page - Texas Instruments

Part No. SN75ALS1177
Description  DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
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Maker  TI [Texas Instruments]
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SN75ALS1177 Datasheet(HTML) 6 Page - Texas Instruments

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SN75ALS1177, SN75ALS1178
DUAL DIFFERENTIAL DRIVERS AND RECEIVERS
SLLS154B – MARCH 1993 – REVISED FEBRUARY 2001
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VIK
Input clamp voltage
II = –18 mA
–1.5
V
VOH
High-level output voltage
VIH = 2 V,
VIL = 0.8 V,
IOH = –33 mA
3.3
V
VOL
Low-level output voltage
VIH = 2 V,
VIL = 0.8 V,
IOL = 33 mA
1.1
V
|VOD1|
Differential output voltage
IO = 0
1.5
6
V
|VOD2|
Differential output voltage
VCC = 5 V,
RL = 100 Ω,
See Figure 1
1/2 VOD1
or 2‡
V
OD2
g
RL = 54 Ω,
See Figure 1
1.5
2.5
5
|VOD3|
Differential output voltage
See Note 4
1.5
5
V
∆|VOD|
Change in magnitude of
differential output voltage (see Note 5)
RL = 54 Ω or 100 Ω,
See Figure 1
±0.2
V
VOC
Common-mode output voltage
RL = 54 Ω or 100 Ω,
See Figure 1
–1§
3
V
∆|VOC|
Change in magnitude of
common-mode output voltage
(see Note 5)
RL = 54 Ω or 100 Ω,
See Figure 1
±0.2
V
IO(OFF) Output current with power off
VCC = 0,
VO = –7 V to 12 V
±100
µA
IOZ
High-impedance-state output current
VO = –7 V to 12 V
±100
µA
IIH
High-level input current
VIH = 2.7 V
100
µA
IIL
Low-level input current
VIL = 0.4 V
–100
µA
VO = –7 V
–250
IOS
Short circuit output current
VO = VCC
250
mA
IOS
Short-circuit output current
VO = 12 V
250
mA
VO = 0 V
150
ICC
Supply current (total package)
No load
Outputs enabled
35
50
mA
ICC
Supply current (total package)
No load
Outputs disabled
20
50
mA
† All typical values are at VCC = 5 V and TA = 25°C.
‡ The minimum VOD2 with a 100-Ω load is either 1/2 VOD1 or 2 V, whichever is greater.
§ The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for common-mode
output and threshold voltage levels only.
NOTES:
4. See TIA/EIA-485-A Figure 3.5, test termination measurement 2.
5.
∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high
level to a low level.
switching characteristics at VCC = 5 V, TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH Propagation delay time, high- to low-level output
RL = 60 Ω, CL1 = CL2 = 100 pF,
See Figure 3
9
15
22
ns
tPHL Propagation delay time, low- to high-level output
RL = 60 Ω, CL1 = CL2 = 100 pF,
See Figure 3
9
15
22
ns
tsk
Output-to-output skew
RL = 60 Ω, CL1 = CL2 = 100 pF,
See Figure 3
0
2
8
ns
tPZH Output enable time to high level
CL = 100 pF,
See Figure 4
30
35
50
ns
tPZL
Output enable time to low level
CL = 100 pF,
See Figure 5
5
15
25
ns
tPHZ Output disable time from high level
CL = 15 pF,
See Figure 4
7
15
30
ns
tPLZ
Output disable time from low level
CL = 15 pF,
See Figure 5
7
15
30
ns


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