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參數(shù)資料
| 型號： | SN75178 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quadruple Differential Line Receiver 16-SO -40 to 85 |
| 中文描述： | 差分總線中繼器 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大小： | 165K |
| 代理商： | SN75178 |
SN75177B, SN75178B
DIFFERENTIAL BUS REPEATERS
SLLS002C – D2606, JULY 1985 – REVISED FEBRUARY 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2–4
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
VO
|VOD1|
Input clamp voltage
II = –18 mA
IO = 0
IO = 0
–1.5
V
Output voltage
0
6
V
Differential output voltage
1.5
6
V
RL= 100
RL = 100
,
See Figure 1
1/2
VOD1
or 2§
|VOD2|
Differential output voltage
V
RL = 54
,
See Note 3
See Figure 1
1.5
2.5
5
|VOD3|
Differential output voltage
1.5
5
V
|VOD|
Change in mag
diferential output voltage
0 2
±
0.2
V
RL = 54
or 100
,
See Figure 1
VOC
Common mode output voltage
Common-mode output voltage
3
V
–1
|VOC|
Change in mag
common-mode output voltage
0 2
±
0.2
V
IO
IOZ
IIH
IIL
Output current
VCC = 0,
VO = –7 V to 12 V
VI = 2.4 V
VI = 0.4 V
VO = –7 V
VO = VCC
VO = 12 V
VO = –7 V to 12 V
±
100
±
100
μ
A
μ
A
μ
A
μ
A
High-impedance-state output current
High-level input current
20
Low-level input current
–400
–250
IOS
Short-circuit output current
250
mA
250
ICC
Supply current (total package)
No load
Outputs enabled
57
70
mA
Outputs disabled
26
35
All typical values are at VCC = 5 V and TA = 25
°
C.
|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.
§The minimum VOD2 with a 100-
load is either 1/2 VOD1 or 2, whichever is greater.
NOTE 3: See Figure 3.5 of EIA Standard RS-485.
switching characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
MIN
TYP
15
MAX
UNIT
ns
tdD
ttD
tPZH
tPZL
tPHZ
tPLZ
Differential-output delay time
RL= 54
RL = 54
,
See Figure 3
20
Differential-output transition time
20
30
ns
Output enable time to high level
RL = 110
,
RL = 110
,
RL = 110
,
RL = 110
,
See Figure 4
85
120
ns
Output enable time to low level
See Figure 5
40
60
ns
Output disable time from high level
See Figure 4
See Figure 5
150
250
ns
Output disable time from low level
20
30
ns
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相關(guān)代理商/技術(shù)參數(shù) |
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| SN75178AP | 制造商:Texas Instruments 功能描述: |
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