參數(shù)資料
型號： SN75ALS180NE4
廠商： TEXAS INSTRUMENTS INC
元件分類： Buffer和線驅(qū)動
英文描述： LINE TRANSCEIVER, PDIP14
封裝： ROHS COMPLIANT, PLASTIC, DIP-14
文件頁數(shù)： 17/21頁
文件大?。?/td> 555K
代理商： SN75ALS180NE4
SN65ALS180, SN75ALS180
DIFFERENTIAL DRIVER AND RECEIVER PAIRS
SLLS052G – AUGUST 1987 – REVISED APRIL 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DRIVERS
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIK
Input clamp voltage
II = –18 mA
–1.5
V
VO
Output voltage
IO = 0
0
6
V
|VOD1|
Differential output voltage
IO = 0
1.5
6
V
|VOD2|
Differential output voltage
RL = 100 ,
See Figure 1
1/2 VOD1
or 2§
V
OD2
g
RL = 54 ,
See Figure 1
1.5
2.5
5
VOD3
Differential output voltage
Vtest = –7 V to 12 V,
See Figure 2
1.5
5
V
|VOD|
Change in magnitude of
differential output voltage
RL = 54 or 100 ,
See Figure 1
±0.2
V
VOC
Common-mode output voltage
RL = 54 or 100 ,
See Figure 1
3
–1
V
|VOC|
Change in magnitude of
common-mode output voltage
RL = 54 or 100 ,
See Figure 1
±0.2
V
IO
Output current
Output disabled
VO = 12 V
1
mA
IO
Output current
(see Note 5)
VO = –7 V
–0.8
mA
IIH
High-level input current
VI = 2.4 V
20
A
IIL
Low-level input current
VI = 0.4 V
–400
A
#
VO = –6 V
SN75ALS180
–250
#
VO = –4 V
SN65ALS180
–250
IOS
Short-circuit output current#
VO = 0
All
–150
mA
VO = VCC
All
250
VO = 8 V
All
250
ICC
Supply current
No load
Driver outputs enabled,
Receiver disabled
25
30
mA
CC
y
Outputs disabled
19
26
The power-off measurement in TIA/EIA-422-B applies to disabled outputs only and is not applied to combined inputs and outputs.
All typical values are at VCC = 5 V, TA = 25°C.
§ The minimum VOD2 with 100- load is either 1/2 VOD2 or 2 V, whichever is greater.
|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.
# Duration of the short circuit should not exceed one second for this test.
NOTE 5: This applies for both power on and off; refer to TIA/EIA-485-A for exact conditions. The TIA/EIA-422-B limit does not apply for a combined
driver and receiver terminal.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
td(OD)
Differential output delay time
RL = 54 ,
CL = 50 pF,
See Figure 3
3
8
13
ns
Pulse skew (
td(ODH) – td(ODL))
RL = 54 ,
CL = 50 pF,
See Figure 3
1
6
ns
tt(OD)
Differential output transition time
RL = 54 ,
CL = 50 pF,
See Figure 3
3
8
13
ns
tPZH
Output enable time to high level
RL = 110 ,
See Figure 4
23
50
ns
tPZL
Output enable time to low level
RL = 110 ,
See Figure 5
19
24
ns
tPHZ
Output disable time from high level
RL = 110 ,
See Figure 4
8
13
ns
tPLZ
Output disable time from low level
RL = 110 ,
See Figure 5
8
13
ns
All typical values are at VCC = 5 V and TA = 25°C.
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