參數(shù)資料
型號： LT1331CNW
廠商： LINEAR TECHNOLOGY CORP
元件分類： 通用總線功能
英文描述： 3V RS562 or 5V/3V RS232 Transceiver with One Receiver Active in Shutdown
中文描述： TRIPLE LINE TRANSCEIVER, PDIP28
封裝： 0.600 INCH, PLASTIC, DIP-28
文件頁數(shù)： 3/8頁
文件大?。?/td> 245K
代理商： LT1331CNW
3
LT1331
ELECTRICAL C
HARA TERISTICS
The
G
denotes specifications which apply over the full operating
temperature range (0
°
C
≤
T
A
≤
70
°
C for commercial grade).
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Testing done at V
CC
= 5V, V
L
= 3.3V, and V
ON/OFF
= 3V, unless
otherwise stated.
Note 3:
Supply current is measured as the average over several charge
pump cycles. C
+
= 1
μ
F, C
–
= 0.1
μ
F, C1 = C2 = 0.2
μ
F. All outputs are open
with all driver inputs tied high.
Note 4:
V
L
supply current is measured with all receiver outputs high.
Note 5:
Supply current and leakage current measurements in shutdown
are performed with V
ON/OFF
≤
0.1V. Supply current measurements using
driver disable are performed with V
DRIVER DISABLE
≥
3V.
Note 6:
For driver delay measurements, R
L
= 3k and C
L
= 51pF. Trigger
points are set between the driver’s input logic threshold and the output
transition to the zero crossing (t
HL
= 1.4V to 0V and t
LH
= 1.4V to 0V).
Note 7:
For receiver delay measurements, C
L
= 51pF. Trigger points are
set between the receiver’s input logic threshold and the output transition
to standard TTL/CMOS logic threshold (t
HL
= 1.3V to 2.0V and t
LH
= 1.7V
to 0.8V).
Note 8:
Data rate operation guaranteed by slew rate, short-circuit current
and propagation delay tests.
PARAMETER
Any Driver
Output Voltage Swing, Positive
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
= 5V, R
L
= 3k
V
CC
= 3.3V, R
L
= 3k
V
CC
= 5V, R
L
= 3k
V
CC
= 3.3V, R
L
= 3k
Input Low Level (V
OUT
= High)
Input High Level (V
OUT
= Low)
0.8V
≤
V
IN
≤
2V
V
OUT
= 0V
Shutdown V
OUT
=
±
30V (Note 5)
R
L
= 3k, C
L
= 2500pF
R
L
= 3k, C
L
= 1000pF
R
L
= 3k, C
L
= 51pF
R
L
= 3k, C
L
= 2500pF
Output Transition t
HL
High to Low (Note 6)
Output Transition t
LH
Low to High
G
5.0
3.7
6.5
4.0
–6.0
–3.3
1.4
1.4
5
17
10
V
V
V
V
V
V
Output Voltage Swing, Negative
G
–5.0
–2.7
0.8
Logic Input Voltage Level
G
G
2.0
Logic Input Current
Output Short-Circuit Current
Output Leakage Current
Data Rate (Note 8)
G
20
μ
A
mA
μ
A
±
9
G
100
120
250
kBaud
kBaud
V/
μ
s
V/
μ
s
Slew Rate
15
6
0.6
0.5
30
Propagation Delay
1.3
1.3
μ
s
μ
s
Any Receiver
Input Voltage Thresholds
Input Low Threshold (V
OUT
= High)
Input High Threshold (V
OUT
= Low)
G
G
0.8
1.3
1.7
0.4
5
V
V
V
2.4
1.0
7
Hysteresis
Input Resistance
Receivers 1 Through 4
Output Voltage
G
0.1
3
V
IN
=
±
10V
k
Output Low, I
OUT
= –1.6mA
Output High, I
OUT
= 160
μ
A (V
L
= 3.3V)
Sinking Current, V
OUT
= V
CC
Sourcing Current, V
OUT
= 0V
Output Transition t
HL
High to Low (Note 7)
Output Transition t
LH
Low to High
Shutdown (Note 5) 0
≤
V
OUT
≤
V
CC
G
G
0.2
2.4
–20
20
250
350
1
0.4
V
V
2.0
Output Short-Circuit Current
–10
mA
mA
ns
ns
μ
A
10
Propagation Delay
600
600
10
Output Leakage Current
Receiver 5 (Low Q-Current RX)
Output Voltage
G
Output Low, I
OUT
= –500
μ
A
Output High, I
OUT
= 160
μ
A (V
L
= 3V)
Sinking Current, V
OUT
= V
CC
Sourcing Current, V
OUT
= 0V
Output Transition t
HL
High to Low (Note 7)
Output Transition t
LH
Low to High
G
G
0.2
2.4
–4
4
1
1
0.4
V
V
2.0
Output Short-Circuit Current
–2
mA
mA
μ
s
μ
s
2
Propagation Delay
3
3
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