LT1342CG Linear Technology, LT1342CG Datasheet - Page 3

• Manufacturer Part Number: LT1342CG
• Description: IC TXRX 5V RS232 W/3VLOGC 28SSOP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LT1342CG

• Number Of Drivers/receivers: 3/5
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LT1342CGW; LT1342CGW

PARAMETER
Any Driver
Output Voltage Swing
Logic Input Voltage Level
Logic Input Current
Output Short-Circuit Current
Output Leakage Current
Data Rate (Note 8)
Slew Rate
Propagation Delay
Any Receiver
Input Voltage Thresholds
Hysteresis
Input Resistance
Output Leakage Current
Receivers 1 Through 4
Output Voltage
Output Short-Circuit Current
Propagation Delay
Receiver 5
Output Voltage
Output Short-Circuit Current
Propagation Delay
The
temperature range (0 C T
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Testing done at V
Note 3: Supply current is measured with external capacitors C
= 0.1 F, C1 = C2 = 0.2 F. All outputs are open with all driver inputs
tied high.
Note 4: V
Note 5: Supply current and leakage measurements in shutdown are
performed with V
disable are performed with V
ELECTRICAL C
denotes specifications which apply over the full operating
L
supply current is measured with all receiver outputs high.
ON/OFF
CC
0.1V. Supply current measurements using driver
A
= 5V, V
DRIVER DISABLE
HARA TERISTICS
70 C for commercial grade).
L
= 3.3V and V
C
CONDITIONS
Load = 3k to GND
Input Low Level (V
Input High Level (V
0.8V V
V
Shutdown, V
R
R
R
R
Output Transition t
Output Transition t
Input Low Threshold (V
Input High Threshold (V
Shutdown (Note 4) 0 V
Output Low, I
Output High, I
Sinking Current, V
Sourcing Current, V
Output Transition t
Output Transition t
Output Low, I
Output High, I
Sinking Current, V
Sourcing Current, V
Output Transition t
Output Transition t
OUT
L
L
L
L
3V.
= 3k, C
= 3k, C
= 3k, C
= 3k, C
= 0V
ON/OFF
IN
L
L
L
L
= 2500pF
= 1000pF
= 51pF
= 2500pF
OUT
2V
OUT
OUT
OUT
OUT
= 3V.
= 30V (Note 5)
= – 1.6mA
= – 500 A
= 160 A
= 160 A
OUT
OUT
HL
LH
HL
LH
HL
LH
OUT
OUT
+
OUT
OUT
= C
High to Low (Note 6)
Low to High
High to Low (Note 7)
Low to High
High to Low (Note 7)
Low to High
= V
= V
= High)
= Low)
OUT
OUT
= 0V
= 0V
(Note 2)
–
OUT
CC
CC
= High)
= Low)
V
CC
Note 6: For driver delay measurements, R
points are set between the driver’s input logic threshold and the output
transition to the zero crossing (t
Note 7: For receiver delay measurements, C
set between the receiver’s input logic threshold and the output transition
to standard TTL/CMOS logic threshold (t
to 0.8V).
Note 8: Data rate operation guaranteed by slew rate, short-circuit current
and propagation delay tests.
Positive
Negative
HL
= 1.4V to 0V and t
MIN
120
250
0.8
0.1
2.7
2.7
2
4
3
10
5
2
9
HL
L
= 3k and C
L
= 1.3V to 2.4V and t
= 51pF. Trigger points are
– 6.5
TYP
– 20
250
350
1.4
1.4
0.6
0.5
1.3
1.7
0.4
0.2
2.9
0.2
2.9
– 4
17
10
15
5
5
1
1
1
7.3
6
20
4
LH
L
= 51pF. Trigger
= 1.4V to 0V).
MAX
100
–10
600
600
– 5
0.8
1.3
1.3
2.4
0.4
0.4
– 2
20
30
10
1
7
3
3
LT1342
LH
= 1.7V
UNITS
kBaud
kBaud
3
V/ s
V/ s
mA
mA
mA
mA
mA
k
ns
ns
V
V
V
V
A
A
V
V
V
A
V
V
V
V
s
s
s
s