LTC1348 LINER [Linear Technology], LTC1348 Datasheet - Page 3

• Manufacturer Part Number: LTC1348
• Description: 3.3V/5V Low Power RS232 3-Driver/5-Receiver Transceiver
• Manufacturer: LINER [Linear Technology]

D
V
PARAMETER
Power Supply Generator
V
V
Supply Rise Time
Power Supply
V
Supply Leakage Current (V
Driver/Receiver Enable Threshold Low
Driver/Receiver Enable Threshold High
Driver/Receiver Enable Threshold High
AC ELECTRICAL CHARACTERISTICS
The
temperature range (0 C T
– 40 C T
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Supply current is measured with driver and receiver outputs
unloaded. The V
V
PARAMETER
Maximum Data Rate
Slew Rate
Driver Propagation Delay
(TTL to RS232)
Receiver Propagation Delay
(RS232 to TTL)
CC
CC
+
–
CC
C
Output Voltage
Output Voltage
Supply Current
= 3V to 5.5V, C1 to C4 = 0.1 F, unless otherwise noted.
= 3V to 5.5V, C1 to C4 = 0.1 F, unless otherwise noted.
denotes specifications which apply over the full operating
ELECTRICAL C
A
85 C for Industrial grade).
DREN
and V
CC
RXEN
A
)
70 C for Commercial grade and
= V
CC
HARA TERISTICS
.
CONDITIONS
I
I
I
I
Shutdown to Turn-On
No Load (Note 2) V
No Load (Note 2) V
Receiver Alive Mode (Note 4) V
Shutdown (Note 3)
V
V
CONDITIONS
R
V
V
t
t
t
t
t
t
OUT
OUT
OUT
OUT
HLR
LHR
HLD
LHD
HLR
LHR
CC
CC
L
CC
CC
C
= 3k, C
= 3.3V
= 5V
= 5V, R
= 3.3V, R
= 0mA
= 8mA
= 0mA
= – 8mA
(Figure 2) (Normal Mode)
(Figure 2) (Receiver Alive Mode)
(Figure 2) (Receiver Alive Mode)
(Figure 1)
(Figure 1)
(Figure 2) (Normal Mode)
L
L
= 1000pF, One Driver Switching
= 3k, C
L
= 3k, C
CC
CC
L
= 3.3V
= 5V
= 51pF
L
= 2500pF
CC
= 3.3V or 5V
Note 3: Supply current measurement in Shutdown is performed with
V
Note 4: Supply current measurement in Receiver Alive mode is performed
with V
DREN
DREN
and V
= 0V and V
RXEN
= 0V.
RXEN
= V
CC
.
MIN
MIN
2.0
2.4
120
3
– 8.0
– 7.0
TYP
TYP
0.6
0.8
0.2
250
8.0
7.5
0.2
15
2.5
2.5
0.3
0.2
1.0
0.2
8
LTC1348
MAX
MAX
2.0
2.5
0.8
30
10
30
4
4
1
1
4
4
UNITS
UNITS
3
kbps
V/ s
V/ s
mA
mA
ms
V
V
V
V
A
A
V
V
V
s
s
s
s
s
s