參數(shù)資料
型號(hào)： LTC1348I
廠商： Linear Technology Corporation
英文描述： Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset 14-SOIC 0 to 70
中文描述： 3.3V/5V的低功耗收發(fā)器的RS232 3-Driver/5-Receiver
文件頁(yè)數(shù)： 3/8頁(yè)
文件大?。?/td> 243K
代理商： LTC1348I
3
LTC1348
ELECTRICAL C
V
CC
= 3V to 5.5V, C1 to C4 = 0.1
μ
F, unless otherwise noted.
HARA TERISTICS
C
D
PARAMETER
Power Supply Generator
V
+
Output Voltage
CONDITIONS
MIN
TYP
MAX
UNITS
I
OUT
= 0mA
I
OUT
= 8mA
I
OUT
= 0mA
I
OUT
= –8mA
Shutdown to Turn-On
8.0
7.5
–8.0
–7.0
0.2
V
V
V
V
V
–
Output Voltage
Supply Rise Time
Power Supply
V
CC
Supply Current
ms
No Load (Note 2) V
CC
= 3.3V
No Load (Note 2) V
CC
= 5V
Receiver Alive Mode (Note 4) V
CC
= 3.3V or 5V
Shutdown (Note 3)
G
G
G
0.6
0.8
15
0.2
2.0
2.5
30
10
0.8
mA
mA
μ
A
μ
A
Supply Leakage Current (V
CC
)
Driver/Receiver Enable Threshold Low
Driver/Receiver Enable Threshold High
Driver/Receiver Enable Threshold High
G
G
V
V
V
V
CC
= 3.3V
V
CC
= 5V
G
2.0
2.4
G
AC ELECTRICAL CHARACTERISTICS
V
CC
= 3V to 5.5V, C1 to C4 = 0.1
μ
F, unless otherwise noted.
PARAMETER
Maximum Data Rate
Slew Rate
CONDITIONS
R
L
= 3k, C
L
= 1000pF, One Driver Switching
V
CC
= 5V, R
L
= 3k, C
L
= 51pF
V
CC
= 3.3V, R
L
= 3k, C
L
= 2500pF
t
HLD
(Figure 1)
t
LHD
(Figure 1)
t
HLR
(Figure 2) (Normal Mode)
t
LHR
(Figure 2) (Normal Mode)
t
HLR
(Figure 2) (Receiver Alive Mode)
t
LHR
(Figure 2) (Receiver Alive Mode)
MIN
120
TYP
250
8
MAX
UNITS
kbps
V/
μ
s
V/
μ
s
30
3
Driver Propagation Delay
(TTL to RS232)
Receiver Propagation Delay
(RS232 to TTL)
G
G
2.5
2.5
0.3
0.2
1.0
0.2
4
4
1
1
4
4
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
G
G
G
G
Note 3:
Supply current measurement in Shutdown is performed with
V
DREN
and V
RXEN
= 0V.
Note 4:
Supply current measurement in Receiver Alive mode is performed
with V
DREN
= 0V and V
RXEN
= V
CC
.
The
G
denotes specifications which apply over the full operating
temperature range (0
°
C
≤
T
A
≤
70
°
C for Commercial grade and
–40
°
C
≤
T
A
≤
85
°
C for Industrial grade).
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
DREN
and V
RXEN
= V
CC
.
相關(guān)PDF資料
PDF描述
LTC1349C Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset 14-SOIC 0 to 70
LTC1349CG Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset 14-SOIC 0 to 70
LTC1349CN Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset 14-SOIC 0 to 70
LTC1349CS 5V Low Power RS232 3-Driver/5-Receiver Transceiver with 2 Receivers Active in SHUTDOWN
LTC1349I Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset 14-PDIP 0 to 70
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