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参数资料
| 型号： | LTC1334ISW#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC CMOS TXRX MULTIPROTOCL 28SOIC |
| 标准包装： | 1,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 3/3 |
| 规程： | RS232，RS485 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC |
| 包装： | 带卷 (TR) |
2
LTC1334
A
U
G
W
A
W
U
W
A
R
BSOLUTEXI
TI
S
ORDER PART
NUMBER
LTC1334CG
LTC1334CNW
LTC1334CSW
LTC1334IG
LTC1334ISW
(Note 1)
Supply Voltage (VCC) ............................................. 6.5V
Input Voltage
Drivers ................................... – 0.3V to (VCC + 0.3V)
Receivers ............................................. – 25V to 25V
ON/OFF, LB, SEL1, SEL2 ........ – 0.3V to (VCC + 0.3V)
Output Voltage
Drivers ................................................. – 18V to 18V
Receivers ............................... – 0.3V to (VCC + 0.3V)
Short-Circuit Duration
Output ........................................................ Indefinite
VDD, VEE, C1+, C1–, C2+, C2–.......................... 30 sec
Operating Temperature Range
Commercial ........................................... 0
°C to 70°C
Industrial ............................................ – 40
°C to 85°C
Storage Temperature Range ................ – 65
°C to 150°C
Lead Temperature (Soldering, 10 sec)................ 300
°C
WU
U
PACKAGE/ORDER I FOR ATIO
TJMAX = 125°C, θJA = 90°C/W (G)
TJMAX = 125°C, θJA = 56°C/W (NW)
TJMAX = 125°C, θJA = 85°C/W (SW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C2+
C2–
VCC
RB1
RA1
DZ1/DE1
DY1
LB
ON/OFF
DY2
DZ2/DE2
RA2
RB2
VEE
C1+
C1–
VDD
A1
B1
Y1
Z1
SEL1
SEL2
Z2
Y2
B2
A2
GND
SW PACKAGE
28-LEAD PLASTIC SO WIDE
G PACKAGE
28-LEAD PLASTIC SSOP
NW PACKAGE
28-LEAD PDIP WIDE
Consult factory for Military grade parts.
DC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RS485 Driver (SEL1 = SEL2 = High)
VOD1
Differential Driver Output Voltage (Unloaded)
IO = 0
q
6V
VOD2
Differential Driver Output Voltage (With Load)
Figure 1, R = 50
(RS422)
q
2.0
6
V
Figure 1, R = 27
(RS485)
q
1.5
6
V
VOD
Change in Magnitude of Driver Differential
Figure 1, R = 27
or R = 50
q
0.2
V
Output Voltage for Complementary Output States
VOC
Driver Common Mode Output Voltage
Figure 1, R = 27
or R = 50
q
3V
VOC
Change in Magnitude of Driver Common Mode
Figure 1, R = 27
or R = 50
q
0.2
V
Output Voltage for Complementary Output States
IOSD
Driver Short-Circuit Current
– 7V
≤ VO ≤ 12V, VO = High
q
35
250
mA
– 7V
≤ VO ≤ 12V, VO = Low (Note 4)
q
10
250
mA
IOZD
Three-State Output Current (Y, Z)
– 7V
≤ VO ≤ 12V
q
±5
±500
A
RS232 Driver (SEL1 = SEL2 = Low)
VO
Output Voltage Swing
Figure 4, RL = 3k, Positive
q
5
6.5
V
Figure 4, RL = 3k, Negative
q
–5
–6.5
V
IOSD
Output Short-Circuit Current
VO = 0V
q
±60
mA
Driver Inputs and Control Inputs
VIH
Input High Voltage
D, DE, ON/OFF, SEL1, SEL2, LB
q
2V
VIL
Input Low Voltage
D, DE, ON/OFF, SEL1, SEL2, LB
q
0.8
V
IIN
Input Current
D, SEL1, SEL2
q
±10
A
DE, ON/OFF, LB
q
–4
– 15
A
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, C1 = C2 = C3 = C4 = 0.1F (Notes 2, 3)
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