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參數(shù)資料
| 型號(hào)： | LTC1334CG#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX CMOS MULTIPROTOCL 28SSOP |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 3/3 |
| 規(guī)程： | RS232，RS485 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
12
LTC1334
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Figure 12. Multiprotocol Interface
with Optional, Switchable Terminations
326
25
RX OUT
24
RX OUT
22
DR IN
8
SEL1
23
21
DR IN/ENABLE
LB
VCC
5V
LTC1334 F12
LTC1334
28
C2
C1
2
1
27
VEE
VDD
4
INPUT A
K1A
K1B
120
5
INPUT B
6
OUTPUT A
7
OUTPUT B
13
INPUT A
12
INPUT B
11
OUTPUT A
10
14
OUTPUT B
PORT 1
INTERFACE
20
16
ON/OFF
RX OUT
17
RX OUT
19
DR IN
9
SEL2
18
15
DR IN/ENABLE
PORT 2
INTERFACE
AROMAT CORP (800) 276-6289
ZETEX (516) 543-7100
*
**
0.1
F
0.1
F
0.1
F
0.1
F
0.1
F
120
K2A
120
K2B
120
TERM1
360k
FMMT619**
K1*
TX2A-5V
7.5k
TERM2
360k
FMMT619**
K2*
TX2A-5V
7.5k
5V
Figure 13. Typical Connection for RS232/EIA562 Interface
1/2 LTC1334
LTC1334 F13
19
18
17
16
9
DR IN
RX OUT
4
5
6
7
11
10
13
12
24
25
22
23
8
RX OUT
DR IN
RS232/
EIA562
INTERFACE
LINES
Each receiver in the LTC1334 is designed to present one
unit load (5k
nominal for RS232 and 12k minimum for
RS485) to the cable. Some RS485 and RS422 applications
call for terminations, but these are only necessary at two
nodes in the system and they must be disconnected when
operating in the RS232 mode. A relay is the simplest, low-
est cost method of switching terminations. In Figure 12
TERM1 and TERM2 select 120
terminations as needed.
If terminations are needed in all RS485/RS422 applica-
tions, no extra control signals are required; simply con-
nect TERM1 and TERM2 to SEL1 and SEL2.
Typical Applications
A typical RS232/EIA562 interface application is shown in
Figure 13 with the LTC1334.
A typical connection for a RS485 transceiver is shown in
Figure 14. A twisted pair of wires connects up to 32 drivers
and receivers for half duplex multipoint data transmission.
The wires must be terminated at both ends with resistors
equal to the wire’s characteristic impedance. An optional
shield around the twisted pair helps to reduce unwanted
noise and should be connected to ground at only one end.
Figure 14. Typical Connection for RS485 Interface
5V
4
1/2 LTC1334
1/2
LTC1334
1/2 LTC1334
LTC1334 F14
RX OUT
DR ENABLE
DR IN
5V
120
5
6
7
24
23
22
8
13
12
11
10
9
RX OUT
18
5V
DR ENABLE
76
54
22
DR IN
RX OUT
DR ENABLE
23
24 8
17
DR IN
19
120
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參數(shù)描述 |
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| LTC1334CNW | 功能描述:IC CMOS TXRX MULTIPROTOCOL 28DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| LTC1334CNW#PBF | 功能描述:IC CMOS TXRX MULTIPROTOCOL 28DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:線路收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):5/3 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:Digi-Reel® 產(chǎn)品目錄頁面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6 |
| LTC1334CNWPBF | 制造商:Linear Technology 功能描述:Multiprotocol transceiver,LTC1334CNW |
| LTC1334CSW | 功能描述:IC CMOS TXRX MULTIPROTOCL 28SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| LTC1334CSW#PBF | 功能描述:IC CMOS TXRX MULTIPROTOCL 28SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
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