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參數(shù)資料
| 型號： | LT1237CG |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | CAP 5.0UF 220VAC METALLIZED POLY |
| 中文描述： | TRIPLE LINE TRANSCEIVER, PDSO28 |
| 封裝： | 0.209 INCH, PLASTIC, SSOP-28 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 175K |
| 代理商： | LT1237CG |
1
LT1237
5V RS232 Transceiver with
Advanced Power Management and
One Receiver Active in Shutdown
I
One Receiver Remains Active While in Shutdown
I
ESD Protection over
±
15kV
I
Uses Small Capacitors: 0.1
μ
F, 0.2
μ
F, 1.0
μ
F
I
60
μ
A Supply Current in Shutdown
I
Pin Compatible with LT1137A
I
120kBaud Operation for R
L
= 3k, C
L
= 2500pF
I
250kBaud Operation for R
L
= 3k, C
L
= 1000pF
I
Operates to 120kBaud
I
CMOS Comparable Low Power 30mW
I
Operates from a Single 5V Supply
I
Easy PC Layout—Flowthrough Architecture
I
Rugged Bipolar Design
I
Outputs Assume a High Impedance State When Off
or Powered Down
I
Absolutely No Latchup
I
Available in SO and SSOP Packages
The LT
1237 is an advanced low power three driver, five
receiver RS232 transceiver. Included on the chip is a
shutdown pin for reducing supply current near zero.
During shutdown one receiver remains active to detect
incoming RS232 signals, for example, to wake up a
system.
The LT1237 is fully compliant with all EIA RS232 specifi-
cations. New ESD structures on the chip allow the LT1237
to survive multiple
±
15kV strikes, eliminating the need for
costly TransZorbs
on the RS232 line pins.
The LT1237 operates in excess of 120kbaud even driving
heavy capacitive loads. Two shutdown modes allow the
driver outputs to be shut down separately from the receiv-
ers for more versatile control of the RS232 interface.
During shutdown, drivers and receivers assume a high
impedance state.
I
Notebook Computers
I
Palmtop Computers
, LTC and LT are registered trademarks of Linear Technology Corporation.
TransZorb is a registered trademark of General Instruments, GSI
Output Waveforms
R
1237 TA02
RECEIVER
OUTPUT
C
L
= 50pF
INPUT
DRIVER
OUTPUT
R
= 3k
C
L
= 2500pF
LT1237 TA01
5V V
CC
1.0
μ
F
2
×
0.1
μ
F
0.1
μ
F
TO
LINE
LT1237
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DRIVER 1 OUT
RX1 IN
DRIVER 2 OUT
RX2 IN
RX3 IN
RX4 IN
DRIVER 3 OUT
RX5 IN (LOW-Q)
ON/OFF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
2
×
0.1
μ
F
DRIVER 1 IN
RX1 OUT
DRIVER 2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DRIVER 3 IN
RX5 OUT (LOW-Q)
GND
DRIVER
DISABLE
RING DETECT IN
SHUTDOWN
CONTROL OUT
μ
CONTROLLER OR
μ
PROCESSOR
TO LOGIC
V
–
V
+
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT1237CG#PBF | 功能描述:IC TXRX 5V RS232 ADV LOPWR28SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:1 系列:- 類型:線路收發(fā)器 驅(qū)動器/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） 供應商設備封裝:28-SOIC 包裝:Digi-Reel® 產(chǎn)品目錄頁面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6 |
| LT1237CG#TR | 功能描述:IC TXRX 5V RS232 ADV LOPWR28SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/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） 供應商設備封裝:28-SOIC 包裝:管件 |
| LT1237CG#TRPBF | 功能描述:IC TXRX 5V RS232 ADV LOPWR28SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標準包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/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） 供應商設備封裝:28-SOIC 包裝:管件 |
| LT1237CJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transceiver |
| LT1237CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Transceiver |
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