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參數(shù)資料
| 型號(hào)： | LT1331CNW |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 3V RS562 or 5V/3V RS232 Transceiver with One Receiver Active in Shutdown |
| 中文描述： | TRIPLE LINE TRANSCEIVER, PDIP28 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 245K |
| 代理商： | LT1331CNW |
1
LT1331
3V RS562 or 5V/3V RS232
Transceiver with One Receiver
Active in Shutdown
S
FEATURE
D
The LT
1331 is a 3-driver, 5-receiver RS232 transceiver
designed for 3V and mixed 3V/5V systems. Receivers
operate from 3V logic supply V
L
, while the onboard charge
pump and drivers operate from 5V or 3V supply V
CC
.
The transceiver has two shutdown modes. One mode
disables the drivers and the charge pump, the other shuts
down all circuitry except for one low power receiver which
can be used for ring detection. The V
CC
supply may be shut
down while in ring detection mode. While shut down, the
drivers and receivers assume high impedance output
states.
The LT1331 is fully compliant with all EIA-RS232 specifi-
cations when V
CC
= 5V. If V
CC
= 3V, output drive levels are
compatible with all known interface circuits. Special bipo-
lar construction techniques protect the drivers and receiv-
ers beyond the fault conditions stipulated for RS232. The
RS232 I/O pins are resilient to multiple
±
10kV ESD strikes.
An advanced driver output stage operates up to 120kbaud
while driving heavy capacitive loads.
U
ESCRIPTIO
I
RS232 Compatible 3V Operation
I
3V Logic Interface
I
ESD Protection Over
±
10kV
I
120kbaud Operation for R
L
= 3k, C
L
= 2500pF
I
250kbaud Operation for R
L
= 3k, C
L
= 1000pF
I
One Low Power Receiver Remains Active While
in Shutdown
I
60
μ
A Supply Current in Shutdown
I
Low Power Driver Disable Mode
I
Uses Small Capacitors: 0.1
μ
F, 0.2
μ
F
I
CMOS Comparable Low Power: 60mW
I
Easy PC Layout: Flowthrough Architecture
I
Rugged Bipolar Design
I
Outputs Assume a High Impedance State When
Off or Powered Down
I
Notebook Computers
I
Palmtop Computers
U
S
A
O
PPLICATI
, LTC and LT are registered trademarks of Linear Technology Corporation.
R
1331 TA02
RECEIVER
OUTPUT
C
L
= 50pF
DRIVER
OUTPUT
R
= 3k
C
L
= 2500pF
INPUT
U
A
O
PPLICATI
TYPICAL
3.3V Operation
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DRIVER 1 IN
RX1 OUT
DRIVER 2 IN
RX2 OUT
RX3 OUT
RX4 OUT
DRIVER 3 IN
GND
DRIVER DISABLE
NC
V
+
0.1
μ
F
2
×
0.1
μ
F
2
×
0.1
μ
F
0.1
μ
F
TO LINE
TO LOGIC
V
–
1331 TA01
RING DETECT IN
μ
CONTROLLER
OR
μ
PROCESSOR
SHUTDOWN
CONTROL OUT
LT1331
V
CC
= 3.3V
DRIVER 1 OUT
RX1 IN
DRIVER 2 OUT
RX2 IN
RX3 IN
RX4 IN
DRIVER 3 OUT
RX5 IN (LOW-Q)
ON/OFF
3.3V V
L
+
+
+
+
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1331CNW#PBF | 功能描述:IC TXRX 5V/3V RS232 28-DIP 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:1,140 系列:AU 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:CAN 電源電壓:5.3 V ~ 27 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SO 包裝:管件 其它名稱:935267940512AU5790D14AU5790D14-ND |
| LT1331CS | 制造商:Linear Technology 功能描述:LINE TRANSCEIVER, PDSO28 |
| LT1331CSW | 功能描述:IC TXRX 5V/3V RS232 28-SOIC 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 |
| LT1331CSW#PBF | 功能描述:IC TXRX 5V/3V RS232 28-SOIC 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: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 |
| LT1331CSW#TR | 功能描述:IC TXRX 5V/3V RS232 SHDWN 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 |
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