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參數(shù)資料
| 型號(hào)： | LT1331CSW#TRPBF |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX 5V/3V RS232 28-SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 3/5 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3.3 V，5V |
| 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： | 帶卷 (TR) |
1
LT1331
3V RS562 or 5V/3V RS232
Transceiver with One Receiver
Active in Shutdown
S
FEATURE
D
U
ESCRIPTIO
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 VL, while the onboard charge
pump and drivers operate from 5V or 3V supply VCC.
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 VCC 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 VCC = 5V. If VCC = 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.
s
RS232 Compatible 3V Operation
s
3V Logic Interface
s
ESD Protection Over
±10kV
s
120kbaud Operation for RL = 3k, CL = 2500pF
s
250kbaud Operation for RL = 3k, CL = 1000pF
s
One Low Power Receiver Remains Active While
in Shutdown
s
60
A Supply Current in Shutdown
s
Low Power Driver Disable Mode
s
Uses Small Capacitors: 0.1
F, 0.2F
s
CMOS Comparable Low Power: 60mW
s
Easy PC Layout: Flowthrough Architecture
s
Rugged Bipolar Design
s
Outputs Assume a High Impedance State When
Off or Powered Down
s
Notebook Computers
s
Palmtop Computers
U
S
A
O
PPLICATI
, LTC and LT are registered trademarks of Linear Technology Corporation.
R
1331 TA02
RECEIVER
OUTPUT
CL = 50pF
DRIVER
OUTPUT
RL = 3k
CL = 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
V+
0.1
F
2
× 0.1F
2
× 0.1F
0.1
F
GND
DRIVER DISABLE
NC
TO LINE
TO LOGIC
V –
1331 TA01
RX5 OUT (LOW-Q)
RING DETECT IN
CONTROLLER
OR
PROCESSOR
SHUTDOWN
CONTROL OUT
LT1331
VCC = 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 VL
+
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| LT1332CG#PBF | 功能描述:IC TXRX RS232 W/12V VPP 28-SSOP 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 |
| LT1332CG#TR | 功能描述:IC TXRX RS232 LP 12V VPP 28SSOP 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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