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參數(shù)資料
| 型號(hào)： | LT1039A |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 電可擦除可編程邏輯器件 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 273K |
| 代理商： | LT1039A |
7
LT1039A/LT1039A-16
APPLICATIO
S I
N
FOR
ATIO
U
When driving CMOS logic from a receiver that will be used
in the shutdown mode and there is no other active receiver
on the line, a 51k resistor can be placed from the logic input
to V
CC
to force a definite logic level when the receiver
output is in a high impedance state.
W
U
Keeping Alive One Receiver While in Shutdown
LT1039A
25k
LOGIC
SHUTDOWN
INPUT
2
3
16
17
BIAS
RS232
INPUT
ON/OFF
LOGIC
OUTPUT
1039A AI07
RS232 Compatible Shutdown Control Line
LT1039A
25k
2
3
16
17
BIAS
RS232
SHUTDOWN
INPUT
ON/OFF
1039A AI08
Driving CMOS Logic from a Receiver
LT1039A
RECEIVER
RS232
INPUT
ON/OFF
INPUT
LOGIC
OUTPUT
*FORCES LOGIC INPUT STATE
WHEN V
ON/OFF
IS LOW
51k*
V
CC
1039A AI06
CMOS
LOGIC
To protect against receiver input overloads in excess of
±
30V, a voltage clamp can be placed on the data line and
still maintain RS232 compatibility.
Input Overvoltage Protection
RS232
INPUT
LOGIC
OUTPUT
RECEIVER
1039A AI07
30k
1k
30V
30V
5.6k
Driver inputs should not be allowed to float. Any unused
inputs should be tied to V
CC
.
The BIAS pin is used to “keep alive” one receiver while in
the shutdown mode (all other circuitry being inactive).
This allows a system to be in shutdown and still have one
active receiver for transferring data.
It can also be used to make an RS232 compatible shut-
down control line. Driving the BIAS pin low through a
resistance of 24k to 30k keeps the receiver active. Do not
drive the BIAS pin directly from a logic output without the
series resistor. An unused BIAS pin should be left open.
The receiver input impedance of the LT1039A is nominally
30k
. For applications requiring a 5k
input impedance,
a 5.6k resistor can be connected from the receiver input to
ground.
5k
Impedance Matching
1039A AI08
RS232
INPUT
LOGIC
OUTPUT
RECEIVER
30k
5.6k
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1039AC | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| LT1039ACN | TERM BLOCK HDR 5.08MM 4POS PCB |
| LT1039ACN16 | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| LT1039ACSW | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| LT1039AI | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1039ACN | 功能描述:IC DRIVR/RCVR TRIPLE-RS232 18DIP 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 |
| LT1039ACN#PBF | 功能描述:IC DRIVR/RCVR TRIPLE-RS232 18DIP 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 |
| LT1039ACN16#PBF | 功能描述:IC DRIVR/RCVR TRIPLE-RS232 16DIP 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 |
| LT1039ACSW | 功能描述:IC DRIVR/RCVR TRIPL-RS232 18SOIC 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 |
| LT1039ACSW#PBF | 功能描述:IC DRIVR/RCVR TRIPL-RS232 18SOIC 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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