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參數資料
| 型號： | LT1280AI |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 外設及接口 |
| 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： | 1/8頁 |
| 文件大小： | 250K |
| 代理商： | LT1280AI |
1
LT1280A/LT1281A
Low Power 5V RS232
Dual Driver/Receiver with
0.1
μ
F Capacitors
U
ESCRIPTIO
The LT
1280A/LT1281A are dual RS232 driver/receiver
pairs with integral charge pump to generate RS232 volt-
age levels from a single 5V supply. These circuits feature
rugged bipolar design to provide operating fault tolerance
and ESD protection unmatched by competing CMOS
designs. Using only 0.1
μ
F external capacitors, these cir-
cuits consume only 40mW of power, and can operate to
120kbaud even while driving heavy capacitive loads. New
ESD structures on the chip allow the LT1280A/LT1281A to
survive multiple
±
10kV strikes, eliminating the need for
costly TransZorbs
on the RS232 line pins. The LT1280A/
LT1281A are fully compliant with EIA RS232 standards.
Driver outputs are protected from overload, and can be
shorted to ground or up to
±
30V without damage. During
shutdown or power-off conditions, driver and receiver
outputs are in a high impedance state, allowing line
sharing.
The LT1281A is available in 16-pin DIP and SO packages.
The LT1280A is supplied in 18-pin DIP and SO packages
for applications which require shutdown.
R
C
L
= 50pF
Output Waveforms
LT1280A TA02
DRIVER
OUTPUT
R
= 3k
C
L
= 2500pF
RECEIVER
OUTPUT
INPUT
S
FEATURE
D
, LTC and LT are registered trademarks of Linear Technology Corporation.
TransZorb is a registered trademark of General Instruments, GSI
I
Portable Computers
I
Battery-Powered Systems
I
Power Supply Generator
I
Terminals
I
Modems
U
S
A
O
PPLICATI
U
A
O
PPLICATI
TYPICAL
5k
5k
0.1
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
LOGIC
INPUTS
LOGIC
OUTPUTS
ON/OFF
18
10
13
11
12
6
5
4
2
16
9
14
8
15
7
3
17
5V INPUT
V
+
OUT
V
–
OUT
RS232 OUTPUT
RS232 OUTPUT
RS232 INPUT
RS232 INPUT
LT1280A TA01
LT1280A
+
+
+
+
I
10mA Max Supply Current
I
ESD Protection over
±
10kV
I
Uses Small Capacitors: 0.1
μ
F
I
120kBaud Operation for R
L
= 3k, C
L
= 2500pF
I
250kBaud Operation for R
L
= 3k, C
L
= 1000pF
I
Outputs Withstand
±
30V Without Damage
I
CMOS Comparable Low Power: 40mW
I
Operates from a Single 5V Supply
I
Rugged Bipolar Design
I
Outputs Assume a High Impedance State When Off
or Powered Down
I
Meets All RS232 Specifications
I
Available With or Without Shutdown
I
Absolutely No Latch-up
I
Available in SO Package
相關PDF資料 |
PDF描述 |
|---|---|
| LT1280AIN | 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 |
| LT1280AISW | 8-Bit Identity Comparators (P=Q) w/ Enable, Open Collector Outputs, 20K Ohm Q-Input Pullup Resistor 20-SOIC 0 to 70 |
| LT1281AC | 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 |
| LT1281ACN | 8-Bit Identity Comparators (P=Q) w/ Enable, Open Collector Outputs, 20K Ohm Q-Input Pullup Resistor 20-PDIP 0 to 70 |
| LT1281ACSW | 8-Bit Identity Comparators (P=Q) w/ Enable, Open Collector Outputs, 20K Ohm Q-Input Pullup Resistor 20-PDIP 0 to 70 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1280AIN | 功能描述:IC DRVR/RCVR 5V RS232 DUAL 18DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程: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 |
| LT1280AIN#PBF | 功能描述:IC DRVR/RCVR 5V RS232 DUAL 18DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程: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 |
| LT1280AISW | 功能描述:IC DRVR/RCVR 5V RS232 DUAL18SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程: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 |
| LT1280AISW#PBF | 功能描述:IC DRVR/RCVR 5V RS232 DUAL18SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程: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 |
| LT1280AISW#TR | 功能描述:IC TXRX 5V RS232 DUAL LP 18-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程: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 |
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