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參數(shù)資料
| 型號(hào)： | LT1381IS#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 0K |
| 描述： | IC DVR/RCVR 5V RS232 DUAL 16SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 2/2 |
| 規(guī)程： | RS232 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC |
| 包裝： | 帶卷 (TR) |
1
LT1381
Low Power 5V RS232 Dual
Driver/Receiver with
0.1
F Capacitors
R
Output Waveforms
DRIVER
OUTPUT
RL = 3k
CL = 2500pF
RECEIVER
OUTPUT
CL = 50pF
INPUT
U
S
A
O
PPLICATI
s
Portable Computers
s
Battery-Powered Systems
s
Power Supply Generator
s
Terminals
s
Modems
U
A
O
PPLICATI
TYPICAL
D
U
ESCRIPTIO
S
FEATURE
s
ESD Protection over
±10kV
s
Low Cost
s
Uses Small Capacitors: 0.1
F
s
CMOS Comparable Low Power: 40mW
s
Operates from a Single 5V Supply
s
120kBaud Operation for RL = 3k, CL = 2500pF
s
250kBaud Operation for RL = 3k, CL = 1000pF
s
Rugged Bipolar Design
s
Outputs Assume a High Impedance State When
Powered Down
s
Absolutely No Latchup
s
Available in Narrow SO Package
5k
0.1
F
LOGIC
INPUTS
LOGIC
OUTPUTS
9
12
10
11
5
4
3
1
15
8
13
7
14
6
2
16
5V INPUT
V+ OUT
V – OUT
RS232 OUTPUT
RS232 INPUT
LT1381 TA01
LT1381
0.1
F
0.1
F
0.1
F
+
S
, LTC and LT are registered trademarks of Linear Technology Corporation.
TransZorb is a registered trademark of General Instruments, GSI
The LT
1381 is a dual RS232 driver/receiver pair with
integral charge pump to generate RS232 voltage levels
from a single 5V supply. The circuit features rugged
bipolar design to provide operating fault tolerance and
ESD protection unmatched by competing CMOS designs.
Using only 0.1
F external capacitors, the circuit con-
sumes only 40mW of power and can operate to 120kbaud
even while driving heavy capacitive loads. New ESD struc-
tures on the chip allow the LT1381 to survive multiple
±10kVstrikes,eliminatingtheneedforcostlyTransZorbs
on the RS232 line pins. Driver outputs are protected from
overload and can be shorted to ground or up to
±25V
without damage. During power-off conditions, driver and
receiver outputs are in a high impedance state, allowing
line sharing.
LT1381 TA02
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