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MC145407DW

更新时间： 2024-11-23 04:59:27
品牌 Logo 应用领域
LANSDALE 驱动器接口集成电路光电二极管
页数 文件大小 规格书
8页 678K
描述
5 Volt Only Driver/Receiver RS232 EIA-232-E and CCITT V.28

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中文翻译

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MC145407DW 数据手册

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ML145407  
5 Volt Only Driver/Receiver  
RS232 EIA–232–E and CCITT V.28  
Legacy Device: Motorola MC145407  
The ML145407 is a silicon–gate CMOS IC that combines three  
drivers and three receivers to fulfill the electrical specifications of  
RS232 EIA–232–E and CCITT V.28 while operating from a single + 5  
V power supply. A voltage doubler and inverter convert the + 5V to  
10 V. This is accomplished through an on–board 20 kHz oscillator  
and four inexpensive external electrolytic capacitors. The three drivers  
and three receivers of the ML145407 are virtually identical to those of  
the ML145406. Therefore, for applications requiring more than three  
drivers and/or three receivers, an ML145406 can be powered from an  
ML145407, since the ML145407 charge pumps have been designed to  
guarantee 5 V at the output of up to six drivers. Thus, the  
ML145407 provides a high–performance, low–power, stand–alone  
solution or, with the ML145406, a + 5 V only, high–performance  
two–chip solution.  
P DIP 20 = RP  
PLASTIC DIP  
CASE 738  
20  
1
SOG 20 = -6P  
SOG PACKAGE  
CASE 751D  
20  
1
CROSS REFERENCE/ORDERING INFORMATION  
PACKAGE  
P DIP 20  
SOG 20  
MOTOROLA  
LANSDALE  
MC145407P  
ML145407RP  
MC145407DW ML145407-6P  
This device offers the following performance features:  
Note: Lansdale lead free (Pb) product, as it  
becomes available, will be identified by a part  
number prefix change from ML to MLE.  
• Operating Temperature Range = T –40° to +85°C  
A
Drivers  
7.5 V Output Swing  
•
• 300Ω Power–Off Impedance  
• Output Current Limiting  
PIN ASSIGNMENT  
1
20  
• TTL and CMOS Compatible Inputs  
• Slew Rate Range Limited from 4 V/µs to 30 V/µs  
C2+  
C1+  
2
19  
GND  
V
CC  
Receivers  
• + 25 V Input Range  
• 3 to 7 kΩ Input Impedance  
• 0.8 V Hysteresis for Enhanced Noise Immunity  
3
4
18  
17  
C2–  
C1–  
V
V
DD  
SS  
Charge Pumps  
5
6
7
16  
15  
14  
R
R
Rx1  
Tx1  
Rx2  
Tx2  
Rx3  
DO1  
DI1  
• + 5 V to 10 V Dual Charge Pump Architecture  
• Supply Outputs Capable of Driving Three On–Chip Drivers and  
Three Drivers on the ML145406 Simultaneously  
• Requires Four Inexpensive Electrolytic Capacitors  
• On–Chip 20 kHz Oscillator  
D
D
D
DO2  
DI2  
8
13  
12  
11  
9
R
DO3  
10  
Tx3  
DI3  
D = DRIVER  
R = RECEIVER  
Page 1 of 8  
www.lansdale.com  
Issue A  
12345678

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 		IC,LINE TRANSCEIVER,CMOS,5 DRIVER,5 RCVR,SOP,24PIN,PLASTIC
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 		Drivers/Receivers
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