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ML145407-6P 数据表(PDF) 1 Page - LANSDALE Semiconductor Inc.

部件名 ML145407-6P
功能描述  5 Volt Only Driver
Download  8 Pages
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制造商  LANSDALE [LANSDALE Semiconductor Inc.]
网页  http://www.lansdale.com
标志 LANSDALE - LANSDALE Semiconductor Inc.

ML145407-6P 数据表(HTML) 1 Page - LANSDALE Semiconductor Inc.

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Issue A
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.
This device offers the following performance features:
• Operating Temperature Range = TA –40° to +85°C
Drivers
• ± 7.5 V Output Swing
• 300Ω Power–Off Impedance
• Output Current Limiting
• TTL and CMOS Compatible Inputs
• Slew Rate Range Limited from 4 V/µs to 30 V/µs
Receivers
• + 25 V Input Range
• 3 to 7 kΩ Input Impedance
• 0.8 V Hysteresis for Enhanced Noise Immunity
Charge Pumps
• + 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
P DIP 20 = RP
PLASTIC DIP
CASE 738
SOG 20 = -6P
SOG PACKAGE
CASE 751D
20
1
20
1
CROSS REFERENCE/ORDERING INFORMATION
MOTOROLA
P DIP 20
MC145407P
ML145407RP
SOG 20
MC145407DW
ML145407-6P
LANSDALE
PACKAGE
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from
ML to MLE.
R
R
D
R
D
D
C2+
GND
C2–
VSS
Rx1
Tx1
Rx2
Tx2
Rx3
Tx3
C1+
VCC
C1–
VDD
DO1
DI1
DO2
DI2
DO3
DI3
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
PIN ASSIGNMENT
D = DRIVER
R = RECEIVER


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