MC145407DW Freescale Semiconductor, Inc, MC145407DW Datasheet

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MC145407DW

Manufacturer Part Number
MC145407DW
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
5 Volt Only Driver/Receiver
EIA–232–E and CCITT V.28
three receivers to fulfill the electrical specifications of EIA–232–E and CCITT
V.28 while operating from a single + 5 V power supply. A voltage doubler and
inverter convert the + 5 V to
20 kHz oscillator and four inexpensive external electrolytic capacitors. The
three drivers and three receivers of the MC145407 are virtually identical to
those of the MC145406. Therefore, for applications requiring more than three
drivers and/or three receivers, an MC145406 can be powered from an
MC145407, since the MC145407 charge pumps have been designed to
guarantee 5 V at the output of up to six drivers. Thus, the MC145407 provides
a high–performance, low–power, stand–alone solution or, with the MC145406,
a + 5 V only, high–performance two–chip solution.
Drivers
Receivers
Charge Pumps
This document contains information on a new product. Specifications and information herein are subject to change without notice.
REV 1
10/95
MOTOROLA
The MC145407 is a silicon–gate CMOS IC that combines three drivers and
Motorola, Inc. 1995
300
Output Current Limiting
TTL and CMOS Compatible Inputs
Slew Rate Range Limited from 4 V/ s to 30 V/ s
+ 25 V Input Range
3 to 7 k Input Impedance
0.8 V Hysteresis for Enhanced Noise Immunity
+ 5 V to
Supply Outputs Capable of Driving Three On–Chip Drivers and Three
Drivers on the MC145406 Simultaneously
Requires Four Inexpensive Electrolytic Capacitors
On–Chip 20 kHz Oscillator
7.5 V Output Swing
Power–Off Impedance
10 V Dual Charge Pump Architecture
10 V. This is accomplished through an on–board
20
20
MC145407P
MC145407DW
ORDERING INFORMATION
1
MC145407
GND
V SS
1
C2+
C2–
Rx1
Rx2
Rx3
Tx1
Tx2
Tx3
PIN ASSIGNMENT
R = RECEIVER
1
2
3
4
5
6
7
8
9
10
D = DRIVER
R
R
R
D
D
D
Order this document
Plastic DIP
SOG Package
SOG PACKAGE
20
19
18
17
16
15
14
13
12
11
PLASTIC DIP
DW SUFFIX
CASE 751D
CASE 738
by MC145407/D
P SUFFIX
C1+
V CC
C1–
V DD
DO1
DI1
DO2
DI2
DO3
DI3
MC145407
1

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MC145407DW Summary of contents

Page 1

... MOTOROLA Motorola, Inc. 1995 Order this document by MC145407/D MC145407 P SUFFIX PLASTIC DIP CASE 738 SUFFIX SOG PACKAGE 20 CASE 751D 1 ORDERING INFORMATION MC145407P Plastic DIP MC145407DW SOG Package PIN ASSIGNMENT 1 20 C2+ C1 GND C2– C1– ...

Page 2

C3 RECEIVER – 5 Proctection circuit MC145407 2 FUNCTION DIAGRAM CHARGE PUMPS OSC GND V CC VOLTAGE VOLTAGE DOUBLER INVERTER + ...

Page 3

MAXIMUM RATINGS (Voltage polarities referenced to GND) Rating Symbol DC Supply Voltages V CC Input Voltage Range V IR Rx1 – Rx3 Inputs DI1 – DI3 Inputs DC Current per Pin Power Dissipation P D Operating Temperature Range T A ...

Page 4

DRIVER ELECTRICAL SPECIFICATIONS (Voltage polarities referenced to GND = ± 10%; C1, C2, C3 –40 to +85°C) Characteristic Digital Input Voltage Logic 0 Logic 1 Input ...

Page 5

DI1 Tx1 13 8 DI2 Tx2 11 10 DI3 Tx3 V SS GND out = 4 2 Figure 1. Power–Off Source Resistance DRIVERS DI1 – DI3 50 ...

Page 6

APPLICATIONS INFORMATION ESD CONSIDERATIONS ESD protection on IC devices that have their pins acces- sible to the outside world is essential. High static voltages applied to the pins when someone touches them either di- rectly or indirectly can cause damage ...

Page 7

Rx1 DO1 3 14 Tx1 DI1 4 13 Rx2 DO2 MC145406 5 12 Tx2 DI2 6 11 Rx3 DO3 7 10 Tx3 DI3 GND Figure 5. MC145406/MC145407 5 ...

Page 8

SEATING PLANE –A– –B– 20X 0.010 (0.25 18X K Motorola reserves the right to make changes without further notice to ...

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