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MC145403 数据表(PDF) 1 Page - Motorola, Inc

部件名 MC145403
功能描述  DRIVER / RECEIVERS
Download  9 Pages
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制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

MC145403 数据表(HTML) 1 Page - Motorola, Inc

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MC145403
•MC145404•MC145405•MC145408
MOTOROLA
1
Drivers/Receivers
EIA–232–E and CCITT V.28
These devices are silicon gate CMOS ICs that combine both the transmitter
and receiver to fulfill the electrical specifications of EIA Standard 232–E and
CCITT V.28. The drivers feature true TTL input compatibility, slew rate limiting
outputs, 300
Ω power–off source impedance, and output typically switching to
within 25% of the supply rails. The receivers can handle up to
± 25 V while
presenting 3 to 7 k
Ω impedance. Hysteresis in the receivers aid in the reception
of noisy signals. By combining both drivers and receivers in a single CMOS
chip, these devices provide efficient, low–power solutions for both EIA–232–E
and V.28 applications.
These devices offer the following performance features:
Drivers
•± 5 to ± 12 V Supply Range
• 300 Ω Power–Off Source Impedance
• Output Current Limiting
• TTL and CMOS Compatible Inputs
• Driver Slew Rate Range Limited to 30 V/µs Maximum
Receivers
•± 25 V Input Range
• 3 to 7 kΩ Input Impedance
• 0.8 V of Hysteresis for Enhanced Noise Immunity
• TTL and CMOS Compatible Outputs
Available Driver/Receiver Combinations
Device
Drivers
Receivers
Figure
No. of Pins
MC145403
3
5
1
20
MC145404
4
4
2
20
MC145405
5
3
3
20
MC145408
5
5
4
24
Alternative EIA–232 devices to consider are:
Three Supply
Single Supply
MC145406 (3 x 3)
MC145407 (3 x 3)
MC145705 (2 x 3) with Power Down
MC145706 (3 x 2) with Power Down
MC145707 (3 x 3) with Power Down
Order this document
by MC145403/D
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MC145403
MC145404
MC145405
MC145408
P SUFFIX
PLASTIC DIP
CASE 738
ORDERING INFORMATION
MC145403P
Plastic DIP
MC145404P
Plastic DIP
MC145405P
Plastic DIP
MC145408P
Plastic DIP
MC145403DW
SOG Package
MC145404DW
SOG Package
MC145405DW
SOG Package
MC145408DW
SOG Package
MC145405SD
SSOP
P SUFFIX
PLASTIC DIP
CASE 724
DW SUFFIX
SOG PACKAGE
CASE 751E
DW SUFFIX
SOG PACKAGE
CASE 751D
20
1
24
1
20
1
24
1
SD SUFFIX
SSOP
CASE 940B
20
1
© Motorola, Inc. 1997
REV 2
1/97
TN97010600


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