ST75185CD STMICROELECTRONICS [STMicroelectronics], ST75185CD Datasheet

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ST75185CD

Manufacturer Part Number
ST75185CD
Description
MULTIPLE RS-232 DRIVERS AND RECEIVERS
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet

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the EIA/TIA 232-E and ITU (formally CCITT) v.28
standards.
interchange between a host computer and
peripheral at signalling rates up to 20k-bits/s. The
switching speeds of the ST75185 are fast enough
to support rates up to 120K-bits/s with lower
capacitive loads (shorter cables). Interoperability
at the higher signalling rates cannot be assured
DESCRIPTION
The ST75185 contains three drivers and five
receivers.
connector design in order to decrease the part
count, reduce the board space required and allow
easy interconnection of the UART and serial port
connector of IBM PC/AT
bipolar circuits and processing of the ST75185
provides a rugged low-cost solution for this
function at the expense of quiescent power and
external passive components relative to the
ST75C185.
The ST75185 complies with the requirements of
ORDERING CODES
December 2002
ST75185CTR
ST75185CDR
ST75185CPR
ST75185CD
MEETS AND EXCEEDS THE
REQUIREMENTS OF EIA/TIA-232-E AND
ITUV.28 STANDARD
SINGLE CHIP WITH EASY INTERFACE
BETWEEN UART AND SERIAL PORT
CONNECTOR OF IBM PC/AT
COMPATIBLES
DESIGNED TO SUPPORT DATA RATES UP
TO 120 Kbps
PINOUT COMPATIBLE WITH ST75C185
Type
The
These
Temperature
pinout
0 to 70 °C
0 to 70 °C
0 to 70 °C
0 to 70 °C
Range
standards
MULTIPLE RS-232 DRIVERS AND RECEIVERS
TM
matches
and compatibles. The
TM
are
AND
the
TSSOP20 (Tape & Reel)
SSOP-20 (Tape & Reel)
for
SO-20 (Tape & Reel)
DB9S
SO-20 (Tube)
data
Package
unless the designer has design control of the
cable and the interface circuits at the both ends.
For interoperability at signalling rates to 120
K-bits/s, use of EIA/ITA-423-B (ITU v.10) and EIA/
ITA-422-B
recommended.
The ST75185 is characterized for operation over
the range of 0°C to 70°C.
SOP
(ITU
40 parts per tube / 25 tubes per box
SSOP
v.11)
2500 parts per reel
1000 parts per reel
1350 parts per reel
Comments
TSSOP
ST75185
standards
1/18
are

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ST75185CD Summary of contents

Page 1

... Interoperability at the higher signalling rates cannot be assured ORDERING CODES Temperature Type Range ST75185CTR °C ST75185CD °C ST75185CDR °C ST75185CPR °C December 2002 TM AND the DB9S unless the designer has design control of the cable and the interface circuits at the both ends. ...

Page 2

ST75185 PIN CONNECTION IEC LOGIC SYMBOL AND LOGIC DIAGRAM PIN DESCRIPTION PlN N° 2/18 SYMBOL V Supply Voltage (+12V) DD ...

Page 3

ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE Symbol V Supply Voltage (Note Supply Voltage (Note Supply Voltage (Note Input Voltage Range (DRIVER Input Voltage Range (RECEIVER ...

Page 4

ST75185 SUPPLY CURRENTS Symbol Parameter I Supply Current from Supply Current from Supply Current from V CC DRIVER ELECTRICAL CHARACTERISTICS OVER OPERATING FREE-AIR TEMPERATURE RANGE ( -9V ...

Page 5

DRIVER SWITCHING CHARACTERISTICS (V Symbol Parameter t Propagation Delay Time, Low to High PLH Level Output t Propagation Delay Time, High to Low PHL Level Output t Transition Time Low to High Level TLH Output t Transition Time High to ...

Page 6

ST75185 APPLICATION CIRCUITS Figure 1 : Driver Test Circuit for V 6/ and I OH SO(H) SO(L) ...

Page 7

Figure 2 : Driver Test Circuit for I Figure 3 : Driver Test Circuit Figure 4 : Driver Voltage Waveforms and ST75185 7/18 ...

Page 8

ST75185 Figure 5 : Receiver Test Circuit for I Figure 6 : Receiver Test Circuit for V Figure 7 : Receiver Test Circuit 8/ ...

Page 9

Figure 8 : Receiver Voltage Waveforms NOTE A: The pulse generator has the following characteristics: t NOTE B: C includes probe and jig capacitance. L Figure 9 : Driver Voltage Transfer Characteristics Figure 10 : Driver Short Circuit Output Current ...

Page 10

ST75185 Figure 13 : Driver Output Slew Rate vs Load Capacitance Figure 14 : Receiver Threshold vs Temperature 10/18 Figure 15 : Receiver Threshold vs Supply Voltage ...

Page 11

APPLICATION INFORMATION: DIODES ON POWER SUPPLY Diodes placed in series with the VDD and VSS leads protect the ST75185 in the fault condition in which the devices output are shorted to ±15V and the power supplies are at low state ...

Page 12

ST75185 DIM. MIN 0 0. 12.60 E 10. 7. 12/18 SO-20 MECHANICAL DATA mm. TYP MAX. 2.65 0.2 2.45 0.49 0.32 0.5 45˚ (typ.) ...

Page 13

SSOP20 MECHANICAL DATA DIM. MIN 0.05 A2 1.65 b 0.22 c 0.09 D 6 0.65 BSC K 0˚ PIN 1 IDENTIFICATION 1 mm. TYP MAX. MIN. 2 ...

Page 14

ST75185 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 6.4 E 6 0˚ PIN 1 IDENTIFICATION 1 14/18 TSSOP20 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...

Page 15

Tape & Reel SO-20 MECHANICAL DATA mm. DIM. MIN 12 10.8 Bo 13.2 Ko 3.1 Po 3.9 P 11.9 TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 30.4 11 0.425 13.4 0.520 ...

Page 16

ST75185 Tape & Reel SSOP20 MECHANICAL DATA DIM. MIN 12 8.4 Bo 7.7 Ko 2.9 Po 3.9 P 11.9 16/18 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 22.4 8.6 0.331 ...

Page 17

Tape & Reel TSSOP20 MECHANICAL DATA mm. DIM. MIN 12 6.8 Bo 6.9 Ko 1.7 Po 3.9 P 11.9 TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 22.4 7 0.268 7.1 0.272 ...

Page 18

ST75185 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its ...

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