SN75185 AND RECEIVERS Datasheet

SN75185 Datasheet, PDF, Equivalent


Part Number

SN75185

Description

MULTIPLE RS-232 DRIVERS AND RECEIVERS

Manufacture

etcTI

Total Page 26 Pages
Datasheet
Download SN75185 Datasheet


SN75185
www.ti.com
FEATURES
Single Chip With Easy Interface Between
UART and Serial-Port Connector of
IBM™ PC/AT™ and Compatibles
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Supports Data Rates up to 120 kbit/s
ESD Protection Meets or Exceeds 10 kV on
RS-232 Pins and 3.5 kV on All Other Pins
(Human-Body Model)
Pin-to-Pin Compatible With the SN75C185
DESCRIPTION/ORDERING INFORMATION
The SN75185 combines three drivers and five
receivers from the TI SN75188 and SN75189 bipolar
quadruple drivers and receivers, respectively. The
pinout matches the flow-through design of the
SN75C185 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™ and compatibles. The bipolar circuits and
processing of the SN75185 provide a rugged low-cost
solution for this function at the expense of quiescent
power and external passive components relative to
the SN75C185.
The SN75185 complies with the requirements of the
TIA/EIA-232-F and ITU v.28 standards. These
standards are for data interchange between a host
computer and peripheral at signaling rates up to 20
kbit/s. The switching speeds of the SN75185 are fast
enough to support rates up to 120 kbit/s with lower
capacitive loads (shorter cables). Interoperability at
the higher signaling rates cannot be assured unless
the designer has design control of the cable and the
interface circuits at both ends. For interoperability at
signaling rates to 120 kbit/s, use of TIA/EIA-423-B
(ITU v.10) and TIA/EIA-422-B (ITU v.11) standards is
recommended.
The SN75185 is characterized for operation over the
temperature range of 0°C to 70°C.
SN75185
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS181D – DECEMBER 1994 – REVISED JANUARY 2006
N PACKAGE
(TOP VIEW)
VDD
RA1
RA2
RA3
DY1
DY2
RA4
DY3
RA5
VSS
1
2
3
4
5
6
7
8
9
10
20 VCC
19 RY1
18 RY2
17 RY3
16 DA1
15 DA2
14 RY4
13 DA3
12 RY5
11 GND
DB, DW, OR PW PACKAGE
(TOP VIEW)
VDD
RA1
RA2
RA3
DY1
DY2
RA4
DY3
RA5
VSS
1
2
3
4
5
6
7
8
9
10
20 VCC
19 RY1
18 RY2
17 RY3
16 DA1
15 DA2
14 RY4
13 DA3
12 RY5
11 GND
XXXXX
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
IBM, PC/AT are trademarks of IBM Corporation.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1994–2006, Texas Instruments Incorporated

SN75185
SN75185
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS181D – DECEMBER 1994 – REVISED JANUARY 2006
ORDERING INFORMATION
TA
0°C to 70°C
PDIP – N
SOIC – DW
SSOP – DB
TSSOP – PW
PACKAGE (1)
Tube of 20
Tube of 25
Reel of 2000
Tube of 70
Reel of 2000
Tube of 70
Reel of 2000
ORDERABLE PART NUMBER
SN75185N
SN75185DW
SN75185DWR
SN75185DB
SN75185DBR
SN75185PW
SN75185PWR
www.ti.com
TOP-SIDE MARKING
SN75185N
SN75185
A185
A185
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
LOGIC DIAGRAM (POSITIVE LOGIC)
2
RA1
19
RY1
3
RA2
18
RY2
4
RA3
17
RY3
5
DY1
6
DY2
7
RA4
8
DY3
16
DA1
15
DA2
14
RY4
13
DA3
9
RA5
12
RY5
2


Features www.ti.com FEATURES • Single Chip With Easy Interface Between UART and Serial -Port Connector of IBM™ PC/AT™ and Compatibles • Meets or Exceeds the Re quirements of TIA/EIA-232-F and ITU v.2 8 Standards • Supports Data Rates up to 120 kbit/s • ESD Protection Meets or Exceeds 10 kV on RS-232 Pins and 3.5 kV on All Other Pins (Human-Body Model ) • Pin-to-Pin Compatible With the SN 75C185 DESCRIPTION/ORDERING INFORMATION The SN75185 combines three drivers and five receivers from the TI SN75188 and SN75189 bipolar quadruple drivers and receivers, respectively. The pinout mat ches the flow-through design of the SN7 5C185 to decrease the part count, reduc e the board space required, and allow e asy interconnection of the UART and ser ial-port connector of IBM™ PC/AT™ a nd compatibles. The bipolar circuits an d processing of the SN75185 provide a r ugged low-cost solution for this functi on at the expense of quiescent power an d external passive components relative to the SN75C185. The SN75185 complies with.
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