GD75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS206C ± MAY 1995 ± REVISED JULY 1998
D Single Chip With Easy Interface Between |
DB, DW, OR N PACKAGE |
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UART and Serial-Port Connector of IBM |
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(TOP VIEW) |
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PC/AT and Compatibles |
VDD |
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1 |
20 |
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VCC |
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D Meets or Exceeds the Requirements of |
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RA1 |
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2 |
19 |
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RY1 |
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ANSI Standard TIA/EIA-232-F and ITU |
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RA2 |
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3 |
18 |
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RY2 |
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Recommendation V.28 |
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RA3 |
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4 |
17 |
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RY3 |
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D Designed to Support Data Rates up to |
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DY1 |
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5 |
16 |
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DA1 |
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120 kbit/s |
DY2 |
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6 |
15 |
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DA2 |
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D Pinout Compatible With SN75C185 and |
RA4 |
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7 |
14 |
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RY4 |
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SN75185 |
DY3 |
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8 |
13 |
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DA3 |
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D ESD Protection to 2 kV on Bus Terminals |
RA5 |
9 |
12 |
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RY5 |
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D Package Options Include Plastic |
VSS |
10 |
11 |
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GND |
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Small-Outline (DW), Shrink Small-Outline
(DB) Packages, and DIPs (N)
description
The GD75232 combines three drivers and five receivers from TI trade-standard 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 an IBM PC/AT and compatibles. The bipolar circuits and processing of the GD75232 provide a rugged, low-cost solution for this function at the expense of quiescent power and external passive components relative to the SN75C185.
The GD75232 complies with the requirements of the TIA/EIA-232-F and ITU (formerly CCITT) V.28 standards. These standards are for data interchange between a host computer and a peripheral at signaling rates up to 20 kbit/s. The switching speeds of the GD75232 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 expected unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling rates up to 120 kbit/s, use of ANSI TIA/EIA-423-B (ITU V.10) and TIA/EIA-422-B (ITU V.11) standards is recommended.
The GD75232 is characterized for operation over the temperature range of 0°C to 70°C.
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.
TI is a trademark of Texas Instruments Incorporated.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 1998, Texas Instruments Incorporated
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
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GD75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS206C ± MAY 1995 ± REVISED JULY 1998
logic symbol² |
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logic diagram (positive logic) |
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2 |
19 |
2 |
19 |
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RA1 |
RY1 |
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RA1 |
RY1 |
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3 |
18 |
3 |
18 |
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RA2 |
RY2 |
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4 |
17 |
RA2 |
RY2 |
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RA3 |
RY3 |
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5 |
16 |
4 |
17 |
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DY1 |
DA1 |
RA3 |
RY3 |
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6 |
15 |
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DY2 |
DA2 |
5 |
16 |
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7 |
14 |
DY1 |
DA1 |
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RA4 |
RY4 |
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8 |
13 |
6 |
15 |
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DY3 |
DA3 |
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DY2 |
DA2 |
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9 |
12 |
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RA5 |
RY5 |
7 |
14 |
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² This symbol is in accordance with ANSI/IEEE Std 91-1984 |
RA4 |
RY4 |
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8 |
13 |
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and IEC Publication 617-12. |
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DY3 |
DA3 |
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9 |
12 |
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RA5 |
RY5 |
schematic (each driver)
To Other Drivers
VDD
11.6 kΩ |
9.4 kΩ |
Input DAx
75.8 Ω
320 Ω
DYx Output
4.2 kΩ
GND
To Other |
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Drivers |
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10.4 kΩ |
68.5 Ω |
3.3 kΩ |
VSS
To Other Drivers
Resistor values shown are nominal.
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POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
GD75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS206C ± MAY 1995 ± REVISED JULY 1998
schematic (each receiver)
To Other Receivers
VCC
9 kΩ |
5 kΩ |
1.66 kΩ |
RYx Output
2 kΩ
3.8 kΩ
Input RAx
10 kΩ
GND
To Other Receivers
Resistor values shown are nominal.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)²
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . 10 |
V |
Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . 15 |
V |
Supply voltage, VSS (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . ±15 V |
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Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . ±15 V to 7 V |
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Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±30 V to 30 V |
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Driver output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. ±15 V to 15 |
V |
Receiver low-level output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . 20 mA |
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Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . 115°C/W |
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DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . 97°C/W |
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N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . 67°C/W |
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Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
±65°C to 150°C |
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Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . 260°C |
²Stresses beyond those listed under ªabsolute maximum ratingsº may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under ªrecommended operating conditionsº is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltages are with respect to the network ground terminal.
2.The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |
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GD75232
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS206C ± MAY 1995 ± REVISED JULY 1998
recommended operating conditions
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MIN |
NOM |
MAX |
UNIT |
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Supply voltage, VDD |
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7.5 |
9 |
15 |
V |
Supply voltage, VSS |
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± 7.5 |
± 9 |
± 15 |
V |
Supply voltage, VCC |
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4.5 |
5 |
5.5 |
V |
High-level input voltage, VIH (driver only) |
1.9 |
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V |
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Low-level input voltage, VIL (driver only) |
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0.8 |
V |
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High-level output current, IOH |
Driver |
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± 6 |
mA |
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Receiver |
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± 0.5 |
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Low-level output current, IOL |
Driver |
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6 |
mA |
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Receiver |
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16 |
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Operating free-air temperature, TA |
0 |
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70 |
°C |
supply currents over recommended operating free-air temperature range
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PARAMETER |
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TEST CONDITIONS |
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MIN MAX |
UNIT |
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VDD = 9 V, |
VSS = ± 9 V |
15 |
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All inputs at 1.9 V, |
No load |
VDD = 12 V, |
VSS = ± 12 V |
19 |
mA |
IDD |
Supply current from VDD |
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VDD = 15 V, |
VSS = ± 15 V |
25 |
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VDD = 9 V, |
VSS = ± 9 V |
4.5 |
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All inputs at 0.8 V, |
No load |
VDD = 12 V, |
VSS = ± 12 V |
5.5 |
mA |
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VDD = 15 V, |
VSS = ± 15 V |
9 |
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VDD = 9 V, |
VSS = ± 9 V |
± 15 |
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All inputs at 1.9 V, |
No load |
VDD = 12 V, |
VSS = ± 12 V |
± 19 |
mA |
ISS |
Supply current from VSS |
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VDD = 15 V, |
VSS = ± 15 V |
± 25 |
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VDD = 9 V, |
VSS = ± 9 V |
± 3.2 |
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All inputs at 0.8 V, |
No load |
VDD = 12 V, |
VSS = ± 12 V |
± 3.2 |
mA |
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VDD = 15 V, |
VSS = ± 15 V |
± 3.2 |
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ICC |
Supply current from VCC |
VCC = 5 V, |
All inputs at 5, |
No load |
30 |
mA |
4 |
POST OFFICE BOX 655303 •DALLAS, TEXAS 75265 |