Texas Instruments GD75232DB, GD75232N, GD75232DWR, GD75232DW, GD75232DBR Datasheet

0 (0)

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

UART and Serial-Port Connector of IBM

 

 

(TOP VIEW)

 

PC/AT and Compatibles

VDD

 

1

20

 

VCC

 

 

D Meets or Exceeds the Requirements of

 

 

 

 

RA1

 

2

19

 

RY1

ANSI Standard TIA/EIA-232-F and ITU

 

 

RA2

 

3

18

 

RY2

 

 

Recommendation V.28

 

 

RA3

 

4

17

 

RY3

 

 

D Designed to Support Data Rates up to

 

 

DY1

 

5

16

 

DA1

 

 

120 kbit/s

DY2

 

6

15

 

DA2

 

 

D Pinout Compatible With SN75C185 and

RA4

 

7

14

 

RY4

 

 

SN75185

DY3

 

8

13

 

DA3

 

 

D ESD Protection to 2 kV on Bus Terminals

RA5

9

12

 

RY5

 

 

 

 

D Package Options Include Plastic

VSS

10

11

 

GND

 

 

 

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

1

Texas Instruments GD75232DB, GD75232N, GD75232DWR, GD75232DW, GD75232DBR Datasheet

GD75232

MULTIPLE RS-232 DRIVERS AND RECEIVERS

SLLS206C ± MAY 1995 ± REVISED JULY 1998

logic symbol²

 

logic diagram (positive logic)

2

19

2

19

RA1

RY1

RA1

RY1

 

 

3

18

3

18

RA2

RY2

4

17

RA2

RY2

RA3

RY3

 

 

5

16

4

17

DY1

DA1

RA3

RY3

6

15

 

 

DY2

DA2

5

16

7

14

DY1

DA1

RA4

RY4

 

 

8

13

6

15

DY3

DA3

DY2

DA2

9

12

RA5

RY5

7

14

 

 

² This symbol is in accordance with ANSI/IEEE Std 91-1984

RA4

RY4

8

13

and IEC Publication 617-12.

 

 

 

DY3

DA3

 

 

9

12

 

 

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

 

Drivers

 

10.4 kΩ

68.5 Ω

3.3 kΩ

VSS

To Other Drivers

Resistor values shown are nominal.

2

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

Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . ±15 V to 7 V

Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±30 V to 30 V

Driver output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. ±15 V to 15

V

Receiver low-level output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . 20 mA

Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . 115°C/W

DW package . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . 97°C/W

N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . 67°C/W

Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±65°C to 150°C

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

3

GD75232

MULTIPLE RS-232 DRIVERS AND RECEIVERS

SLLS206C ± MAY 1995 ± REVISED JULY 1998

recommended operating conditions

 

 

MIN

NOM

MAX

UNIT

 

 

 

 

 

 

Supply voltage, VDD

 

7.5

9

15

V

Supply voltage, VSS

 

± 7.5

± 9

± 15

V

Supply voltage, VCC

 

4.5

5

5.5

V

High-level input voltage, VIH (driver only)

1.9

 

 

V

Low-level input voltage, VIL (driver only)

 

 

0.8

V

High-level output current, IOH

Driver

 

 

± 6

mA

 

 

 

 

Receiver

 

 

± 0.5

 

 

 

 

 

 

 

 

 

 

Low-level output current, IOL

Driver

 

 

6

mA

 

 

 

 

Receiver

 

 

16

 

 

 

 

 

 

 

 

 

 

Operating free-air temperature, TA

0

 

70

°C

supply currents over recommended operating free-air temperature range

 

PARAMETER

 

TEST CONDITIONS

 

MIN MAX

UNIT

 

 

 

 

 

 

 

 

 

 

 

 

VDD = 9 V,

VSS = ± 9 V

15

 

 

 

All inputs at 1.9 V,

No load

VDD = 12 V,

VSS = ± 12 V

19

mA

IDD

Supply current from VDD

 

 

VDD = 15 V,

VSS = ± 15 V

25

 

 

 

VDD = 9 V,

VSS = ± 9 V

4.5

 

 

 

 

 

 

 

 

All inputs at 0.8 V,

No load

VDD = 12 V,

VSS = ± 12 V

5.5

mA

 

 

 

 

VDD = 15 V,

VSS = ± 15 V

9

 

 

 

 

 

VDD = 9 V,

VSS = ± 9 V

± 15

 

 

 

All inputs at 1.9 V,

No load

VDD = 12 V,

VSS = ± 12 V

± 19

mA

ISS

Supply current from VSS

 

 

VDD = 15 V,

VSS = ± 15 V

± 25

 

 

 

VDD = 9 V,

VSS = ± 9 V

± 3.2

 

 

 

 

 

 

 

 

All inputs at 0.8 V,

No load

VDD = 12 V,

VSS = ± 12 V

± 3.2

mA

 

 

 

 

VDD = 15 V,

VSS = ± 15 V

± 3.2

 

ICC

Supply current from VCC

VCC = 5 V,

All inputs at 5,

No load

30

mA

4

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

Loading...
+ 8 hidden pages