Texas Instruments SN75160BDW, SN75160BDWR, SN75160BN Datasheet

SN75160B

OCTAL GENERAL-PURPOSE

INTERFACE BUS TRANSCEIVER

SLLS004B – OCTOBER 1985 – REVISED MA Y 1995

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Meets IEEE Standard 488-1978 (GPIB)

D

8-Channel Bidirectional Transceiver

D

Power-Up/Power-Down Protection
(Glitch Free)

D

High-Speed, Low-Power Schottky Circuitry

D

Low Power Dissipation...72 mW Max Per
Channel

D

Fast Propagation Times . . . 22 ns Max

D

High-Impedance pnp Inputs

D

Receiver Hysteresis...650 mV Typ

D

Open-Collector Driver Output Option

D

No Loading of Bus When Device Is
Powered Down (V

CC

= 0)

description

The SN75160B 8-channel general-purpose interface bus (GPIB) transceiver is a monolithic, high-speed,
low-power Schottky device designed for two-way data communications over single-ended transmission lines.
It is designed to meet the requirements of IEEE Standard 488-1978. The transceiver features driver outputs that
can be operated in either the passive-pullup or 3-state mode. If talk enable (TE) is high, these ports have the
characteristics of passive-pullup outputs when pullup enable (PE) is low and of 3-state outputs when PE is high.
T aking TE low places these ports in the high-impedance state. The driver outputs are designed to handle loads
up to 48 mA of sink current.

Output glitches during power up and power down are eliminated by an internal circuit that disables both the bus
and receiver outputs. The outputs do not load the bus when V

CC

= 0. When combined with the SN75161B or
SN75162B management bus transceivers, the pair provides the complete 16-wire interface for the IEEE-488
bus.

The SN75160B is characterized for operation from 0°C to 70°C.

Function Tables

EACH DRIVER EACH RECEIVER

INPUTS OUTPUT INPUTS OUTPUT

D TE PE B B TE PE D

H H H H L L X L
L HX L HLX H
HXL Z

†

XHX Z

XLX Z

†

H = high level, L = low level, X = irrelevant, Z = high impedance
†

This is the high-impedance state of a normal 3-state output modified by the internal resistors
to VCC and GND.

Copyright  1995, Texas Instruments Incorporated

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.

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.

TE
B1
B2
B3
B4
B5
B6
B7
B8

GND

VCC
D1
D2
D3
D4
D5
D6
D7
D8
PE

DW OR N PACKAGE

(TOP VIEW)

1
2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

GPIB

I/O Ports

Terminal
I/O Ports

SN75160B
OCTAL GENERAL-PURPOSE
INTERFACE BUS TRANSCEIVER

SLLS004B – OCTOBER 1985 – REVISED MA Y 1995

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic symbol

†

D2
D3

D4
D5

D6
D7

D8

11

1

19

18
17

16
15

14
13

12

3(1 /2 )

1

4

EN4[RCV]

EN3[XMT]

M2[0C]

M1[3S]PE

TE

D1

B1

2

B2

3

B3

4

B4

5

B5

6

B6

7

B7

8

B8

9

Designates 3-state outputs
Designates passive-pullup outputs

†

This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.

logic diagram (positive logic)

Terminal
I/O Ports

GPIB
I/O Port

s

11

PE

1

TE

19

D1

18

D2

17

D3

16

D4

15

D5

14

D6

13

D7

12

D8

B1

2

B2

3

B3

4

B4

5

B5

6

B6

7

B7

8

B8

9

SN75160B

OCTAL GENERAL-PURPOSE

INTERFACE BUS TRANSCEIVER

SLLS004B – OCTOBER 1985 – REVISED MA Y 1995

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

schematics of inputs and outputs

NOM

9 kΩ

GND

Input

V

CC

EQUIVALENT OF ALL CONTROL INPUTS EQUIVALENT OF ALL INPUT/OUTPUT PORTS

NOM

4 kΩ

R

(eq)

1.7 kΩ

NOM

10 kΩ
NOM

Input/Output Port

NOM

4 kΩ

Driver output R

(eq)

= 30 Ω NOM

Receiver output R

(eq)

= 110 Ω NOM

Circuit inside dashed lines is on the driver outputs only.
R

(eq)

= equivalent resistor

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Supply voltage, V

CC

(see Note 1) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage, V

I

5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Low-level driver output current, I

OL

100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

A

0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” 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 “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltage values are with respect to network ground terminal.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

DW 1125 mW 9.0 mW/°C 720 mW

N 1150 mW 9.2 mW/°C 736 mW

SN75160B
OCTAL GENERAL-PURPOSE
INTERFACE BUS TRANSCEIVER

SLLS004B – OCTOBER 1985 – REVISED MA Y 1995

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

recommended operating conditions

MIN NOM MAX UNIT

Supply voltage, V

CC

4.75 5 5.25 V

High-level input voltage, V

IH

2 V

Low-level input voltage, V

IL

0.8 V

p

Bus ports with pullups active –5.2 mA

High-level output current, I

OH

Terminal ports –800 µA

p

Bus ports 48

Low-level output current, I

OL

Terminal ports 16

mA

Operating free-air temperature, T

A

0 70 °C

electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

V

IK

Input clamp voltage II = –18 mA –0.8 –1.5 V

V

hys

Hysteresis voltage
(V

IT+

– V

IT–

)

Bus See Figure 8 0.4 0.65 V

p

Terminal IOH = –800 µA, TE at 0.8 V 2.7 3.5

VOHHigh-level output voltage

Bus IOH = –5.2 mA, PE and TE at 2 V 2.5 3.3

V

p

Terminal IOL = 16 mA, TE at 0.8 V 0.3 0.5

VOLLow-level output voltage

Bus IOL = 48 mA, TE at 2 V 0.35 0.5

V

Input current at maximum

I

I

input voltage

Terminal

V

I

=

5.5 V

0.2

100µA

I

IH

High-level input current T erminal VI = 2.7 V 0.1 20 µA

I

IL

Low-level input current Terminal VI = 0.5 V –10 –100 µA

p

I

I(bus)

= 0 2.5 3.0 3.7

V

I/O(bus)

Voltage at bus port

Driver disabled

I

I(bus)

= –12 mA –1.5

V

V

I(bus)

= –1.5 V to 0.4 V –1.3

V

I(bus)

= 0.4 V to 2.5 V 0 –3.2

2.5

I

I/O(bus)

Current into bus port

Power on

Driver disabled

V

I(bus)

= 2.5 V to 3.7

V

–3.2

mA

()

V

I(bus)

= 3.7 V to 5 V 0 2.5

V

I(bus)

= 5 V to 5.5 V 0.7 2.5

Power off VCC = 0, V

I(bus)

= 0 to 2.5 V –40

p

Terminal –15 –35 –75

IOSShort-circuit output current

Bus –25 –50 –125

mA

pp

Receivers low and enabled 70 90

ICCSupply current

No load

Drivers low and enabled 85 110

mA

p

p

VCC = 0 to 5 V, V

I/O

= 0 to 2 V,

p

C

I/O(bus)

Bus-port capacitance

CC

f = 1 MHz

I/O

16

pF

†

All typical values are at VCC = 5 V, TA = 25°C.