SN55ALS161, SN75ALS161

OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS

SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999

1

POST OFFICE BOX 655303

Interface

Circuitry

SN55ALS161 . . . 59 mW Max Per Channel

SN75ALS161 . . . 46 mW Max Per Channel

SN55ALS161 . . . 25 ns Max

SN75ALS161 . . . 20 ns Max

SN55ALS161 . . . 550 mV Typ

SN75ALS161 . . . 650 mV Typ

Driver Outputs

(Glitch Free)

description

The

SN55ALS161

and

SN75ALS161

eight-channel general-purpose interface bus

transceivers

are

high-speed,

advanced

low-power Schottky-process devices designed to

provide the bus-management and data-transfer

signals

between

operating

units

of

a

single-controller instrumentation system. When

combined

with

the

SN55ALS160

and

SN75ALS160 octal bus transceivers, these

devices provide a complete 16-wire interface for

the IEEE 488 bus.

The SN55ALS161 and SN75ALS161 devices

feature eight driver-receiver pairs connected in a

front-to-back configuration to form input/output

(I/O) ports at both the bus and terminal sides. The

direction of data through these driver-receiver

pairs is determined by the direction-control (DC)

and talk-enable (TE) signals.

Copyright

© 1999, 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.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

TE

REN

IFC

NDAC

NRFD

DAV

EOI

ATN

SRQ

GND

REN

IFC

NDAC

NRFD

DAV

EOI

ATN

SRQ

DC

SN55ALS161 . . . J OR W PACKAGE

SN75ALS161 . . . DW OR N PACKAGE

(TOP VIEW)

GPIB

I/O Ports

Terminal

I/O Ports

NAME

CLASS

IDENTITY

DC

TE

ATN

SRQ

REN

IFC

EOI

DAV

NDAC

NRFD

CHANNEL-IDENTIFICATION TABLE

Direction Control

Talk Enable

Attention

Service Request

Remote Enable

Interface Clear

End or Identify

Data Valid

Not Data Accepted

Not Ready for Data

Control

Bus

Management

Data

Transfer

32

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

IFC

NDAC

NRFD

DAV

EOI

NDAC

NRFD

DAV

EOI

ATN

SN55ALS161 . . . FK PACKAGE

(TOP VIEW)

† The transceivers are suitable for IEEE Standard 488 applications to the extent of the operating conditions and characteristics specified in this

data sheet. Certain limits contained in the IEEE specification are not met or cannot be tested over the entire military temperature range.

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.