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BUS TRANSCEIVERS. SN75162B Datasheet

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BUS TRANSCEIVERS. SN75162B Datasheet






SN75162B TRANSCEIVERS. Datasheet pdf. Equivalent




SN75162B TRANSCEIVERS. Datasheet pdf. Equivalent





Part

SN75162B

Description

OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS



Feature


SN75161B, SN75162B OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS D Meets IE EE Standard 488-1978 (GPIB) D 8-Channel Bidirectional Transceivers D Power-Up/ Power-Down Protection (Glitch Free) D D esigned to Implement Control Bus Interf ace D SN75161B Designed for Single Cont roller D SN75162B Designed for Multiple Controllers D High-Speed, Low-Power Sc hottky Circuitry D.
Manufacture

Texas Instruments

Datasheet
Download SN75162B Datasheet


Texas Instruments SN75162B

SN75162B; Low Power Dissipation . . . 72 mW Max P er Channel D Fast Propagation Times . . . 22 ns Max D High-Impedance pnp Input s D Receiver Hysteresis . . . 650 mV Ty p D Bus-Terminating Resistors Provided on Driver Outputs D No Loading of Bus W hen Device Is Powered Down (VCC = 0) de scription The SN75161B and SN75162B eig ht-channel, general-purpose interface b us transceivers ar.


Texas Instruments SN75162B

e monolithic, high-speed, low-power Scho ttky devices designed to meet the requi rements of IEEE Standard 488-1978. Each transceiver is designed to provide the bus-management and data-transfer signa ls between operating units of a single- or multiple-controller instrumentation system. When combined with the SN75160 B octal bus transceiver, the SN75161B o r SN75162B provide.


Texas Instruments SN75162B

s the complete 16-wire interface for the IEEE-488 bus. The SN75161B and SN75162 B feature eight driver-receiver pairs c onnected in a front-to-back configurati on to form input/output (I/O) ports at both the bus and terminal sides. A powe rup/-down disable circuit is included o n all bus and receiver outputs. This pr ovides glitch-free operation during VCC power up and powe.

Part

SN75162B

Description

OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS



Feature


SN75161B, SN75162B OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS D Meets IE EE Standard 488-1978 (GPIB) D 8-Channel Bidirectional Transceivers D Power-Up/ Power-Down Protection (Glitch Free) D D esigned to Implement Control Bus Interf ace D SN75161B Designed for Single Cont roller D SN75162B Designed for Multiple Controllers D High-Speed, Low-Power Sc hottky Circuitry D.
Manufacture

Texas Instruments

Datasheet
Download SN75162B Datasheet




 SN75162B
SN75161B, SN75162B
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
D Meets IEEE Standard 488-1978 (GPIB)
D 8-Channel Bidirectional Transceivers
D Power-Up/Power-Down Protection
(Glitch Free)
D Designed to Implement Control Bus
Interface
D SN75161B Designed for Single Controller
D SN75162B Designed for Multiple
Controllers
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 Bus-Terminating Resistors Provided on
Driver Outputs
D No Loading of Bus When Device Is
Powered Down (VCC = 0)
description
The SN75161B and SN75162B eight-channel,
general-purpose interface bus transceivers are
monolithic, high-speed, low-power Schottky
devices designed to meet the requirements of
IEEE Standard 488-1978. Each transceiver is
designed to provide the bus-management and
data-transfer signals between operating units of
a single- or multiple-controller instrumentation
system. When combined with the SN75160B octal
bus transceiver, the SN75161B or SN75162B
provides the complete 16-wire interface for the
IEEE-488 bus.
The SN75161B and SN75162B 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. A power-
up/-down disable circuit is included on all bus and
receiver outputs. This provides glitch-free opera-
tion during VCC power up and power down.
SLLS005B – OCTOBER 1980 – REVISED MAY 1995
SN75161B . . . DW OR N PACKAGE
(TOP VIEW)
GPIB
I/O Ports
TE 1
REN 2
IFC 3
NDAC 4
NRFD 5
DAV 6
EOI 7
ATN 8
SRQ 9
GND 10
20 VCC
19 REN
18 IFC
17 NDAC
16 NRFD
15 DAV
14 EOI
13 ATN
12 SRQ
11 DC
Terminal
I/O Ports
SN75162B . . . DW PACKAGE
(TOP VIEW)
GPIB
I/O Ports
SC 1
TE 2
REN 3
IFC 4
NDAC 5
NRFD 6
DAV 7
EOI 8
ATN 9
SRQ 10
NC 11
GND 12
24 VCC
23 NC
22 REN
21 IFC
20 NDAC
19 NRFD
18 DAV
17 EOI
16 ATN
15 SRQ
14 NC
13 DC
Terminal
I/O Ports
GPIB
I/O Ports
SN75162B . . . N PACKAGE
(TOP VIEW)
SC 1
TE 2
REN 3
IFC 4
NDAC 5
NRFD 6
DAV 7
EOI 8
ATN 9
SRQ 10
GND 11
22 VCC
21 NC
20 REN
19 IFC
18 NDAC
17 NRFD
16 DAV
15 EOI
14 ATN
13 SRQ
12 DC
Terminal
I/O Ports
NC – No internal connection
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1995, Texas Instruments Incorporated
1




 SN75162B
SN75161B, SN75162B
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS005B – OCTOBER 1980 – REVISED MAY 1995
description (continued)
The direction of data through these driver-receiver pairs is determined by the DC, TE, and SC (on SN75162B)
enable signals. The SC input on the SN75162B allows the REN and IFC transceivers to be controlled
independently.
The driver outputs (GPIB I/O ports) feature active bus-terminating resistor circuits designed to provide a high
impedance to the bus when supply voltage VCC is 0. The drivers are designed to handle loads up to 48 mA of
sink current. Each receiver features pnp transistor inputs for high input impedance and hysteresis of 400 mV
for increased noise immunity. All receivers have 3-state outputs to present a high impedance to the terminal
when disabled.
The SN75161B and SN75162B are characterized for operation from 0°C to 70°C.
Function Tables
SN75161B RECEIVE/TRANSMIT
CONTROLS
DC
TE
ATN†
BUS-MANAGEMENT CHANNELS
ATN†
SRQ
REN
IFC
EOI
DATA-TRANSFER CHANNELS
DAV
NDAC
NRFD
(Controlled by DC)
(Controlled by TE)
H
H
H
T
R
T
R
R
T
R
R
H
H
L
R
L
L
H
R
T
R
T
T
R
T
T
L
L
L
T
H
L
X
R
T
R
R
R
R
T
T
L
H
X
T
R
T
T
T
T
R
R
H = high level, L = low level, R = receive, T = transmit, X = irrelevant
Direction of data transmission is from the terminal side to the bus side, and the direction of data receiving is from the bus side to the terminal side.
Data transfer is noninverting in both directions.
ATN is a normal transceiver channel that functions additionally as an internal direction control or talk enable for EOI whenever the DC and TE
inputs are in the same state. When DC and TE are in opposite states, the ATN channel functions as an independent transceiver only.
SN75162B RECEIVE/TRANSMIT
CONTROLS
BUS-MANAGEMENT CHANNELS
DATA-TRANSFER CHANNELS
SC
DC
TE
ATN†
ATN†
SRQ
REN
IFC
EOI
DAV
NDAC NRFD
(Controlled by DC) (Controlled by SC)
(Controlled by TE)
H
H
H
R
T
H
H
L
T
T
R
R
R
L
L
H
T
R
L
L
L
R
R
T
T
T
H
L
X
R
T
R
R
T
T
L
H
X
T
R
T
T
R
R
H
T
T
L
R
R
H = high level, L = low level, R = receive, T = transmit, X = irrelevant
Direction of data transmission is from the terminal side to the bus side, and the direction of data receiving is from the bus side to the terminal side.
Data transfer is noninverting in both directions.
ATN is a normal transceiver channel that functions additionally as an internal direction control or talk enable for EOI whenever the DC and TE
inputs are in the same state. When DC and TE are in opposite states, the ATN channel functions as an independent transceiver only.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265




 SN75162B
SN75161B, SN75162B
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS005B – OCTOBER 1980 – REVISED MAY 1995
NAME
DC
TE
SC
ATN
SRQ
REN
IFC
EOI
DAV
NDAC
NRFD
CHANNEL-IDENTIFICATION TABLE
IDENTITY
CLASS
Direction Control
Talk Enable
Control
System Control (SN75162B only)
Attention
Service Request
Remote Enable
Bus
Interface Clear
Management
End of Identity
Data Valid
Not Data Accepted
Data
Not Ready for Data
Transfer
SN75161B logic symbol
SN75161B logic diagram (positive logic)
DC 11
TE 1
EN1/G4
EN2/G5
ATN 13
14
EOI
12
SRQ
1
5
4
1
3
EN3
1
1
3
1
1
8
ATN
7
EOI
9 SRQ
19
REN
18
IFC
1
1
1
1
1
1
2
REN
3
IFC
15
DAV
1
1
2
6
DAV
17
NDAC
16
NRFD
2
1
2
2
1
2
4
NDAC
5
NRFD
2
1
{ This symbol is in accordance with IEEE Std 91-1984 and
IEC Publication 617-12.
Designates 3-state outputs
Designates passive-pullup outputs
DC 11
TE 1
ATN 13
EOI 14
SRQ 12
REN 19
IFC 18
DAV 15
NDAC 17
8 ATN
7 EOI
9 SRQ
2 REN
3 IFC
6 DAV
4 NDAC
NRFD 16
5 NRFD
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3



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