SN75164B
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVER
SLLS011A – OCTOBER 1985 – REVISED FEBRUARY 1993
8-Channel Bidirectional Transceiver
N PACKAGE
(TOP VIEW)
Power-Up/Power-Down Protection
(Glitch Free)
ATN+EOI (OR Function) Output to Simplify
Board Layout
SC
TE
1
V
CC
ATN + EOI
REN
22
21
20
19
18
17
16
15
14
13
12
2
3
REN
IFC
Designed to Implement Control Bus
Interface for Multiple Controllers
4
IFC
5
NDAC
NRFD
DAV
EOI
NDAC
NRFD
Low-Power Dissipation . . . 72 mW Max Per
Channel
6
GPIB
I/O Ports
Terminal
I/O Ports
7
DAV
EOI
ATN
SRQ
DC
Fast Propagation Times . . . 22 ns Max
High-impedance PNP Inputs
8
9
ATN
Receiver Hysteresis . . . 650 mV Typ
10
11
SRQ
GND
Bus-Terminating Resistors Provided on
Driver Outputs
NC – No internal connection
No Loading of Bus When Device Is
Powered Down (V
= 0)
CC
NOT RECOMMENDED FOR NEW DESIGN
description
CHANNEL IDENTIFICATION TABLE
The SN75164B eight-channel general-purpose
interface bus transceiver is monolithic,
high-speed, low-power Schottky device designed
to meet the requirements of IEEE Standard
488-1978. Each transceiver is designed to
provide the bus-management and data-transfer
NAME
IDENTITY
CLASS
a
DC
TE
SC
Direction Control
Talk Enable
System Control
Control
ATN
SRQ
REN
IFC
Attention
Service Request
Remote Enable
Interface Clear
End or Identify
Bus
Management
signals between operating units of
a
multiple-controller instrumentation system. When
combined with the SN75160B octal bus
transceiver, the SN75164B provides the complete
16-wire interface for the IEEE-488 bus.
EOI
ATN Logical or EOI
Logic
ATN + EOI
DAV
NDAC
NRFD
Data Valid
Not Data Accepted
Not Ready for Data
Data
Transfer
The SN75164B features 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. All outputs are disabled (at a high-impedance
state) during V
power-up and power-down transitions for glitch-free operation. The direction of data flow
CC
through these driver-receiver pairs is determined by the DC, TE, and SC enable signals. The SN75164B is
identical to the SN75162B with the addition of an OR gate to help simplify board layouts in several popular
applications. The ATN and EOI signals are ORed to pin 21, which is a standard totem-pole output.
Copyright 1993, 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.
1
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