SN75164B Datasheet, PDF (1/12 Pages) Texas Instruments – OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVER

SN75164B
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVER
D 8-Channel Bidirectional Transceiver
D Power-Up/Power-Down Protection
(Glitch Free)
D ATN+EOI (OR Function) Output to Simplify
Board Layout
D Designed to Implement Control Bus
Interface for Multiple Controllers
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 (V_CC = 0)
SLLS011A – OCTOBER 1985 – REVISED FEBRUARY 1993
N PACKAGE
(TOP VIEW)
SC 1
TE 2
REN 3
IFC 4
NDAC 5
GPIB ^{NRFD 6}
I/O Ports DAV ⁷
EOI ⁸
ATN ⁹
SRQ ¹⁰
GND ¹¹
22 V_CC
21 ATN + EOI
20 REN
19 IFC
18 NDAC
17 _{NRFD Terminal}
16 _DAV I/O Ports
15 _EOI
14 _ATN
13 _SRQ
12 _DC
NC – No internal connection
NOT RECOMMENDED FOR NEW DESIGN
description
CHANNEL IDENTIFICATION TABLE
The SN75164B eight-channel general-purpose
NAME
IDENTITY
CLASS
interface bus transceiver is a monolithic,
high-speed, low-power Schottky device designed
to meet the requirements of IEEE Standard
DC
Direction Control
TE
Talk Enable
Control
SC
System Control
488-1978. Each transceiver is designed to
provide the bus-management and data-transfer
signals between operating units of a
multiple-controller instrumentation system. When
ATN
SRQ
REN
IFC
EOI
Attention
Service Request
Remote Enable
Interface Clear
End or Identify
Bus
Management
combined with the SN75160B octal bus
transceiver, the SN75164B provides the complete
ATN + EOI ATN Logical or EOI Logic
16-wire interface for the IEEE-488 bus.
The SN75164B features eight driver-receiver
DAV
NDAC
NRFD
Data Valid
Not Data Accepted
Not Ready for Data
Data
Transfer
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_CC power-up and power-down transitions for glitch-free operation. The direction of data flow
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.
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.
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Copyright © 1993, Texas Instruments Incorporated
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