HD75161A Datasheet, PDF (1/12 Pages) Hitachi Semiconductor – Octal General Purpose Interface Bus Transceivers

HD75161A
Octal General Purpose Interface Bus Transceivers
REJ03D0309–0200Z
(Previous ADE-205-591 (Z))
Rev.2.00
Jul.16.2004
Description
The HD75161A is an 8 channel general purpose interface bus transceiver designed to meet the requirements of IEEE
standard 488-1978. The transceiver is to provide the bus management and data transfer signals during operating in a
controller instrumentation system. When combined with the HD75160A octal bus transceiver, the HD75161A provides
the complete 16 wire interface for the IEEE 488 bus. The HD75161A features eight driver receiver pairs connected in a
front to back configureation to form input/output ports at both the bus and terminal sides. The direction of data through
these driver receiver pairs is determined by the DC and TE enable signals. The device exhibits a high impedance to the
bus when V_CC = 0 V since the bus terminating resistors are built in. If featurs driver outputs which can handle loads up
to 48 mA of sink current. Each receiver features p n p transistor inputs for high input impedance and guaranteed
hysteresis of 400 mV for increased noise immunity.
Features
• Ordering Information
Part Name
HD75161AP
Package Type
DILP-20 pin
Package Code
Package
Abbreviation
DP-20N, -20NEV P
Taping Abbreviation
(Quantity)
—
Pin Arrangement
TE 1
REN 2
IFC 3
NDAC 4
NRFD 5
DAV 6
EOI 7
ATN 8
SRQ 9
GND 10
20 V_CC
19 REN
18 IFC
17 NDAC
16 NRFD
15 DAV
14 EOI
13 ATN
12 SRQ
11 _DC
(Top view)
Rev.2.00, Jul.16.2004, page 1 of 11