Datasheet

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