SNJ55ALS161FK [TI]
Octal General-Purpose Interface Bus Transceiver 20-LCCC -55 to 125;
| 型号： | SNJ55ALS161FK |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Octal General-Purpose Interface Bus Transceiver 20-LCCC -55 to 125 驱动 接口集成电路 驱动器 |
| 文件： | 总16页 (文件大小：218K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
†
SUITABLE FOR IEEE STANDARD 488-1978 (GPIB)
8-Channel Bidirectional Transceivers
SN55ALS161 . . . J OR W PACKAGE
SN75ALS161 . . . DW OR N PACKAGE
Designed to Implement Control Bus
Interface
(TOP VIEW)
Designed for Single Controller
TE
REN
IFC
V
CC
REN
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
High-Speed Advanced Low-Power Schottky
Circuitry
IFC
Low Power Dissipation:
SN55ALS161 . . . 59 mW Max Per Channel
SN75ALS161 . . . 46 mW Max Per Channel
NDAC
NRFD
DAV
NDAC
NRFD
GPIB
I/O Ports
Terminal
I/O Ports
15 DAV
14
13
12
11
EOI
EOI
ATN
SRQ
DC
Fast Propagation Times:
SN55ALS161 . . . 25 ns Max
SN75ALS161 . . . 20 ns Max
ATN
SRQ
GND
High-Impedance pnp Inputs
Receiver Hysteresis:
SN55ALS161 . . . 550 mV Typ
SN75ALS161 . . . 650 mV Typ
SN55ALS161 . . . FK PACKAGE
(TOP VIEW)
Bus-Terminating Resistors Provided on
Driver Outputs
No Loading of Bus When Device Is
3
2
1
20 19
18
IFC
NDAC
4
5
6
7
8
Powered Down (V
= 0)
CC
NDAC
NRFD
DAV
NRFD
DAV
EOI
17
16
15
14
Power-Up/Power-Down Protection
(Glitch Free)
EOI
ATN
description
9 10 11 12 13
The
eight-channel general-purpose interface bus
transceivers are high-speed, advanced
low-power Schottky-process devices designed to
provide the bus-management and data-transfer
SN55ALS161
and
SN75ALS161
CHANNEL-IDENTIFICATION TABLE
NAME
IDENTITY
CLASS
DC
TE
Direction Control
Talk Enable
signals between operating units of
single-controller instrumentation system. When
combined with the SN55ALS160 and
a
Control
ATN
SRQ
REN
IFC
Attention
Service Request
Remote Enable
Interface Clear
End or Identify
Data Valid
SN75ALS160 octal bus transceivers, these
devices provide a complete 16-wire interface for
the IEEE 488 bus.
Bus
Management
EOI
DAV
NDAC
NRFD
The SN55ALS161 and SN75ALS161 devices
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. The
direction of data through these driver-receiver
pairs is determined by the direction-control (DC)
and talk-enable (TE) signals.
Data
Transfer
Not Data Accepted
Not Ready for Data
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.
†
The transceivers are suitable for IEEE Standard 488 applications to the extent of the operating conditions and characteristics specified in this
data sheet. Certain limits contained in the IEEE specification are not met or cannot be tested over the entire military temperature range.
Copyright 1999, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
description (continued)
The driver outputs general-purpose interface bus (GPIB I/O ports) feature active bus-terminating resistor
circuits designed to provide a high impedance to the bus when V
= 0. The drivers are designed to handle
CC
sink-current loads up to 48 mA. Each receiver features pnp transistor inputs for high input impedance and
hysteresis of 400 mV on the commercial part, 250 mV on the military part, minimum, for increased noise
immunity. All receivers have 3-state outputs to present a high impedance to the terminal when disabled.
The SN55ALS161 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN75ALS161 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
RECEIVE/TRANSMIT
CONTROLS
BUS-MANAGEMENT CHANNELS
DATA-TRANSFER CHANNELS
DAV NDAC NRFD
(CONTROLLED BY TE)
†
†
ATN
DC
TE
ATN
SRQ
REN
IFC
EOI
(CONTROLLED BY DC)
H
H
L
H
H
L
H
L
T
R
R
T
R
T
T
R
T
R
T
T
R
T
R
T
H
L
R
R
L
L
H
L
L
X
X
R
T
T
R
T
R
T
R
T
R
T
T
T
H
R
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
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
†
logic diagram (positive logic)
logic symbol
11
DC
1
EN1/G4
EN2/G5
11
DC
TE
≥ 1
5
1
EN3
TE
4
13
ATN
8
ATN
1
13
14
8
7
ATN
EOI
ATN
EOI
1
3
1
1
1
2
2
2
1
1
1
1
1
1
1
1
14
7
9
2
3
6
4
5
EOI
3
1
1
EOI
12
SRQ
SRQ
REN
IFC
19
REN
12
19
9
2
18
SRQ
REN
SRQ
REN
IFC
1
2
15
DAV
DAV
NDAC
NRFD
17
2
2
NDAC
16
NRFD
18
15
3
6
IFC
IFC
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
DAV
DAV
17
16
4
5
NDAC
NRFD
NDAC
NRFD
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
schematics of inputs and outputs
EQUIVALENT OF ALL CONTROL INPUTS
TYPICAL OF SRQ, NDAC, AND NRFD GPIB I/O PORT
V
CC
9 kΩ
NOM
10 kΩ
NOM
1.7 kΩ
NOM
Input
GND
4 kΩ
NOM
Input/Output Port
Circuit inside dashed lines is on the driver outputs only.
TYPICAL OF ALL I/O PORTS EXCEPT SRQ, NDAC, NRFD GPIB I/O PORTS
10 kΩ
NOM
1.7 kΩ
NOM
R
(eq)
4 kΩ
NOM
4 kΩ
NOM
Input/Output Port
Driver output R
= 30 Ω NOM
= 110 Ω NOM
= equivalent resistor
(eq)
Receiver output R
(eq)
R
(eq)
Circuit inside dashed lines is on the driver outputs only.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
I
Low-level driver output current, I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA
OL
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Package thermal impedance, θ (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
JA
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
Case temperature for 60 seconds: FK package, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
C
Lead temperature 1,6 mm (1/16 inch) from the case for 60 seconds: J or W package . . . . . . . . . . . . . 300°C
Lead temperature 1,6 mm (1/16 inch) from the case for 10 seconds: DW or N package . . . . . . . . . . . 260°C
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values are with respect to network ground terminal.
2. The package thermal impedance is calculated in accordance with JESD 51.
DISSIPATION RATING TABLE
T
≤ 25°C
OPERATING
FACTOR
T
= 70°C
T = 125°C
A
A
A
PACKAGE
POWER RATING
POWER RATING POWER RATING
FK
J
1375 mW
11.0 mW/°C
11.0 mW/°C
8.0 mW/°C
880 mW
880 mW
640 mW
275 mW
275 mW
200 mW
1375 mW
W
1000 mW
SN55ALS161 recommended operating conditions
MIN NOM
MAX
UNIT
Supply voltage, V
CC
4.75
2
5
5.25
V
TE and DC at T = –55°C to 125°C
A
High-level input voltage, V
IH
Bus and terminal at T = 25°C to 125°C
2
V
V
A
Bus and terminal at T = –55°C
2.1
A
TE and DC at T = –55°C to 125°C
0.8
0.8
A
Low-level input voltage, V
Bus and terminal at T = 25°C to –55°C
A
IL
Bus and terminal at T = 125°C
0.7
A
Bus ports with pullups active (V
= 5 V)
–5.2
–800
48
mA
CC
High-level output current, I
OH
Terminal ports
µA
Bus ports
Low-level output current, I
mA
OL
Terminal ports
16
Operating free-air temperature, T
–55
125
°C
A
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
SN75ALS161 recommended operating conditions
MIN NOM
MAX
UNIT
V
Supply voltage, V
CC
4.75
2
5
5.25
High-level input voltage, V
IH
V
Low-level input voltage, V
0.8
–5.2
–800
48
V
IL
Bus ports with pullups active
Terminal ports
mA
µA
High-level output current, I
OH
Bus ports
Low-level output current, I
mA
OL
Terminal ports
16
Operating free-air temperature, T
0
70
°C
A
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
SN55ALS161
SN75ALS161
†
PARAMETER
UNIT
TEST CONDITIONS
‡
‡
MIN TYP
MAX
MIN TYP
MAX
V
V
Input clamp voltage
I = –18 mA
–0.8
–1.5
–0.8
0.65
–1.5
V
IK
I
Bus
0.4
Hysteresis
V
V
= 5 V,
= 5 V,
T
A
= –55°C and 25°C
= 125°C
0.4
0.55
V
V
voltage
hys
CC
Bus
(V
IT+
– V
)
IT–
T
A
0.25
CC
T
= 25°C
A
2.7
2.5
2.2
2.0
3.5
3.5
2.7
2.7
2.2
2.2
3.5
3.5
and MAX
Terminal
Bus
I
= – 800 µA,
V
= MIN
= MIN
OH
OH
CC
CC
High-level
output
voltage
T
= MIN
A
§
V
V
OH
T
= 25°C
A
and MAX
I
= – 5.2 mA,
V
T
A
= MIN
Low-level
output
voltage
Terminal
Bus
I
I
= 16 mA,
V
V
= MIN
= MIN
0.3
0.5
0.5
0.3
0.5
0.5
OL
CC
V
OL
= 48 mA¶,
0.35
0.35
OL
CC
Input current
I
at maximum Terminal V = 5.5 V,
I
V
= MAX
0.2
0.1
100
20
0.2
0.1
100
µA
I
CC
input voltage
High-level
Terminal
I
I
V = 2.7 V,
I
V
V
= MAX
= MAX
20
µA
µA
IH
CC
input current
and
control
inputs
Low-level
input current
V = 0.5 V,
I
–30 –100
–10
3
–100
IL
CC
Driver disabled,
I
I
= 0
2.5
3
3.7
2.5
3.7
I(bus)
V
Voltage at GPIB I/O port
V
V
= 5 V
I/O
CC
= –12 mA
–1.5
–1.5
(SN55’)
I(bus)
V
V
= –1.5 V to 0.4 V
= 0.4 V to 2.5 V
–1.3
0
–1.3
0
I(bus)
–3.2
–3.2
I(bus)
Driver disabled,
Power
on
2.5
–3.2
2.5
–3.2
Current into
GPIB I/O
port
V
= 5 V
V
I(bus)
= 2.5 V to 3.7 V
mA
CC
(SN55’)
I
I/O
V
V
V
= 3.7 V to 5 V
= 5 V to 5.5 V
= 0 to 2.5 V
0
2.5
2.5
40
0
2.5
2.5
40
I(bus)
I(bus)
I(bus)
0.7
0.7
Power off
Terminal
V
V
= 0
µA
CC
Short-circuit
output
current
–15
–25
–35
–75
–15
–25
–35
–50
–75
§
= MAX
mA
I
I
CC
OS
Bus
–50 –125
–125
TE and DC low,
Supply current
No load,
= 0 to 5 V,
55
30
90
55
30
75
mA
pF
CC
V
CC
= MAX
GPIB I/O port
capacitance
C
V
CC
V
= 0 to 2 V, f = 1 MHz
I/O
I/O
†
‡
§
¶
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
All typical values are at V = 5 V, T = 25°C.
CC
A
V
and I
OS
apply to 3-state outputs only.
= 24 mA at –55°C.
OH
For SN55’, I
OL
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
SN55ALS161 switching characteristics, V
= 5 V and C = 50 pF (unless otherwise noted)
L
CC
FROM
TO
(OUTPUT)
TEST
CONDITIONS
†
‡
TYP
PARAMETER
(INPUT)
MIN
MAX
UNIT
T
A
25°C
Full range
25°C
10
10
17
20
14
18
25
37
14
19
15
22
15
24
30
52
14
18
28
44
19
30
30
64
19
30
35
54
20
40
36
70
20
40
34
56
24
43
Propagation delay time,
low- to high-level output
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PHZ
PZL
PLZ
PZH
PHZ
PZL
PLZ
PZH
PHZ
PZL
PLZ
Bus (Except
SRQ, NDAC,
and NRFD)
Terminal
Terminal
Bus
See Figure 1
See Figure 2
See Figure 2
ns
Propagation delay time,
high- to low-level output
Full range
25°C
Propagation delay time,
low- to high-level output
Full range
25°C
Bus (NRFD,
SRQ, NDAC)
ns
ns
10
10
10
20
8
Propagation delay time,
high- to low-level output
Full range
25°C
Propagation delay time,
low- to high-level output
Full range
25°C
Terminal
Propagation delay time,
high- to low-level output
Full range
25°C
Output enable time to high level
Full range
25°C
Output disable time from high
level
Bus (ATN,
REN, IFC,
and DAV)
Full range
25°C
TE or DC
TE or DC
TE or DC
See Figure 3
See Figure 3
See Figure 4
ns
ns
ns
16
10
24
13
21
13
24
12
20
13
Output enable time to low level
Full range
25°C
Output disable time from low
level
Full range
25°C
Output enable time to high level
Full range
25°C
Output disable time from high
level
Full range
25°C
Bus (EOI)
Output enable time to low level,
Full range
25°C
Output disable time from low
level
Full range
25°C
Output enable time to high level
Full range
25°C
Output disable time from high
level
Full range
25°C
Terminal
Output enable time to low level
Full range
25°C
Output disable time from low
level
Full range
†
‡
Full range is –55°C to 125°C.
All typical values are at V
= 5 V.
CC
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
SN75ALS161 switching characteristics over recommended operating free-air temperature range,
V
= 5 V
CC
FROM
(INPUT)
TO
(OUTPUT)
TEST
CONDITIONS
†
PARAMETER
MIN
MAX
20
UNIT
TYP
Propagation delay time,
low- to high-level output
t
t
t
t
10
12
5
PLH
PHL
PLH
PHL
C
= 30 pF,
See Figure 1
L
Terminal
Bus
Bus
ns
Propagation delay time,
high- to low-level output
20
Propagation delay time,
low- to high-level output
10
C
= 30 pF,
See Figure 2
L
Terminal
ns
ns
Propagation delay time,
high- to low-level output
7
14
t
t
t
t
t
t
t
t
Output enable time to high level
Output disable time from high level
Output enable time to low level
Output disable time from low level
Output enable time to high level
Output disable time from high level
Output enable time to low level
Output disable time from low level
30
20
45
20
30
25
30
25
PZH
PHZ
PZL
PLZ
PZH
PHZ
PZL
PLZ
Bus (ATN, EOI,
REN, IFC, and
DAV)
C
= 15 pF,
See Figure 3
L
TE or DC
TE or DC
C
= 15 pF,
See Figure 4
L
Terminal
ns
†
All typical values are at T = 25°C.
A
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
PARAMETER MEASUREMENT INFORMATION
5 V
[7 V]
200 Ω
[500 Ω]
From (Bus)
Output Under
Test
Test Point
C = 30 pF
480 Ω
[500 Ω]
L
= [50 pF]
(see Note A)
LOAD CIRCUIT
3 V
0 V
Terminal
Input
(see Note B)
1.5 V
1.5 V
t
tPHL
PLH
V
OH
OH
2.2 V
Bus Output
1 V
V
VOLTAGE WAVEFORMS
[ ] denotes the SN55ALS161 military test conditions.
NOTES: A. includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t ≤ 6 ns, t ≤ 6 ns,
C
L
r
f
Z
O
= 50 Ω.
Figure 1. Terminal-to-Bus Load Circuit and Voltage Waveforms
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
PARAMETER MEASUREMENT INFORMATION
4.3 V
[7 V]
240 Ω
[500 Ω]
From (Terminal)
Output Under
Test
Test Point
3 kΩ
[500 Ω]
C = 30 pF
L
= [50 pF]
(see Note A)
LOAD CIRCUIT
3 V
0 V
Bus Input
(see Note B)
1.5 V
1.5 V
t
t
PLH
PHL
V
OH
OL
Terminal
Output
1.5 V
1.5 V
V
VOLTAGE WAVEFORMS
[ ] denotes the SN55ALS161 military test conditions.
NOTES: A.
C includes probe and jig capacitance.
L
B. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t ≤ 6 ns, t ≤ 6 ns,
r
f
Z
O
= 50 Ω.
Figure 2. Bus-to-Terminal Load Circuit and Voltage Waveforms
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
PARAMETER MEASUREMENT INFORMATION
S1
5 V
[7 V]
200 Ω
From (Bus)
Output Under
Test
[500 Ω]
Test Point
C = 15 pF
= [50 pF]
(see Note A)
L
480 Ω
[500 Ω]
LOAD CIRCUIT
3 V
Control
Input
1.5 V
1.5 V
(see Note B)
0 V
t
PZH
t
PHZ
V
OH
Bus
Output
S1 Open
90%
2 V
0 V
t
t
PLZ
PZL
≈3.5 V
Bus
Output
S1 Closed
1 V
0.5 V
V
OL
VOLTAGE WAVEFORMS
[ ] denotes the SN55ALS161 military test conditions.
NOTES: A. includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t ≤ 6 ns, t ≤ 6 ns,
C
L
r
f
Z
O
= 50 Ω.
Figure 3. Bus Load Circuit and Voltage Waveforms
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
PARAMETER MEASUREMENT INFORMATION
S1
4.3 V
[7 V]
240 Ω
[500 Ω]
From (Terminal)
Output Under
Test
Test Point
C = 15 pF
= [50 pF]
(see Note A)
L
3 kΩ
[500 Ω]
LOAD CIRCUIT
3 V
0 V
Control
Input
(see Note B)
1.5 V
1.5 V
t
t
PZH
PHZ
V
OH
Terminal
Output
S1 Open
90%
1.5 V
0 V
t
t
PLZ
PZL
≈4 V
Terminal
Output
S1 Closed
1 V
0.7 V
V
OL
VOLTAGE WAVEFORMS
[ ] denotes the SN55ALS161 military test conditions.
NOTES: A. includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 1 MHz, 50% duty cycle, t ≤ 6 ns, t ≤ 6 ns,
C
L
r
f
Z
O
= 50 Ω.
Figure 4. Terminal Load Circuit and Voltage Waveforms
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
†
TYPICAL CHARACTERISTICS
TERMINAL I/O PORTS
HIGH-LEVEL OUTPUT VOLTAGE
vs
TERMINAL I/O PORTS
LOW-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT CURRENT
4
3.5
3
0.6
0.5
0.4
0.3
0.2
0.1
0
V
T
= 5 V
CC
= 25°C
V
T
A
= 5 V
= 25°C
CC
A
2.5
2
1.5
1
0.5
0
0
– 5 – 10 – 15 – 20 – 25 – 30 – 35 – 40
0
10
20
30
40
50
60
I
– High-Level Output Current – mA
I
– Low-Level Output Current – mA
OH
OL
Figure 5
Figure 6
TERMINAL OUTPUT VOLTAGE
vs
BUS INPUT VOLTAGE
4
V
= 5 V
CC
No Load
= 25°C
3.5
3
T
A
2.5
2
V
IT +
V
IT –
1.5
1
0.5
0
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
V – Bus Input Voltage – V
I
Figure 7
†
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55ALS161, SN75ALS161
OCTAL GENERAL-PURPOSE INTERFACE BUS TRANSCEIVERS
SLLS019E – JUNE 1986 – REVISED NOVEMBER 1999
†
TYPICAL CHARACTERISTICS
GPIB I/O BUS
HIGH-LEVEL OUTPUT VOLTAGE
vs
GPIB I/O BUS
LOW-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
LOW-LEVEL OUTPUT CURRENT
4
3
2
1
0
0.6
0.5
0.4
0.3
0.2
0.1
0
V
T
A
= 5 V
= 25°C
CC
V
T
A
= 5 V
= 25°C
CC
0
– 10
– 20
– 30
– 40
– 50
– 60
0
10 20 30 40 50 60 70 80 90 100
I
– High-Level Output Current – mA
I
– Low-Level Output Current – mA
OH
OL
Figure 8
Figure 9
GPIB I/O BUS
CURRENT
vs
BUS OUTPUT VOLTAGE
vs
TERMINAL INPUT VOLTAGE
VOLTAGE
4
V
T
= 5 V
V
= 5 V
CC
= 25°C
CC
2
1
0
No Load
T
A
A
= 25°C
3
– 1
– 2
– 3
– 4
– 5
– 6
– 7
2
1
The Unshaded Area
Conforms to Paragraph 3.5.3
of IEEE Standard 488-1978
0
0.9
– 2
– 1
0
1
2
3
4
5
6
1
1.1
1.2
1.3 1.4
1.5 1.6
1.7
V
I/O
– Voltage – V
V – Terminal Input Voltage – V
I
Figure 10
Figure 11
†
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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