DS8836N [NSC]
Quad NOR Unified Bus Receiver; 四NOR统一总线接收器
| 型号： | DS8836N |
| 厂家： | 
National Semiconductor |
| 描述： | Quad NOR Unified Bus Receiver |
| 文件： | 总4页 (文件大小：105K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
February 1996
DS7836/DS8836 Quad NOR Unified Bus Receiver
General Description
Features
Y
e
0V
Low input current with normal
(15 mA typ)
V
or
V
The DS7836/DS8836 are quad 2-input receivers designed
for use in bus organized data transmission systems inter-
connected by terminated 120X impedance lines. The exter-
nal termination is intended to be 180X resistor from the bus
CC
CC
Y
Built-in input hysteresis (1V typ)
Y
High noise immunity (2V typ)
a
to the 5V logic supply together with a 390X resistor from
Y
Temperature-insensitive input thresholds track bus logic
levels
the bus to ground. The design employs a built-in input hys-
teresis providing substantial noise immunity. Low input cur-
rent allows up to 27 driver/receiver pairs to utilize a com-
mon bus. Performance is optimized for systems with bus
Y
Y
TTL compatible output
Matched, optimized noise immunity for ‘‘1’’ and ‘‘0’’
levels
s
rise and fall times
1.0 ms/V.
Y
High speed (18 ns typ)
Typical Application
120X Unified Data Bus
TL/F/5810–1
Connection Diagram
Dual-In-Line Package
TL/F/5810–2
Top View
Order Number DS7836J or DS8836N
See NS Package Number J14A or N14A
C
1996 National Semiconductor Corporation
TL/F/5810
RRD-B30M36/Printed in U. S. A.
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Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Operating Conditions
Min
Max
Units
Supply Voltage (V
DS7836
)
CC
4.5
5.5
V
V
Supply Voltage
7.0V
5.5V
DS8836
4.75
5.25
Temperature (T )
A
Current Voltage
b
a
125
DS7836
DS8836
55
C
§
§
b
a
65 C to 150 C
Storage Temperature Range
§
§
a
0
70
C
Maximum Power Dissipation* at 25 C
Cavity Package
Molded Package
§
1308 mW
1207 mW
Lead Temperature (Soldering, 4 seconds)
260 C
§
*Derate cavity package 8.7 mW/ C above 25 C; derate molded package 9.7
§
§
mW/ C above 25 C.
§
§
Electrical Characteristics
s
s
s
s
T
A
The following apply for V
V
CC
V , T
MAX MIN
T
, unless otherwise specified (Notes 2 and 3)
MAX
MIN
Symbol
Parameter
Conditions
Min
1.65
1.80
0.97
1.05
Typ
2.25
2.25
1.30
1.30
15
Max
2.65
2.50
1.63
1.55
50
Units
e
e
V
TH
V
IL
High Level Input Threshold
Low Level Input Threshold
Maximum Input Current
V
Max
Min
DS7836
DS8836
DS7836
DS8836
V
V
CC
CC
IN
V
V
V
V
e
e
e
I
4V
V
V
Max
0V
mA
mA
V
IN
CC
1
50
CC
e
e
e
e
e b
400 mA
16 mA
V
V
Logical ‘‘1’’ Output Voltage
Logical ‘‘0’’ Output Voltage
V
V
V
V
I
0.5V, I
OUT
2.4
OH
IN
IN
IN
IN
e
4V, I
OUT
0.25
25
0.4
V
OL
e
e
b
b
55
I
I
Output Short Circuit Current
Power Supply Current
0.5V, V
OUT
0V, V
CC
Max, (Note 4)
18
mA
mA
V
SC
CC
4V, (Per Package)
40
e b
e
12 mA, T
A
b
b
V
CL
Input Clamp Diode Voltage
25 C
§
1
1.5
IN
e
e
25 C unless otherwise specified
Switching Characteristics V
5V, T
§
CC
A
Symbol
Parameter
Conditions
Input to Logical ‘‘1’’ Output
Input to Logical ‘‘0’’ Output
Min
Typ
Max
30
Units
ns
t
pd
Propagation Delays
(Notes 4 and 5)
20
18
30
ns
Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Temperature Range’’
they are not meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation.
b
a
a
Note 2: Unless otherwise specified min/max limits apply across the 55 C to 125 C temperature range for the DS7836 and across the 0 C to 70 C range for
§
§
§
§
e
e
5V.
the DS8836. All typical values are for T
25 C and V
§
Note 3: All currents into device pins shown as positive, out of device pins as negative, all voltages referenced to ground unless otherwise noted. All values shown
A
CC
as max or min on absolute value basis.
e
e
e
e
e
e
e
e
Note 4: Fan-out of 10 load, C
15 pF total, measured from V
15 pF total, measured from V
1.3V to V
2.3V to V
1.5V, V
1.5V, V
0V to 3V pulse.
0V to 3V pulse.
LOAD
LOAD
IN
IN
OUT
OUT
IN
IN
Note 5: Fan-out of 10 load, C
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2
Physical Dimensions inches (millimeters)
Ceramic Dual-In-Line Package (J)
Order Number DS7836J
NS Package Number J14A
3
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Physical Dimensions inches (millimeters) (Continued)
Molded Dual-In-Line Package (N)
Order Number DS8836N
NS Package Number N14A
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