TRI-STATE Receiver. DS3892 Datasheet

DS3892 Datasheet PDF, Equivalent


Part Number

DS3892

Description

(DS3890 / DS3892) Octal Trapezoidal Driver / Octal TRI-STATE Receiver

Manufacture

National Semiconductor

Total Page 8 Pages
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DS3892 Datasheet
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January 1996
DS3890 BTL Octal Trapezoidal Driver
DS3892 BTL Octal TRI-STATE Receiver
General Description
The DS3890 and DS3898 are designed specifically to over-
come problems associated with driving densely populated
backplanes These products provide significant improve-
ment in both speed and data integrity in comparison to con-
ventional bus drivers and receivers Their low output capaci-
tance low voltage swing and noise immunity features make
them ideal for driving low impedance busses with minimum
power dissipation
The DS3890 features an open collector outputs that gener-
ate precise trapezoidal waveforms with typical rise and fall
times of 6 ns which are relatively independent of capacitive
loading conditions These controlled output characteristics
significantly reduce noise coupling to adjacent lines
To minimize bus loading the DS3890 also features a
schottky diode in series with the open collector outputs that
isolates the driver output capacitance in the disabled state
With this type of configuration the output low voltage is typi-
cally ‘‘1V’’ The output high level is intended to be 2 volts
Logic and Connection Diagrams
DS3890 Octal Trapezoidal Driver
This is achieved by terminating the bus with a pull up resis-
tor Both devices can drive an equivalent DC load of 18 5X
(or greater) in the defined configuration
(General Description to be continued)
Features
Y Driver output capacitance less than 5 pF
Y 1 volt bus signal reduces power consumption
Y Trapezoidal driver waveforms (tr tf typically 6 ns) re-
duces noise coupling to adjacent lines
Y Precise receiver threshold track the bus logic high level
to maximize noise immunity in both logic high ahd low
states
Y Open collector driver output allows wire-or connection
Y Advanced low power schottky technology
Y Glitch free power up down protection
Y TTL compatible driver and control inputs and receiver
output
Y BTL compatible
DS3892 Octal TRI-STATE Receiver
TL F 8700 – 1
Order Numbers DS3892M DS3890N or DS3892N
See NS Package Number M20B or N20A
TL F 8700 – 2
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1996 National Semiconductor Corporation TL F 8700
RRD-B30M36 Printed in U S A
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DS3892 Datasheet
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Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
Control Input Voltage
Driver Input and Receiver Output
Receiver Input and Driver Output
Storage Temperature Range
Lead Temperature (Soldering 4 sec )
6V
5 5V
5 5V
2 5V
b65 C to a165 C
260 C
Recommended Operating
Conditions
Min Max
Supply Voltage
4 75 5 25
Temperature (TA)
0
70
DS3890 Electrical Characteristics (Notes 2 and 3)
DRIVER AND CONTROL INPUTS
Symbol
Conditions
VIH
VIL
IIL An
IIL Dis
IIH
II
VCL
DRIVER OUTPUT
VCCeMax VINe0 4V
VCCeMax VINe0 4V
VCCeMax VINe2 4V
VCCeMax VINe5 25V
VCCeMin IINeb12 mA
VOL
IOH
IO
IIL
ICC Low
ICC High
VCCeMin RLe18 5X
VCCeMax VOUTe2V
VCCe0V VOUTe2V
VCCeMax VOUTe0 75V
VCCeMax
Min
20
0 75
b20
Typ
b1
b180
b0 9
10
10
b100
50
Max
08
b1 6
b400
40
1
b1 5
12
100
100
b250
80
100
DS3892 Electrical Characteristics (Notes 2 and 3)
CONTROL INPUTS
Symbol
VIH
VIL
IIL
IIH
II
VCL
RECEIVER
VOL
VOH
IOS
VTH Rec
IIH Rec
II Rec
IIL Rec
ICC Low
ICC High
Conditions
VCCeMax VINe0 4V
VCCeMax VINe2 4V
VCCeMax VINe5 25V
VCCeMin IINeb12 mA
VCCeMin IOLe16 mA
VCCeMin IOHeb400 mA
VCCeMax VOUTe0V
VCCe5V
VCCeMax VINe2V
VCCe0V VINe2V
VCCeMax VINe0 75V
VCCeMax
Min
20
24
b20
1 47
Typ
b180
b0 9
0 35
32
b70
1 55
10
Max
08
b400
40
1
b1 5
05
b100
1 62
100
100
100
80
60
Units
V
C
Units
V
V
mA
mA
mA
mA
V
V
mA
mA
mA
mA
mA
Units
V
V
mA
mA
mA
V
V
V
mA
V
mA
mA
mA
mA
mA
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2


Features Datasheet pdf www.DataSheet4U.com DS3890 BTL Octal Tr apezoidal Driver DS3892 BTL Octal TRI-S TATE Receiver January 1996 DS3890 BTL Octal Trapezoidal Driver DS3892 BTL Oc tal TRI-STATE Receiver General Descript ion The DS3890 and DS3898 are designed specifically to overcome problems assoc iated with driving densely populated ba ckplanes These products provide signifi cant improvement in both speed and data integrity in comparison to conventiona l bus drivers and receivers Their low o utput capacitance low voltage swing and noise immunity features make them idea l for driving low impedance busses with minimum power dissipation The DS3890 f eatures an open collector outputs that generate precise trapezoidal waveforms with typical rise and fall times of 6 n s which are relatively independent of c apacitive loading conditions These cont rolled output characteristics significa ntly reduce noise coupling to adjacent lines To minimize bus loading the DS389 0 also features a schottky diode in series with the open collec.
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