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Details, datasheet, quote on part number:JD54LS151B2A
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Datasheet text preview:
54LS151 DM54LS151 DM74LS151 Data Selector Multiplexer
June 1989
54LS151 DM54LS151 DM74LS151 Data Selector Multiplexer
General Description
This data selector multiplexer contains full on-chip decoding to select the desired data source The 'LS151 selects one-of-eight data sources The 'LS151 has a strobe input A which must be at a low logic level to enable these devices high level at the strobe forces the W output high and the T Y output low he 'LS151 features complementary W and Y outputs
Y Y
eatures
Select one-of-eight data lines Performs parallel-to-serial conversion Y Permits multiplexing from N lines to one line Y Also for use as Boolean function generator Y Typical average propagation delay time data input to W output 12 5 ns F Y Typical power dissipation 30 mW Y Alternate Military Aerospace device (54LS151) is availD able Contact a National Semiconductor Sales Office istributor for specifications
C
onnection Diagram
Dual-In-Line Package
TL F 6392 1
OD er Number 54LS151DMQB 54LS151FMQB 54LS151LMQB rd M54LS151J DM54LS151W DM74LS151M or DM74LS151N See NS Package Number E20A J16A M16A N16E or W16A
Truth Table
Inputs Select C X L L L L H H H H B X L L H H L L H H A X L H L H L H L H Strobe S H L L L L L L L L Outputs Y L D0 D1 D2 D3 D4 D5 D6 D7 W H D0 D1 D2 D3 D4 D5 D6 D7
H e High Level L e Low Level X e Don't Care D0 D1 D7 e the level of the respective D input
C1995 National Semiconductor Corporation
TL F 6392
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings (Note)
p If Military Aerospace specified devices are required lease contact the National Semiconductor Sales S Office Distributors for availability and specifications upply Voltage Input Voltage 7V 7V Note The ``Absolute Maximum Ratings'' are those values beyond which the safety of the device cannot be guaranteed The device should not be operated at these limits The parametric values defined in the ``Electrical Characteristics'' table are not guaranteed at the absolute maximum ratings T he ``Recommended Operating Conditions'' table will define the conditions for actual device operation
Operating Free Air Temperature Range R b 55 C to a 125 C DM54LS and 54LS DM74LS 0 C to a 70 C b 65 C to a 150 C Storage Temperature Range
ecommended Operating Conditions
Symbol VCC VIH VIL IOH IOL TA Parameter Min Supply Voltage High Level Input Voltage Low Level Input Voltage High Level Output Current Low Level Output Current Free Air Operating Temperature
b 55
DM54LS151 Nom 5 Max 55 Min 4 75 2 07
b0 4
DM74LS151 Nom 5 Max 5 25
Units V V 08
b0 4
45 2
V mA mA
4 125 0
8 70
C
Electrical Characteristics
Symbol VI VOH Parameter Input Clamp Voltage High Level Output Voltage Low Level Output Voltage
over recommended operating free air temperature range (unless otherwise noted) Conditions VCC e Min II e b18 mA VCC e Min IOH e Max VIL e Max VIH e Min VCC e Min IOL e Max VIL e Max VIH e Min IOL e 4 mA VCC e Min DM54 DM74 DM54 DM74 DM74 25 27 34 34 0 25 0 35 0 25 04 05 04 01 20
b0 4
Min
Typ (Note 1)
Max
b1 5
Units V V
VOL
V
II IIH IIL IOS
Input Current Input Voltage
Max
VCC e Max VI e 7V VCC e Max VI e 2 7V VCC e Max VI e 0 4V VCC e Max (Note 2) VCC e Max (Note 3) DM54 DM74
b 20 b 20
mA mA mA mA mA
High Level Input Current Low Level Input Current Short Circuit Output Current Supply Current
b 100 b 100
ICC
6
10
Note 1 All typicals are at VCC e 5V TA e 25 C Note 2 Not more than one output should be shorted at a time and the duration should not exceed one second ote 3 ICC is measured with all outputs open strobe and data select inputs at 2 5V and all other inputs open 4
Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
Symbol tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL Parameter Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output From (Input) To (output) Select (4 Levels) to Y Select (4 Levels) to Y Select (3 Levels) to W Select (3 Levels) to W Strobe to Y Strobe to Y Strobe to W Strobe to W D0 thru D7 to Y D0 thru D7 to Y D0 thru D7 to W D0 thru D7 to W RL e 2 kX CL e 15 pF Min Max 43 30 23 32 42 32 24 30 32 26 21 20 CL e 50 pF Min Max 46 36 25 40 44 40 27 36 35 33 25 27 ns ns ns ns ns ns ns ns ns ns ns ns Units
Logic Diagram
LS151
Address Buffers for 54LS151 74LS151
TL F 6392 3
TL F 6392 2
See Address Buffers to the Right
3
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