74154, LS154 Decoder/Demultiplexers 1-of-16 Decoder/Demultip

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74154, LS154 Decoder/Demultiplexers 1-of-16 Decoder/Demultip

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Sgnetics
74154, LS154
Decoder/Demultiplexers
1-of-16 Decoder/Demultiplexer Product Specification
Logic Products
16-line demultiplexing capability
Mutually exclusive outputs
2-input enable gate strobing expansion
DESCRIPTION
'154 decoder accepts four active HIGH binary address inputs provides mutually exclusive active outputs. 2-input enable gate used strobe decoder eliminate normal decoding "glitches" outputs, used expansion decoder. enable gate AND'ed inputs which must enable outputs.
'154 used 1-of-16 demultiplexer using enable inputs multiplexed data input. When other enable LOW, addressed output will follow state applied data.
TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL)
74154 21ns 34mA
15ns
ORDERING CODE
PACKAGES COMMERCIAL RANGE
Plastic N74154N, N74LS154N
note:
information regarding devices processed Military Specifications, Signetics Military Products Data Manual.
INPUT OUTPUT LOADING FAN-OUT TABLE
PINS DESCRIPTION 74LS
Inputs LSul
Outputs 10ul 10LSul
note:
Where unit load (ul) understood 40>iA -1,6mA l|L, 74LS unit load (LSul) 20jjA -0.4mA l|L.
CONFIGURATION
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
ONDE
1314
TTTTTTTTTTTTTTTT
111314 1516
LSO62I0S
December 1985
5-267
853-0526 81502
This Material Copyrighted Respective Manufacturer
Signetics Logic Products
Product Specification
Decoder/Demultiplexers
LOGIC DIAGRAM
numbers
FUNCTION TABLE
INPUTS OUTPUT
HIGH voltage level voltage level Don't care
ABSOLUTE MAXIMUM RATINGS (Over operating free-air temperature range unless otherwise noted.)
PARAMETER 74LS UNIT
Supply voltage
Input voltage -0.5 +5.5 -0.5 +7.0
Input current
Vout Voltage applied output HIGH output state -0.5 +Vcc -0.5
Operating free-air temperature range
74154,
December 1985 5-268
This Material Copyrighted Respective Manufacturer
Signetics Logic Products
Product Specification
Decoder/Demultiplexers
RECOMMENDED OPERATING CONDITIONS
74154,
PARAMETER UNIT
Supply voltage 4.75 5.25 4.75 5.25
HIGH-level input voltage
LOW-level Input voltage
Input clamp current
HIGH-level output current -800 -400
LOW-level output current
Operating free-air temperature
ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.)
PARAMETER TEST CONDITIONS1 74154 74LS154 UNIT
Typ2 Typ2
HIGH-level output voltage min, min, max,
LOW-level output voltage min, min, 0.35
(74LS) 0.25
Input clamp voltage min, -1.5 -1.5
Input current maximum input voltage 5.5V
7.0V
HIGH-level input current 2.4V
2.7V
11L_ LOW-level input current MAX, 0.4V -1.6 -0.4
Short-circuit output current3 -100
Supply current4 (total)
notes:
conditions shown MAX, appropriate value specified under recommended operating conditions applicable type.
typical values
tested with V0(jt 0.5V 0.5V. more than output should shorted time duration short circuit should exceed second.
Measure with inputs grounded outputs open.
ELECTRICAL CHARACTERISTICS 5.0V
PARAMETER TEST CONDITIONS 74LS UNIT
15pF, 15pF, 2kfi
tpLH Propagation delay tpHL Address output Waveform
tpLH Propagation delay tpHL Enable output Waveform
December 1985 5-269
This Material Copyrighted Respective Manufacturer
Signetics Logic Products
Product Specification
Decoder/Demultiplexers
WAVEFORMS
74154,
^-JF*
l-<plh-j
r'PHi
vout
h'plh-j
WF07570S
1.3V 74LS; 1.6V other families.
Waveform Waveform Inverting Outputs
Vm-1.3V 74LS; 1.5V other families.
Waveform Waveform Non-Inverting Outputs
TEST CIRCUITS WAVEFORMS
WF064S0S
1.3V 74LS; 1.5V other families.
Test Circuit Totem-Pole Outputs input Pulse Definition
DEFINITIONS
Load resistor Vcc; CHARACTERISTICS value. Load capacitance includes probe capacitance;
CHARACTERISTICS value. Termination resistance should equal Zout
Pulse Generators. Diodes 1N916, 1N3064, equivalent. tTLH. tTHL Values should less than equal table entries.
FAMILY INPUT PULSE REQUIREMENTS
Amplitude Rep. Rate Pulse Width tTHL
3.0V 1MHz 500ns
3.0V 1MHz 500ns 15ns
3.0V 1MHz 500ns 2.5ns 2.5ns
December 1985 5-270
This Material Copyrighted Respective Manufacturer

74154, LS154 Decoder/Demultiplexers 1-of-16 Decoder/Demultip

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