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54LS258B 데이터시트 PDF




Motorola Semiconductors에서 제조한 전자 부품 54LS258B은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 54LS258B 기능
기능 QUAD 2-INPUT MULTIPLEXER
제조업체 Motorola Semiconductors
로고 Motorola Semiconductors 로고


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54LS258B 데이터시트, 핀배열, 회로
QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad
2-Input Multiplexers with 3-state outputs. Four bits of data from two sources
can be selected using a Common Data Select input. The four outputs present
the selected data in true (non-inverted) form. The outputs may be switched to
a high impedance state with a HIGH on the common Output Enable (EO) In-
put, allowing the outputs to interface directly with bus oriented systems. It is
fabricated with the Schottky barrier diode process for high speed and is com-
pletely compatible with all Motorola TTL families.
Schottky Process For High Speed
Multiplexer Expansion By Tying Outputs Together
Non-Inverting 3-State Outputs
Input Clamp Diodes Limit High Speed Termination Effects
Special Circuitry Ensures Glitch Free Multiplexing
ESD > 3500 Volts
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC E0 I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
SN54/74LS257B
VCC = PIN 16
GND = PIN 8
1 2 3 4 56 78
S I0a I1a Za I0b I1b Zb GND
VCC E0 I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
SN54/74LS258B
1 2 3 4 56 78
S I0a I1a Za I0b I1b Zb GND
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
SN54/74LS257B
SN54/74LS258B
QUAD 2-INPUT MULTIPLEXER
WITH 3-STATE OUTPUTS
LOW POWER SCHOTTKY
16
1
16
1
16
1
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
FAST AND LS TTL DATA
5-1




54LS258B pdf, 반도체, 판매, 대치품
SN54/74LS257B D SN54/74LS258B
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH Input HIGH Voltage
2.0
Guaranteed Input HIGH Voltage for
V All Inputs
54
VIL Input LOW Voltage 74
0.7 Guaranteed Input LOW Voltage for
0.8 V All Inputs
VIK
VOH
Input Clamp Diode Voltage
Output HIGH Voltage
54
74
– 0.65 – 1.5
2.4 3.4
2.4 3.1
V VCC = MIN, IIN = – 18 mA
V VCC = MIN, IOH = MAX, VIN = VIH
V or VIL per Truth Table
VOL
IOZH
IOZL
IIH
Output LOW Voltage
54, 74
74
Output Off Current — HIGH
Output Off Current — LOW
Input HIGH Current
Other Inputs
S Inputs
Other Inputs
S Inputs
0.25 0.4
0.35 0.5
20
– 20
20
40
0.1
0.2
V IOL = 12 mA
V IOL = 24 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
µA VCC = MAX, VOUT = 2.7 V
µA VCC = MAX, VOUT = 0.4 V
µA VCC = MAX, VIN = 2.7 V
mA VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
All Inputs
– 0.4 mA VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
– 30
Power Supply Current
Total, Output HIGH
LS257B
LS258B
– 130 mA VCC = MAX
10 mA
9.0
ICC
Total, Output LOW
LS257B
LS258B
16
14
mA VCC = MAX
Total, Output 3-State
LS257B
LS258B
19
16
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
mA
AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V) See SN54LS251 for Waveforms
Limits
Symbol
Parameter
Min Typ Max Unit
tPLH
tPHL
Propagation Delay, Data to Output
10
12
13
15
ns
tPLH
tPHL
Propagation Delay, Select to Output
14
14
21
21
ns
tPZH
Output Enable Time to HIGH Level
20 25 ns
tPZL
Output Enable Time to LOW Level
20 25 ns
tPLZ
Output Disable Time to LOW Level
16 25 ns
tPHZ
Output Disable Time from HIGH Level
18 25 ns
Test Conditions
Figures 1 & 2
Figures 1 & 2
CL = 45 pF
Figures 4 & 5
Figures 3 & 5
Figures 3 & 5
Figures 4 & 5
CL = 45 pF
RL = 667
CL = 5.0 pF
RL = 667
FAST AND LS TTL DATA
5-4

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