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SN54LS243 датащи(PDF) 3 Page - Motorola, Inc

номер детали SN54LS243
подробное описание детали  QUAD BUS TRANSCEIVER
PDF  5 Pages
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производитель  MOTOROLA [Motorola, Inc]
домашняя страница  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

SN54LS243 датащи(HTML) 3 Page - Motorola, Inc

  SN54LS243 Datasheet HTML 1Page - Motorola, Inc SN54LS243 Datasheet HTML 2Page - Motorola, Inc SN54LS243 Datasheet HTML 3Page - Motorola, Inc SN54LS243 Datasheet HTML 4Page - Motorola, Inc SN54LS243 Datasheet HTML 5Page - Motorola, Inc  
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AC WAVEFORMS
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
VIN
VOUT
tPLH
tPHL
1.3 V
1.3 V
VIN
VOUT
SW2
CL*
5 kΩ
SW1
VCC
RL
TO OUTPUT
UNDER TEST
1.3 V
tPHL
tPLH
VE
VE
VOUT
VE
VE
VOUT
tPHZ
1.3 V
1.3 V
tPZL
tPLZ
VOL
1.3 V
≥VOH
0.5 V
tPZH
1.3 V
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
≈ 1.3 V
0.5 V
≈ 1.3 V
SWITCH POSITIONS
5-395
FAST AND LS TTL DATA
SN54/74LS242
• SN54/74LS243
AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
LS242
LS243
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Propagation Delay, Data to Output
9.0
12
14
18
12
12
18
18
ns
CL = 45 pF,
RL = 667 Ω
tPZH
Output Enable Time to HIGH Level
15
23
15
23
ns
CL = 45 pF,
RL = 667 Ω
tPZL
Output Enable Time to LOW Level
20
30
20
30
ns
tPLZ
Output Disable Time from LOW Level
15
25
15
25
ns
CL = 5.0 pF,
RL = 667 Ω
tPHZ
Output Disable Time from HIGH Level
10
18
10
18
ns
CL = 5.0 pF,
RL = 667 Ω
SYMBOL
SW1
SW2
tPZH
Open
Closed
tPZL
Closed
Open
tPLZ
Closed
Closed
tPHZ
Closed
Closed



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