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PDF MC74AC540 Data sheet ( Hoja de datos )
| Número de pieza | MC74AC540 | |
| Descripción | (MC74AC540 / MC74AC541) Octal Buffer/Line Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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MC74AC540, MC74ACT540,
MC74AC541, MC74ACT541
Octal Buffer/Line Driver
with 3-State Outputs
The MC74AC540/74ACT540 and MC74AC541/74ACT541 are
octal buffer/line drivers designed to be employed as memory and
address drivers, clock drivers and bus oriented transmitter/receivers.
The MC74AC541/74ACT541 is a noninverting option of the
MC74AC540/74ACT540.
These devices are similar in function to the
MC74AC240/74ACT240 and MC74AC244/74ACT244 while
providing flow−through architecture (inputs on opposite side from
outputs). This pinout arrangement makes these devices especially
useful as output ports for microprocessors, allowing ease of layout and
greater PC board density.
Features
• 3−State Outputs
• Inputs and Outputs Opposite Side of Package, Allowing Easier
Interface to Microprocessors
• Outputs Source/Sink 24 mA
• MC74AC540/74ACT540 Provides Inverted Outputs
• MC74AC541/74ACT541 Provides Noninverted Outputs
• ′ACT540 and ′ACT541 Have TTL Compatible Inputs
• These are Pb−Free Devices
TRUTH TABLE
Inputs
OE1
L
H
X
L
OE2
L
X
H
L
D
H
X
X
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
′540 ′541
LH
ZZ
ZZ
HL
www.onsemi.com
SOIC−20W
DW SUFFIX
CASE 751D
1
TSSOP−20
DT SUFFIX
CASE 948E
1
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 8 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 9
1
Publication Order Number:
MC74AC540/D
1 page  
MC74AC540, MC74ACT540, MC74AC541, MC74ACT541
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
74AC
74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
Min Typ Max
TA = −40°C to +85°C
CL = 50 pF
Min Max
Unit
Fig.
No.
Propagation Delay
tPLH Data to Output (′AC540)
3.3 1.5 5.5 7.5
5.0 1.5 4.0 6.0
1.0
1.0
8.0
6.5 ns 3−5
Propagation Delay
tPHL Data to Output (′AC540)
3.3 1.5 5.0 7.0
5.0 1.5 4.0 5.5
1.0
1.0
7.5
6.0 ns 3−5
Output Enable Time
tPZH
(′AC540)
3.3 3.0 8.5 11
5.0 2.0 6.5 8.5
2.5
2.0
12
9.5 ns 3−7
Output Enable Time
tPZL (′AC540)
3.3 2.5 7.5 10
5.0 2.0 6.0 7.5
2.0
1.5
11
8.5 ns 3−8
Output Disable Time
tPHZ
(′AC540)
3.3 2.5
5.0 1.5
8.5 13
7.5 10.5
1.5
1.0
14
11 ns 3−7
Output Disable Time
tPLZ (′AC540)
3.3 2.0 7.0 10
5.0 1.5 6.0 8.0
2.0
1.5
11
9.0 ns 3−8
Propagation Delay
tPLH Data to Output (′AC541)
3.3 2.0 5.5 8.0
5.0 1.5 4.0 6.0
1.5
1.0
9.0
6.5 ns 3−5
Propagation Delay
tPHL Data to Output (′AC541)
3.3 2.0 5.5 8.0
5.0 1.5 4.0 6.0
1.5
1.0
8.5
6.5 ns 3−5
Output Enable Time
tPZH
(′AC541)
3.3 3.0
5.0 2.0
8.0 11.5
6.0 8.5
3.0
1.5
12.5
9.5 ns 3−7
Output Enable Time
tPZL (′AC541)
3.3 2.5 7.0 10
5.0 1.5 5.5 7.5
2.5
1.0
11.5
8.5 ns 3−8
Output Disable Time
tPHZ
(′AC541)
3.3 3.5
5.0 2.0
9.0 12.5
7.0 9.5
2.5
1.0
14
10.5 ns 3−7
Output Disable Time
tPLZ (′AC541)
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
Voltage Range 5.0 V is 5.0 V ±0.5 V.
3.3 2.5 6.5 9.5
5.0 2.0 5.5 7.5
2.0
1.0
10.5
8.5 ns 3−8
www.onsemi.com
5
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| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MC74AC540.PDF ] | |
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