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PDF MC74LCX540 Data sheet ( Hoja de datos )
| Número de pieza | MC74LCX540 | |
| Descripción | Low-Voltage CMOS Octal Buffer Flow Through Pinout | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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MC74LCX540
Low-Voltage CMOS
Octal Buffer
Flow Through Pinout
With 5 V−Tolerant Inputs and Outputs
(3−State, Inverting)
The MC74LCX540 is a high performance, inverting octal buffer
operating from a 2.3 to 3.6 V supply. This device is similar in function
to the MC74LCX240, while providing flow through architecture.
High impedance TTL compatible inputs significantly reduce current
loading to input drivers while TTL compatible outputs offer improved
switching noise performance. A VI specification of 5.5 V allows
MC74LCX540 inputs to be safely driven from 5 V devices. The
MC74LCX540 is suitable for memory address driving and all TTL
level bus oriented transceiver applications.
Current drive capability is 24 mA at the outputs. The Output Enable
(OE1, OE2) inputs, when HIGH, disables the outputs by placing them
in a HIGH Z condition.
Features
• Designed for 2.3 to 3.6 V VCC Operation
• 5 V Tolerant − Interface Capability With 5 V TTL Logic
• Supports Live Insertion and Withdrawal
• IOFF Specification Guarantees High Impedance When VCC = 0 V
• LVTTL Compatible
• LVCMOS Compatible
• 24 mA Balanced Output Sink and Source Capability
• Near Zero Static Supply Current in All Three Logic States (10 mA)
Substantially Reduces System Power Requirements
• Latchup Performance Exceeds 500 mA
• ESD Performance:
♦ Human Body Model >2000 V
♦ Machine Model >200 V
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
http://onsemi.com
20
1
SOIC−20 WB
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
LCX540
AWLYYWWG
1
20
1
TSSOP−20
DT SUFFIX
CASE 948E
20
LCX
540
ALYW G
G
1
A=
L, WL =
Y, YY =
W, WW =
G or G =
Assembly Location
Wafer Lot
Year
Work Week
Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
October, 2012 − Rev. 8
1
Publication Order Number:
MC74LCX540/D
1 page  
MC74LCX540
Dn 1.5 V
tPHL
On
1.5 V
1.5 V
tPLH
1.5 V
WAVEFORM 1 - PROPAGATION DELAYS
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
2.7 V
0V
VOH
VOL
OEn
On
On
PULSE
GENERATOR
1.5 V
tPZH tPHZ
1.5 V
tPZL tPLZ
1.5 V
WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
Figure 3. AC Waveforms
2.7 V
0V
VCC
VOH - 0.3 V
≈0V
≈ 3.0 V
VOL + 0.3 V
GND
VCC
DUT
RT
R1
CL RL
6V
OPEN
GND
Test
Switch
tPLH, tPHL
Open
tPZL, tPLZ
6V
Open Collector/Drain tPLH and tPHL
6V
tPZH, tPHZ
GND
CL = 50 pF or equivalent (Includes jig and probe capacitance)
RL = R1 = 500 W or equivalent
RT = ZOUT of pulse generator (typically 50 W)
Figure 4. Test Circuit
http://onsemi.com
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MC74LCX540.PDF ] | |
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