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74AC540 반도체 회로 부품 판매점

Octal Buffer/Line Driver with 3-STATE Outputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74AC540 데이터시트, 핀배열, 회로
www.DataSheet4U.com
November 1988
Revised March 2005
74AC540
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The AC540 is an octal buffer/line drivers designed to be
employed as memory and address drivers, clock drivers
and bus oriented transmitter/receivers.
These devices are similar in function to the AC240 while
providing flow-through architecture (inputs on opposite side
from outputs). This pinout arrangement makes these
devices especially useful as output ports for microproces-
sors, allowing ease of layout and greater PC board density.
Features
s ICC and IOZ reduced by 50%
s 3-STATE inverting outputs
s Inputs and outputs opposite side of package, allowing
easier interface to microprocessors
s Output source/sink 24 mA
Ordering Code:
Order Number Package Number
Package Description
74AC540SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74AC540SJ
M20D
Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC540MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74AC540PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Logic Symbol
Connection Diagram
IEEE/IEC
Truth Table
Inputs
OE1
OE2
LL
HX
XH
LL
H HIGH Voltage Level
L LOW Voltage Level
FACT¥ is a trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation Ds009966
Outputs
I
HL
XZ
XZ
LH
X Immaterial
Z High Impedance
www.fairchildsemi.com


74AC540 데이터시트, 핀배열, 회로
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI 0.5V
VI VCC  0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO 0.5V
VO VCC  0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
Junction Temperature (TJ)
PDIP
0.5V to 7.0V
20 mA
20 mA
0.5V to VCC  0.5V
20 mA
20 mA
0.5V to VCC  0.5V
r50 mA
r50 mA
65qC to 150qC
140qC
Recommended Operating
Conditions
Supply Voltage (VCC)
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
Minimum Input Edge Rate ('V/'t)
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
2.0V to 6.0V
0V to VCC
0V to VCC
40qC to 85qC
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACT¥ circuits outside databook specifications.
DC Electrical Characteristics
Symbol
Parameter
VIH Minimum HIGH Level
Input Voltage
VIL Maximum LOW Level
Input Voltage
VOH Minimum HIGH Level
Output Voltage
VCC
(V)
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
TA
Typ
1.5
2.25
2.75
1.5
2.25
2.75
2.99
4.49
5.49
25qC
TA 40q C to 85qC
Guaranteed Limits
2.1 2.1
3.15
3.15
3.85
3.85
0.9 0.9
1.35
1.35
1.65
1.65
2.9 2.9
4.4 4.4
5.4 5.4
VOL Maximum LOW Level
Output Voltage
3.0 2.56
4.5 3.86
5.5 4.86
3.0 0.002
0.1
4.5 0.001
0.1
5.5 0.001
0.1
2.46
3.76
4.76
0.1
0.1
0.1
IIN
(Note 4)
IOZ
Maximum Input
Leakage Current
Maximum 3-STATE
Current
3.0
4.5
5.5
5.5
5.5
0.36
0.36
0.36
r0.1
r0.25
0.44
0.44
0.44
r1.0
r2.5
IOLD
IOHD
ICC
(Note 4)
Minimum Dynamic
Output Current (Note 3)
Maximum Quiescent
Supply Current
5.5
5.5
5.5
75
75
4.0 40.0
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
Units
Conditions
VOUT 0.1V
V or VCC  0.1V
VOUT 0.1V
V or VCC  0.1V
V IOUT 50 PA
VIN VIL or VIH
IOH 12 mA
V IOH 24 mA
IOH 24 mA (Note 2)
V IOUT 50 PA
VIN VIL or VIH
IOL 12 mA
V IOL 24 mA
IOL 24 mA (Note 2)
PA VI VCC, GND
VI (OE) VIL, VIH
PA VI VCC, GND
VO VCC, GND
mA VOLD 1.65V Max
mA VOHD 3.85V Min
PA VIN VCC
or GND
www.fairchildsemi.com
2




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74AC540 driver

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