74AC240SC PDF даташит
Спецификация 74AC240SC изготовлена «Fairchild Semiconductor» и имеет функцию, называемую «Octal Buffer/Line Driver with 3-STATE Outputs». |
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Детали детали
Номер произв | 74AC240SC |
Описание | Octal Buffer/Line Driver with 3-STATE Outputs |
Производители | Fairchild Semiconductor |
логотип |
8 Pages
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November 1988
Revised November 1999
74AC240 • 74ACT240
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The AC/ACT240 is an octal buffer and line driver designed
to be employed as a memory address driver, clock driver
and bus oriented transmitter or receiver which provides
improved PC board density.
Features
s ICC and IOZ reduced by 50%
s Inverting 3-STATE outputs drive bus lines or buffer
memory address registers
s Outputs source/sink 24 mA
s ACT240 has TTL-compatible inputs
Ordering Code:
Order Number Package Number
Package Description
74AC240SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74AC240SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC240MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide
74AC240PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
74ACT240SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
74ACT240SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT240MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide
74ACT240PC
N20A
20-Lead Plastic Dwuwawl.-DIanta-LShineeet4PUa.ccomkage (PDIP), JEDEC MS-001, 0.300” Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
IEEE/IEC
Pin Descriptions
Pin Names
OE1, OE2
I0–I7
O0–O7
Description
3-STATE Output Enable Inputs
Inputs
Outputs
Truth Tables
Connection Diagram
Inputs
OE1
L
L
H
In
L
H
X
Inputs
OE2
L
L
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
In
L
H
X
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Outputs
(Pins 3, 5, 7, 9)
H
L
Z
FACT is a trademark of Fairchild Semiconductor Corporation.
© 1999 Fairchild Semiconductor Corporation DS009941
www.fairchildsemi.com
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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
±50 mA
±50 mA
−65°C to +150°C
140°C
Recommended Operating
Conditions
Supply Voltage (VCC)
AC
2.0V to 6.0V
ACT
4.5V to 5.5V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
Minimum Input Edge Rate (∆V/∆t)
0V to VCC
0V to VCC
−40°C to +85°C
AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate (∆V/∆t)
125 mV/ns
ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
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 for AC
Symbol
Parameter
VIH Minimum HIGH Level
Input Voltage
VIL Maximum LOW Level
Input Voltage
VOH Minimum HIGH Level
Output Voltage
VCC
TA = +25°C
TA = −40°C to +85°C
(V) Typ
Guaranteed Limits
3.0 1.5
2.1
2.1
4.5 2.25 3.15
3.15
5.5 2.75 3.85
3.85
3.0 1.5
0.9
0.9
4.5 2.25 1.35
1.35
5.5 2.75 1.65
1.65
3.0 2.99
2.9
2.9
4.5 4.49
4.4
4.4
5.5 5.49
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
Leakage Current
3.0
4.5
5.5
5.5
5.5
0.36
0.36
0.36
± 0.1
±0.25
0.44
0.44
0.44
± 1.0
±2.5
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 µA
VIN = VIL or VIH
IOH = −12 mA
V IOH = −24 mA
IOH = −24 mA (Note 2)
V IOUT = 50 µA
VIN = VIL or VIH
IOL = 12 mA
V IOL = 24 mA
IOL = 24 mA (Note 2)
µA VI = VCC, GND
VI (OE) = VIL, VIH
µA VI = VCC, GND
VO = VCC, GND
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
µA VIN = VCC or GND
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DC Electrical Characteristics for ACT
Symbol
Parameter
VIH Minimum HIGH Level
Input Voltage
VIL Maximum LOW Level
Input Voltage
VOH Minimum HIGH Level
Output Voltage
VCC
TA = +25°C
TA = −40°C to +85°C
(V) Typ
Guaranteed Limits
4.5 1.5
2.0
2.0
5.5 1.5
2.0
2.0
4.5 1.5
0.8
0.8
5.5 1.5
0.8
0.8
4.5 4.49
4.4
4.4
5.5 5.49
5.4
5.4
VOL Maximum LOW Level
Output Voltage
4.5 3.86
5.5 4.86
4.5 0.001
0.1
5.5 0.001
0.1
3.76
4.76
0.1
0.1
4.5 0.36
5.5 0.36
IIN Maximum Input
Leakage Current
5.5
±0.1
IOZ Maximum 3-STATE
Leakage Current
5.5
±0.25
ICCT
IOLD
IOHD
ICC
Maximum
ICC/Input
Minimum Dynamic
Output Current (Note 6)
Maximum Quiescent
Supply Current
5.5 0.6
5.5
5.5
5.5
4.0
Note 5: All outputs loaded; thresholds on input associated with output under test.
Note 6: Maximum test duration 2.0 ms, one output loaded at a time.
0.44
0.44
±1.0
±2.5
1.5
75
−75
40.0
Units
Conditions
V VOUT = 0.1V
or VCC − 0.1V
V VOUT = 0.1V
or VCC − 0.1V
V IOUT = −50 µA
VIN = VIL or VIH
V IOH = −24 mA
IOH = −24 mA (Note 5)
V IOUT = 50 µA
VIN = VIL or VIH
V IOL = 24 mA
IOL = 24 mA (Note 5)
µA VI = VCC, GND
µA VI = VIL, VIH
VO = VCC, GND
mA VI = VCC − 2.1V
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
µA VIN = VCC
or GND
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Номер в каталоге | Описание | Производители |
74AC240SC | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
74AC240SJ | Octal Buffer/Line Driver with 3-STATE Outputs | Fairchild Semiconductor |
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