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74FR2240 PDF даташит

Спецификация 74FR2240 изготовлена ​​​​«Fairchild» и имеет функцию, называемую «Octal Buffer/Line Driver with 25 Series Resistors in the Outputs».

Детали детали

Номер произв 74FR2240
Описание Octal Buffer/Line Driver with 25 Series Resistors in the Outputs
Производители Fairchild
логотип Fairchild логотип 

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74FR2240 Даташит, Описание, Даташиты
January 1991
Revised August 1999
74FR2240
Octal Buffer/Line Driver
with 25Series Resistors in the Outputs
General Description
The 74FR2240 is an inverting octal buffer and line driver
designed to drive capacitive inputs of MOS memory
devices, address and clock lines or act as a low under-
shoot general purpose bus driver.
Features
s 3-STATE outputs drive bus lines or buffer memory
address registers
s Outputs sink 12 mA and source 15 mA
s 25series resistors in outputs eliminate the need for
external resistors
s Designed to drive the capacitive inputs of MOS devices
Ordering Code:
Order Number Package Number
Package Description
74FR2240SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74FR2240PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
Description
OE1, OE2
I0–I7
O0–O7
Output Enable Input (Active-LOW)
Inputs
Outputs
Truth Tables
Inputs
OE1
L
In
L
LH
HX
Inputs
OE2
L
In
L
LH
HX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Outputs
(Pins 3, 5, 7, 9)
H
L
Z
© 1999 Fairchild Semiconductor Corporation DS010904
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74FR2240 Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Storage Temperature
65°C to +150°C
Ambient Temperature under Bias
55°C to +125°C
Junction Temperature under Bias
55°C to +150°C
VCC Pin Potential to Ground Pin
Input Voltage (Note 2)
0.5V to +7.0V
0.5V to +7.0V
Input Current (Note 2)
30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
3-STATE Output
0.5V to VCC
0.5V to +5.5V
Current Applied to Output
in LOW State (Max)
Twice the Rated IOL (mA)
ESD Last Passing Voltage (Min)
4000V
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
Parameter
VIH Input HIGH Voltage
VIL Input LOW Voltage
VCD Input Clamp Diode Voltage
VOH Output HIGH Voltage
VOL Output LOW Voltage
IIH Input HIGH Current
IBVI Input HIGH Current
Breakdown Test
IIL Input LOW Current
VID Input Leakage Test
IOD Output Circuit Leakage Current
IOZH
IOZL
IOS
ICEX
IZZ
ICCH
ICCL
ICCZ
Output Leakage Current
Output Leakage Current
Output Short-Circuit Current
Output HIGH Leakage Current
Bus Drainage Test
Power Supply Current
Power Supply Current
Power Supply Current
Min
Typ
Max
Units
VCC
Conditions
2.0 V Recognized HIGH Signal
0.8 V
Recognized LOW Signal
1.2 V Min IIN = −18 mA
2.4 V Min IOH = −3 mA
2.0 V Min IOH = −15 mA
0.5 V Min IOL = 1 mA
0.75
V
Min IOL = 12 mA
5 µA Max VIN = 2.7V
7 µA Max VIN = 7.0V
4.75
150 µA Max VIN = 0.5V
V 0.0 IID = 1.9 µA
All Other Pins Grounded
3.75
µA
0.0 VIOD = 150 mV
All Other Pins Grounded
20 µA Max VOUT = 2.7V
20 µA Max VOUT = 0.5V
100
225 mA Max VOUT = 0.0V
50 µA Max VOUT = VCC
100 µA 0.0 VOUT = 5.25V
9 13 mA Max All Outputs HIGH
37 45 mA Max All Outputs LOW
30 38 mA Max Outputs 3-STATE
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74FR2240 Даташит, Описание, Даташиты
AC Electrical Characteristics
Symbol
Parameter
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation Delay
An to Bn or Bn to An
Output Enable Time
Output Disable Time
Min
1.7
1.7
2.6
2.6
2.1
2.1
Extended AC Electrical Characteristics
TA = +25°C
VCC = +5.0V
CL = 50 pF
Typ
3.3
2.9
4.0
6.3
3.9
3.4
Max
4.7
4.7
8.5
8.5
6.6
6.6
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min Max
1.7 4.7
1.7 4.7
2.6 8.5
2.6 8.5
2.1 6.6
2.1 6.6
Units
ns
ns
ns
TA = 0°C to +70°C
TA = 0°C to +70°C
VCC = +5.0V
VCC = +5.0V
Symbol
Parameter
CL = 50 pF
Eight Outputs Switching
CL = 250 pF
(Note 4)
Units
(Note 3)
Min Max Min Max
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tOSHL
(Note 5)
Propagation Delay
An to Bn or Bn to An
Output Enable Time
Output Disable Time
Pin-to-Pin Skew
for HL Transitions
1.7 6.4
1.7 6.4
2.6 8.9
2.6 8.9
2.1 6.8
2.1 6.8
1.0
4.2 8.6
4.2 8.6
ns
ns
ns
ns
tOSLH
(Note 5)
Pin-to-Pin Skew
for LH Transitions
1.1 ns
tOST
(Note 5)
Pin-to-Pin Skew
for HL/LH Transitions
3.0 ns
Note 3: This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase,
i.e., all LOW-to-HIGH, HIGH-to-LOW, 3-STATE-to-HIGH, etc.
Note 4: These specifications guaranteed but not tested. The limits represent propagation delays with 250 pF load capacitors in place of the 50 pF load
capacitors in the standard AC load. This specification pertains to single output switching only.
Note 5: Skew is defined as the absolute value of the difference between the actual propagation delays for any two outputs of the same device. The specifi-
cation applies to any outputs switching HIGH-to-LOW, (tOSHL), LOW-to-HIGH, (tOSLH), or HIGH-to-LOW and/or LOW-to-HIGH, (tOST). Specifications guaran-
teed with all outputs switching in phase.
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