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Fairchild Semiconductor Electronic Components Datasheet

74ABT241 Datasheet

Octal Buffer/Line Driver with 3-STATE Outputs

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January 1995
Revised November 1999
74ABT241
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The ABT241 is an octal buffer and line driver with 3-STATE
outputs designed to be employed as a memory and
address driver, clock driver, or bus-oriented transmitter/
receiver.
Features
s Non-inverting buffers
s Output sink capability of 64 mA, source capability of
32 mA
s Guaranteed latchup protection
s High impedance glitch free bus loading during entire
power up and power down cycle
s Nondestructive hot insertion capability
Ordering Code:
Order Number Package Number
Package Description
74ABT241CSC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
74ABT241CSJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ABT241CMSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ABT241CMTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Device 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
I0I7
O0O7
Output Enable Input (Active LOW)
Output Enable Input (Active HIGH)
Inputs
Outputs
Truth Table
OE1
I0–3
O0–3
OE2
I4–7
O4–7
HXZ LXZ
L HHHHH
L L LHL L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
© 1999 Fairchild Semiconductor Corporation DS011691
www.fairchildsemi.com


Fairchild Semiconductor Electronic Components Datasheet

74ABT241 Datasheet

Octal Buffer/Line Driver with 3-STATE Outputs

No Preview Available !

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 Any Output
in the Disabled or
Power-Off State
0.5V to 5.5V
in the HIGH State
Current Applied to Output
0.5V to VCC
in LOW State (Max)
DC Latchup Source Current
twice the rated IOL (mA)
(Over Comm Operating Range)
500 mA
Over Voltage Latchup (I/O)
10V
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
Minimum Input Edge Rate (V/t)
Data Input
Enable Input
40°C to +85°C
+4.5V to +5.5V
50 mV/ns
20 mV/ns
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
Min
Typ
Max
Units
VCC
Conditions
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
2.0
2.5
2.0
4.75
V Recognized HIGH Signal
0.8 V
Recognized LOW Signal
1.2 V Min IIN = −18 mA
V Min IOH = −3 mA
V Min IOH = −32 mA
0.55 V Min IOL = 64 mA
1 µA Max VIN = 2.7V (Note 4)
1 VIN = VCC
7 µA Max VIN = 7.0V
1 µA Max VIN = 0.5V (Note 4)
1 VIN = 0.0V
V 0.0 IID = 1.9 µA
All Other Pins Grounded
IOZH
IOZL
IOS
ICEX
IZZ
ICCH
ICCL
ICCZ
ICCT
ICCD
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
100
Additional ICC/Input
Outputs Enabled
Outputs 3-STATE
Outputs 3-STATE
Dynamic ICC
(Note 4)
No Load
Note 3: For 8 bits toggling, ICCD < 0.8 mA/MHz.
Note 4: Guaranteed, but not tested.
10
10
275
50
100
50
30
50
2.5
2.5
50
0.1
µA
µA
mA
µA
µA
µA
mA
µA
mA
mA
µA
mA/
MHz
0 5.5V
0 5.5V
Max
Max
0.0
Max
Max
VOUT = 2.7V; OEn = 2.0V
VOUT = 0.5V; OEn = 2.0V
VOUT = 0.0V
VOUT = VCC
VOUT = 5.5V; All Others GND
All Outputs HIGH
All Outputs LOW
Max OEn = VCC;
All Others at VCC or Ground
VI = VCC 2.1V
Max Enable Input VI = VCC 2.1V
Data Input VI = VCC 2.1V
All Others at VCC or Ground
Outputs Open
Max
OEn = GND, (Note 3)
One Bit Toggling, 50%
Duty Cycle
www.fairchildsemi.com
2


Part Number 74ABT241
Description Octal Buffer/Line Driver with 3-STATE Outputs
Maker Fairchild Semiconductor
Total Page 7 Pages
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