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74ABT2244CSC 반도체 회로 부품 판매점

Octal Buffer/Line Driver with 25 Series Resistors in the Outputs



Fairchild Semiconductor 로고
Fairchild Semiconductor
74ABT2244CSC 데이터시트, 핀배열, 회로
May 1992
Revised November 1999
74ABT2244
Octal Buffer/Line Driver with
25Series Resistors in the Outputs
General Description
The ABT2244 is an octal buffer and line driver designed to
drive the capacitive inputs of MOS memory drivers,
address drivers, clock drivers, and bus-oriented transmit-
ters/receivers.
The 25series resistors in the outputs reduce ringing and
eliminate the need for external resistors.
Features
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
74ABT2244CSC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300Wide Body
74ABT2244CSJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ABT2244CMSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74ABT2244CMTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74ABT2244CPC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300Wide
Devices are also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
OE1, OE2
I0I7
O0O7
Description
Output Enable Input
(Active LOW)
Inputs
Outputs
Schematic of Each Output
Truth Table
OE1 I0–3 O0–3 OE2 I4–7 O4–7
HXZHXZ
L HH L HH
LLLLLL
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
© 1999 Fairchild Semiconductor Corporation DS010991
www.fairchildsemi.com


74ABT2244CSC 데이터시트, 핀배열, 회로
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)
(Across Comm Operating Range)
300 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.
DC Electrical Characteristics
Symbol
VIH
VIL
VCD
VOH
Parameter
Input HIGH Voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
VOL Output LOW Voltage
IIH Input HIGH Current
Min
2.0
2.5
2.0
IBVI Input HIGH Current Breakdown Test
IIL Input LOW Current
VID
IOZH
IOZL
IOS
ICEX
IZZ
ICCH
ICCL
ICCZ
Input Leakage Test
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
475
100
ICCT
Additional
ICC/Input
Outputs Enabled
Outputs 3-STATE
Outputs 3-STATE
Typ
ICCD
Dynamic ICC
(Note 4)
No Load
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
Note 3: For 8 bits toggling, ICCD < 0.8 mA/MHz.
Note 4: Guaranteed, but not tested.
Max
0.8
1.2
0.8
1
1
7
1
1
10
10
275
50
100
50
30
50
2.5
2.5
50
0.1
Units
V
V
V
V
V
V
µA
µA
µA
V
µA
µA
mA
µA
µA
µA
mA
µA
mA
mA
µA
mA/
MHz
VCC
Min
Min
Min
Min
Max
Max
Max
0.0
Conditions
Recognized HIGH Signal
Recognized LOW Signal
IIN = −18 mA
IOH = −3 mA
IOH = −32 mA
IOL = 15 mA
VIN = 2.7V (Note 4)
VIN = VCC
VIN = 7.0V
VIN = 0.5V (Note 4)
VIN = 0.0V
IID = 1.9 µA
All Other Pins Grounded
0 5.5V VOUT = 2.7V; OEn = 2.0V
0 5.5V
Max
Max
0.0
Max
VOUT = 0.5V; OEn = 2.0V
VOUT = 0.0V
VOUT = VCC
VOUT = 5.5V; All Others GND
All Outputs HIGH
Max All Outputs LOW
Max
Max
Max
OEn = VCC
All Others at VCC or GND
VI = VCC 2.1V
Enable Input VI = VCC 2.1V
Data Input VI = VCC 2.1V
All Others at VCCor GND
Outputs OPEN
OEn = GND (Note 3)
One Bit Toggling, 50% Duty Cycle
www.fairchildsemi.com
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74ABT2244CSC driver

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Octal Buffer/Line Driver with 25 Series Resistors in the Outputs - Fairchild Semiconductor



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