74ABT162244 PDF даташит
Спецификация 74ABT162244 изготовлена «Fairchild Semiconductor» и имеет функцию, называемую «16-Bit Buffer/Line Driver with 25 Series Resistors in the Outputs». |
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Детали детали
Номер произв | 74ABT162244 |
Описание | 16-Bit Buffer/Line Driver with 25 Series Resistors in the Outputs |
Производители | Fairchild Semiconductor |
логотип |
7 Pages
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April 1992
Revised November 1999
74ABT162244
16-Bit Buffer/Line Driver with
25Ω Series Resistors in the Outputs
General Description
The ABT162244 contains sixteen non-inverting buffers with
3-STATE outputs designed to be employed as a memory
and address driver, clock driver, or bus oriented transmit-
ter/receiver. The device is nibble controlled. Individual 3-
STATE control inputs can be shorted together for 8-bit or
16-bit operation.
The 25Ω series resistors in the outputs reduce ringing and
eliminate the need for external resistors.
Features
s Separate control logic for each nibble
s 16-bit version of the ABT2244
s Guaranteed latchup protection
s High impedance glitch free bus loading during entire
power up and power down cycle
s Non-destructive hot insertion capability
Ordering Code:
Order Number Package Number
Package Description
74ABT162244CSSC
MS48A
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide
74ABT162244CMTD
MTD48
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
OEn
I0–I15
O0–O15
Description
Output Enable Input (Active LOW)
Inputs
Outputs
© 1999 Fairchild Semiconductor Corporation DS010987
www.fairchildsemi.com
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Truth Tables
Logic Diagram
OE1
L
L
H
Inputs
I0–I3
L
H
X
Outputs
O0–O3
L
H
Z
OE3
L
L
H
Inputs
I8–I11
L
H
X
Outputs
O8–O11
L
H
Z
OE2
L
L
H
Inputs
I4–I7
L
H
X
Outputs
O4–O7
L
H
Z
Inputs
Outputs
OE4
L
L
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
I12–I15
L
H
X
O12–O15
L
H
Z
Functional Description
The ABT162244 contains sixteen non-inverting buffers with
3-STATE outputs. The device is nibble (4 bits) controlled
with each nibble functioning identically, but independent of
the other. The control pins can be shorted together to
obtain full 16-bit operation.
Schematic of each Output
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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)
−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
0.8 V Min IOL = 12 mA
1 µA Max VIN = 2.7V (Note 3)
1 VIN = VCC
7 µA Max VIN = 7.0V
−1 µA Max VIN = 0.5V (Note 3)
−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 3)
No Load
Note 3: Guaranteed, but not tested.
10
−10
−275
50
100
2.0
60
2.0
3.0
3.0
50
0.1
µA
µA
mA
µA
µA
mA
mA
mA
mA
mA
µA
mA/
MHz
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 OEn = VCC
All Others at VCC or GND
VI = VCC − 2.1V
Max Enable Input VI = VCC − 2.1V
Data Input VI = VCC − 2.1V
All Others at VCC or GND
Outputs OPEN
Max
OEn = GND
One Bit Toggling, 50% Duty Cycle
3 www.fairchildsemi.com
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