NSC 5962R9218601VSA, 5962R9218601VRA, 5962R9218601V2A, 5962-9218601MSA, 5962-9218601MRA Datasheet
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August 1998
54ACQ244 · 54ACTQ244
Quiet Series Octal Buffer/Line Driver with TRI-STATE®
Outputs
General Description
The 'ACQ/'ACTQ244 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. The ACQ/ACTQ utilizes NSC Quiet Series technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet Series™ features GTO™ output control and undershoot corrector in addition to a split ground bus for superior performance.
nGuaranteed simultaneous switching noise level and dynamic threshold performance
nImproved latch-up immunity
nTRI-STATE outputs drive bus lines or buffer memory address registers
nOutputs source/sink 24 mA
nFaster prop delays than the standard 'AC/'ACT244
n4 kV minimum ESD immunity
nStandard Microcircuit Drawing (SMD)
Ð'ACTQ244: 5962-92186
Ð'ACQ244: 5962-92176
Features
n ICC and IOZ reduced by 50%
Logic Symbol |
Connection Diagrams |
IEE/IEC |
Pin Assignment |
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for DIP and Flatpak |
DS100236-2
DS100236-1
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Pin Names |
Description |
Pin Assignment |
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for LCC |
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OE1, OE2 |
TRI-STATE Output Enable Inputs |
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I0±I 7 |
Inputs |
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O0±O 7 |
Outputs |
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DS100236-3
GTO™ is a trademark of National Semiconductor Corporation.
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
FACT Quiet Series™ is a trademark of Fairchild Semiconductor Corporation.
Outputs STATE-TRI with Driver Buffer/Line Octal Series Quiet 54ACTQ244 · 54ACQ244
© 1998 National Semiconductor Corporation |
DS100236 |
www.national.com |
Truth Tables
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Inputs |
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Outputs |
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OE |
1 |
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In |
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(Pins 12, 14, 16, 18) |
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L |
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L |
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L |
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L |
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H |
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H |
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H |
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X |
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Z |
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Inputs |
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Outputs |
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OE |
2 |
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In |
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(Pins 3, 5, 7, 9) |
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L |
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L |
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L |
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L |
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H |
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H |
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H |
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X |
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Z |
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H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
www.national.com |
2 |
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage (VCC) |
−0.5V to +7.0V |
DC Input Diode Current (IIK) |
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VI = −0.5V |
−20 mA |
VI = VCC + 0.5V |
+20 mA |
DC Input Voltage (VI) |
−0.5V to V CC + 0.5V |
DC Output Diode Current (IOK) |
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VO = −0.5V |
−20 mA |
VO = VCC + 0.5V |
+20 mA |
DC Output Voltage (VO) |
−0.5V to V CC + 0.5V |
DC Output Source |
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or Sink Current (IO) |
±50 mA |
DC VCC or Ground Current |
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per Output Pin (ICC or IGND) |
±50 mA |
Storage Temperature (TSTG) |
−65ÊC to +150ÊC |
DC Latch-Up Source or |
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Sink Current |
±300 mA |
Junction Temperature (TJ) |
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CDIP |
175ÊC |
Recommended Operating
Conditions
Supply Voltage (VCC) |
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'ACQ |
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2.0V to 6.0V |
'ACTQ |
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4.5V to 5.5V |
Input Voltage (VI) |
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0V to VCC |
Output Voltage (VO) |
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0V to VCC |
Operating Temperature (TA) |
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54ACQ/ACTQ |
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−55ÊC to +125ÊC |
Minimum Input Edge Rate |
V/ |
t |
'ACQ Devices |
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VIN from 30% to 70% of VCC |
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VCC @ 3.0V, 4.5V, 5.5V |
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125 mV/ns |
Minimum Input Edge Rate |
V/ |
t |
'ACTQ Devices |
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VIN from 0.8V to 2.0V |
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VCC @ 4.5V, 5.5V |
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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, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. National does not recommend operation of FACT® circuits outside databook specifications.
Note 2: All commercial packaging is not recommended for applications requiring greater than 2000 temperature cycles from −40ÊC to +125ÊC.
DC Electrical Characteristics for 'ACQ Family Devices
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54ACQ |
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Symbol |
Parameter |
VCC |
TA = −55ÊC to |
Units |
Conditions |
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+125ÊC |
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(V) |
Guaranteed Limits |
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VIH |
Minimum High Level |
3.0 |
2.1 |
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VOUT = 0.1V |
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Input Voltage |
4.5 |
3.15 |
V |
or VCC − 0.1V |
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5.5 |
3.85 |
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VIL |
Maximum Low Level |
3.0 |
0.9 |
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VOUT = 0.1V |
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Input Voltage |
4.5 |
1.35 |
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or VCC − 0.1V |
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5.5 |
1.65 |
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VOH |
Minimum High Level |
3.0 |
2.9 |
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IOUT = −50 µA |
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Output Voltage |
4.5 |
4.4 |
V |
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5.5 |
5.4 |
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(Note 3) |
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VIN = VIL or VIH |
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3.0 |
2.4 |
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IOH = −12 mA |
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4.5 |
3.7 |
V |
IOH = −24 mA |
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5.5 |
4.7 |
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IOH = −24 mA |
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VOL |
Maximum Low Level |
3.0 |
0.1 |
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IOUT = 50 µA |
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Output Voltage |
4.5 |
0.1 |
V |
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5.5 |
0.1 |
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(Note 3) |
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VIN = VIL or VIH |
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3.0 |
0.50 |
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IOL = 12 mA |
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4.5 |
0.50 |
V |
IOL = 24 mA |
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5.5 |
0.50 |
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IOL = 24 mA |
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IIN |
Maximum Input |
5.5 |
±1.0 |
µA |
VI = VCC, GND |
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Leakage Current |
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(Note 5) |
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3 |
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