October 1999
54FCT541
Octal Buffer/Line Driver with TRI-STATE® Outputs
General Description
The 'FCT541 is an octal buffer and line driver with TRI-STATE outputs designed to be employed as a memory and address driver, clock driver, or bus-oriented transmitter/ receiver. The 'FCT541 is similar to the 'FCT244 with broadside pinout.
Features
nNon-inverting buffers
nTTL input and output level compatible
nCMOS power consumption
nOutput sink capability of 48 mA, source capability of 12 mA
nFlow-through pinout for ease of PC board layout
nStandard Microcircuit Drawing (SMD) 5962-8976601
Ordering Code
Military |
Package |
Package Description |
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Number |
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54FCT541DMQB |
J20A |
20-Lead Ceramic Dual-In-Line |
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54FCT541FMQB |
W20A |
20-Lead Cerpack |
54FCT541LMQB |
E20A |
20-Lead Ceramic Leadless Chip Carrier, Type C |
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Connection Diagram |
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Pin Names |
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Description |
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2 |
Output Enable Input (Active Low) |
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Pin Assignment |
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OE |
1, |
OE |
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I0±I7 |
Inputs |
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DIP and Cerpack |
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O0±O7 |
Outputs |
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Inputs |
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Outputs |
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1 |
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2 |
I |
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FCT541 |
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OE |
OE |
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L |
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L |
H |
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H |
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H |
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X |
X |
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Z |
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X |
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H |
X |
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Z |
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L |
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L |
L |
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L |
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H = HIGH Voltage Level |
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DS100953-1 |
L = LOW Voltage Level |
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X = Immaterial |
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Z = High Impedance |
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Pin Assignment |
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LCC |
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DS100953-30
TRI-STATE® is a registered trademark of FAirchild Semiconductor Corporation.
Outputs STATE-TRI with Driver Buffer/Line Octal 54FCT541
© 1999 National Semiconductor Corporation |
DS100953 |
www.national.com |
54FCT541
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Storage Temperature |
−65ÊC to +150ÊC |
Ambient Temperature under Bias |
−55ÊC to +125ÊC |
Junction Temperature under Bias |
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Ceramic |
−55ÊC to +175ÊC |
VCC Pin Potential to |
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Ground Pin |
−0.5V to +7.0V |
Input Voltage (Note 2) |
−0.5V to +7.0V |
Input Current (Note 2) |
−30 mA to +5.0 mA |
Voltage Applied to Any Output |
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in the Disabled or |
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Power-Off State |
−0.5V to 5.5V |
in the HIGH State |
−0.5V to V CC |
Current Applied to Output |
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in LOW State (Max) |
twice the rated IOL (mA) |
DC Latchup Source Current |
−500 mA |
Recommended Operating
Conditions
Free Air Ambient Temperature |
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Military |
−55ÊC to +125ÊC |
Supply Voltage |
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Military |
+4.5V to +5.5V |
Minimum Input Edge Rate |
( V/ t) |
Data Input |
50 mV/ns |
Enable Input |
20 mV/ns |
DC Electrical Characteristics
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Symbol |
Parameter |
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FCT541 |
Units |
VCC |
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Conditions |
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Min |
Typ Max |
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VIH |
Input HIGH Voltage |
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2.0 |
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V |
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Recognized HIGH Signal |
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VIL |
Input LOW Voltage |
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0.8 |
V |
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Recognized LOW Signal |
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VCD |
Input Clamp Diode Voltage |
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−1.2 |
V |
Min |
I IN = −18 mA |
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VOH |
Output HIGH Voltage |
54FCT |
4.3 |
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V |
Min |
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IOH = −300 µA |
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54FCT |
2.4 |
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V |
Min |
IOH = −12 mA |
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VOL |
Output LOW Voltage |
54FCT |
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0.2 |
V |
Min |
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IOL = 300 µA |
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54FCT |
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0.55 |
V |
Min |
IOL = 48 mA |
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IIH |
Input HIGH Current |
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5 |
µA |
Max |
VIN = VCC |
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IIL |
Input LOW Current |
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−5 |
µA |
Max |
V IN = 0.0V |
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IOZH |
Output Leakage Current |
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10 |
µA |
Max |
VOUT = 5.5V; |
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n = 2.0V |
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OE |
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IOZL |
Output Leakage Current |
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−10 |
µA |
Max |
V OUT = 0.0V; |
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n = 2.0V |
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OE |
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IOS |
Output Short-Circuit Current |
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-60 |
mA |
Max |
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VOUT = 0.0V |
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ICCQ |
Quiescent Power |
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1.5 |
mA |
Max |
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VIN < 0.2V or VIN 5.3V, VCC = |
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Supply Current |
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5.5V |
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ICC |
Quiescent Power |
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2.0 |
mA |
Max |
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VI = VCC − 2.1V |
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Supply Current |
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ICCD |
Dynamic ICC |
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0.4 |
mA/ |
Max |
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VCC = 5.5V, Outputs Open, |
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MHz |
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One Bit Toggling, 50% Duty |
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Cycle, |
OE |
n = GND |
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ICC |
Total Power Supply |
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6.0 |
mA |
Max |
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VCC = 5.5V, Outputs Open, fI |
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Current |
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= 10MHz, |
OE |
n = GND, One |
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Bit Toggling, 50% Duty Cycle, |
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n = GND |
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OE |
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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.
www.national.com |
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