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54AC240 54ACT240 Octal Buffer/Line Driver with TRI-STATE Outputs
54AC240 54ACT240 Octal Buffer/Line Driver with TRI-STATE Outputs
'AC/'ACT240 octal buffer line driver designed employed memory address driver, clock driver oriented transmitter receiver which provides improved board density. Inverting TRI-STATE outputs drive lines buffer memory address registers Outputs source/sink 'ACT240 TTL-compatible inputs Standard Microcircuit Drawing (SMD) 'AC240: 5962-87550 'ACT240: 5962-87759
Features
reduced
Logic Symbol
IEEE/IEC
Connection Diagrams
Assignment Flatpak
DS100280-2
DS100280-1
Assignment
Names OE1, I0-I7 O0-O7 Inputs Outputs
Description TRI-STATE Output Enable Inputs
DS100280-3
TRI-STATE registered trademark National Semiconductor Corporation. FACT registered trademark Fairchild Semiconductor Corporation.
1998 National Semiconductor Corporation
DS100280
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Truth Tables
Inputs Inputs
HIGH Voltage Level Voltage Level Immaterial High Impedance
Outputs (Pins Outputs (Pins
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Absolute Maximum Ratings (Note
Military/Aerospace specified devices required, please contact National Semiconductor Sales Office/ Distributors availability specifications. Supply Voltage (VCC) Input Diode Current (IIK) -0.5V 0.5V Input Voltage (VI) Output Diode Current (IOK) -0.5V 0.5V Output Voltage (VO) Output Source Sink Current (IO) Ground Current Output (ICC IGND) Storage Temperature (TSTG) Junction Temperature (TJ) CDIP -0.5V +7.0V -0.5V 0.5V -0.5V 0.5V
Recommended Operating Conditions
Supply Voltage (VCC) 'ACT Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) 54AC/ACT Minimum Input Edge Rate (V/t) Devices from 3.3V, 4.5V, 5.5V Minimum Input Edge Rate (V/t) 'ACT Devices from 0.8V 2.0V 4.5V, 5.5V 2.0V 6.0V 4.5V 5.5V -55°C +125°C
mV/ns
-65°C +150°C
175°C
mV/ns
Note Absolute maximum ratings those values beyond which damage device occur. databook specifications should met, without exception, ensure that system design reliable over power supply, temperature, output/input loading variables. National does recommend operation FACT circuits outside databook specifications.
Characteristics Family Devices
Symbol Parameter Minimum High Level Input Voltage Maximum Level Input Voltage Minimum High Level Output Voltage 54AC -55°C +125°C Guaranteed Limits 3.15 3.85 1.35 1.65 (Note IOUT (Note VCC, IOUT VOUT 0.1V 0.1V VOUT 0.1V 0.1V Units Conditions
Maximum Level Output Voltage
Maximum Input Leakage Current
0.50 0.50 0.50
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Characteristics Family Devices
Symbol Parameter Maximum TRI-STATE Leakage Current IOLD IOHD Minimum Dynamic Output Current (Note Maximum Quiescent Supply Current
Note outputs loaded; thresholds input associated with output under test. Note Maximum test duration output loaded time.
(Continued)
54AC -55°C +125°C Guaranteed Limits
Units
Conditions
80.0
(OE) VIL, VCC, VCC, VOLD 1.65V VOHD 3.85V
Note 3.0V guaranteed less than equal respective limit 5.5V VCC. 54AC 25°C identical 74AC 25°C.
Characteristics 'ACT Family Devices
Symbol Parameter Minimum High Level Input Voltage Maximum Level Input Voltage Minimum High Level Output Voltage 54ACT -55°C +125°C Guaranteed Limits (Note IOUT (Note VCC, VIL, VCC, 2.1V VOLD 1.65V VOHD 3.85V VOUT 0.1V 0.1V VOUT 0.1V 0.1V IOUT Units Conditions
Maximum Level Output Voltage
3.70 4.70
ICCT IOLD IOHD Maximum Input Leakage Current Maximum TRI-STATE Leakage Current Maximum ICC/Input Minimum Dynamic Output Current (Note Maximum Quiescent Supply Current
Note outputs loaded; thresholds input associated with output under test. Note Maximum test duration output loaded time. Note 54ACT 25°C identical 74ACT 25°C.
0.50 0.50
80.0
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Electrical Characteristics
Symbol Parameter (Note tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data Output Propagation Delay Data Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time
Note Voltage Range 3.3V 0.3V Voltage Range 5.0V 0.5V
54AC -55°C +125°C 11.0 10.5 11.5 13.0 10.5 12.5 10.5 13.5 11.0 Units
Electrical Characteristics
Symbol Parameter (Note tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data Output Propagation Delay Data Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 10.0 11.5 11.0 11.5 54ACT -55°C +125°C Units
Note Voltage Range 5.0V 0.5V
Capacitance
Symbol Parameter Input Capacitance Power Dissipation Capacitance 45.0 Units Conditions OPEN 5.0V
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Physical Dimensions
inches (millimeters) unless otherwise noted
Terminal Ceramic Leadless Chip Carrier Package Number E20A
Lead Ceramic Dual-In-Line Package Package Number J20A
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54AC240 54ACT240 Octal Buffer/Line Driver with TRI-STATE Outputs
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
Lead Ceramic Flatpak Package Number W20A
LIFE SUPPORT POLICY NATIONAL'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT NATIONAL SEMICONDUCTOR CORPORATION. used herein: critical component component life support Life support devices systems devices sysdevice system whose failure perform reatems which, intended surgical implant into sonably expected cause failure life support body, support sustain life, whose faildevice system, affect safety effectiveness. perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user.
National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: 80-530 Email: europe.support@nsc.com Deutsch Tel: 80-530 English Tel: 80-532 Tel: 80-532 Italiano Tel: 80-534 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179
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National does assume responsibility circuitry described, circuit patent licenses implied National reserves right time without notice change said circuitry specifications.
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