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Part: 54AC240WG-QML
Category:
Logic
-> Military/Aerospace->FACT AC
Description: 54AC240 - Octal Buffer/line Driver With Tri-state Outputs, Package: Ceramic Soic, Pin Nb=20
Company: National Semiconductor Corporation
Datasheet: Download 54AC240WG-QML datasheet File size : 232 kB
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Datasheet text preview:
54AC240 · 54ACT240 Octal Buffer/Line Driver with TRI-STATE Outputs
August 1998
54AC240 · 54ACT240 Octal Buffer/Line Driver with TRI-STATE ® Outputs
General Description
The 'AC/'ACT240 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. n Inverting TRI-STATE outputs drive bus lines or buffer memory address registers n Outputs source/sink 24 mA n 'ACT240 has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) -- 'AC240: 5962-87550 -- 'ACT240: 5962-87759
Features
n ICC and IOZ reduced by 50%
Logic Symbol
IEEE/IEC
Connection Diagrams
Pin Assignment for DIP and Flatpak
DS100280-2
DS100280-1
Pin Assignment for LCC
Pin Names OE1, OE2 I0 I7 O0 O7 Inputs Outputs
Description TRI-STATE Output Enable Inputs
DS100280-3
TRI-STATE ® is a registered trademark of National Semiconductor Corporation. FACT ® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS100280
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Truth Tables
Inputs OE1 L L H Inputs OE2 L L H
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
Outputs In L H X (Pins 12, 14, 16, 18) H L Z Outputs In L H X (Pins 3, 5, 7, 9) H L Z
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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) DC Input Diode Current (IIK) VI = -0.5V VI = VCC + 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO = -0.5V VO = VCC + 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (TJ) CDIP -0.5V to +7.0V -20 mA +20 mA -0.5V to VCC + 0.5V -20 mA +20 mA -0.5V to VCC + 0.5V
Recommended Operating Conditions
Supply Voltage (VCC) 'AC 'ACT Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) 54AC/ACT Minimum Input Edge Rate (V/t) 'AC Devices VIN from 30% to 70% of VCC VCC @ 3.3V, 4.5V, 5.5V Minimum Input Edge Rate (V/t) 'ACT Devices VIN from 0.8V to 2.0V VCC @ 4.5V, 5.5V 2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC -55°C to +125°C
125 mV/ns
± 50 mA ± 50 mA -65°C to +150°C
175°C
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.
DC Characteristics for 'AC Family Devices
Symbol Parameter VCC (V) VIH Minimum High Level Input Voltage VIL Maximum Low Level Input Voltage VOH Minimum High Level Output Voltage 3.0 4.5 5.5 3.0 4.5 5.5 3.0 4.5 5.5 54AC TA = -55°C to +125°C Guaranteed Limits 2.1 3.15 3.85 0.9 1.35 1.65 2.9 4.4 5.4 (Note 2) VIN = VIL or VIH IOH = -12 mA IOH = -24 mA IOH = -24 mA IOUT = 50 µA V (Note 2) VIN = VIL or VIH IOL = 12 mA V µA IOL = 24 mA IOL = 24 mA VI = VCC, GND V IOUT = -50 µA V VOUT = 0.1V or VCC - 0.1V V VOUT = 0.1V or VCC - 0.1V Units Conditions
3.0 4.5 5.5 VOL Maximum Low Level Output Voltage 3.0 4.5 5.5
2.4 3.7 4.7 0.1 0.1 0.1 V
3.0 4.5 5.5 IIN Maximum Input Leakage Current 5.5
0.50 0.50 0.50
± 1.0
3
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DC Characteristics for 'AC Family Devices
Symbol Parameter VCC (V) IOZ Maximum TRI-STATE Leakage Current IOLD IOHD ICC Minimum Dynamic Output Current (Note 3) Maximum Quiescent Supply Current
Note 2: All outputs loaded; thresholds on input associated with output under test. Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
(Continued)
54AC TA = -55°C to +125°C Guaranteed Limits
Units
Conditions
5.5 5.5 5.5 5.5
± 5.0
50 -50 80.0
µA mA mA µA
VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND VOLD = 1.65V Max VOHD = 3.85V Min VIN = VCC or GND
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC. ICC for 54AC @ 25°C is identical to 74AC @ 25°C.
DC Characteristics for 'ACT Family Devices
Symbol Parameter VCC (V) VIH VIL VOH Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage 4.5 5.5 4.5 5.5 4.5 5.5 54ACT TA = -55°C to +125°C Guaranteed Limits 2.0 2.0 0.8 0.8 4.4 5.4 (Note 5) VIN = VIL or VIH IOH = -24 mA IOH = -24 mA IOUT = 50 µA (Note 5) VIN = VIL or VIH IOL = 24 mA IOL = 24 mA VI = VCC, GND VI = VIL, VIH VO = VCC, GND VI = VCC - 2.1V VOLD = 1.65V Max VOHD = 3.85V Min VIN = VCC or GND V V V VOUT = 0.1V or VCC - 0.1V VOUT = 0.1V or VCC - 0.1V IOUT = -50 µA Units Conditions
4.5 5.5 VOL Maximum Low Level Output Voltage 4.5 5.5
3.70 4.70 0.1 0.1
V V
4.5 5.5 IIN IOZ ICCT IOLD IOHD ICC Maximum Input Leakage Current Maximum TRI-STATE Leakage Current Maximum ICC/Input Minimum Dynamic Output Current (Note 6) Maximum Quiescent Supply Current
Note 5: All outputs loaded; thresholds on input associated with output under test. Note 6: Maximum test duration 2.0 ms, one output loaded at a time. Note 7: ICC for 54ACT @ 25°C is identical to 74ACT @ 25°C.
0.50 0.50
V µA µA mA mA mA µA
5.5 5.5 5.5 5.5 5.5 5.5
± 1.0 ± 5.0
1.6 50 -50 80.0
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AC Electrical Characteristics
VCC Symbol Parameter (V) (Note 8) Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Propagation Delay Data to Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V Voltage Range 5.0 is 5.0V ± 0.5V
54AC TA = -55°C to +125°C CL = 50 pF Max 11.0 8.5 10.5 8.0 11.5 9.0 13.0 10.5 12.5 10.5 13.5 11.0 ns ns ns ns ns ns 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Units
AC Electrical Characteristics
VCC Symbol Parameter (V) (Note 9) Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Output Propagation Delay Data to Output Output Enable Time Output Enable Time Output Disable Time Output Disable Time 5.0 5.0 5.0 5.0 1.0 1.0 1.0 1.0 10.0 11.5 11.0 11.5 ns ns ns ns 5.0 1.0 9.0 ns 5.0 1.0 54ACT TA = -55°C to +125°C CL = 50 pF Max 9.5 ns Units
Note 9: Voltage Range 5.0 is 5.0V ± 0.5V
Capacitance
Symbol CIN CPD Parameter Input Capacitance Power Dissipation Capacitance Typ 4.5 45.0 Units pF pF Conditions VCC = OPEN VCC = 5.0V
5
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