54FCT541 Octal Buffer/Line Driver with TRI-STATE ® Outputs General Description Features 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. n n n n Non-inverting buffers TTL input and output level compatible CMOS power consumption Output sink capability of 48 mA, source capability of 12 mA n Flow-through pinout for ease of PC board layout n Standard Microcircuit Drawing (SMD) 5962-8976601 Ordering Code Military Package Package Description Number 54FCT541DMQB J20A 54FCT541FMQB W20A 20-Lead Cerpack 54FCT541LMQB E20A 20-Lead Ceramic Leadless Chip Carrier, Type C Connection Diagram 20-Lead Ceramic Dual-In-Line Pin Names Pin Assignment DIP and Cerpack Description OE1, OE2 Output Enable Input (Active Low) I0–I7 Inputs O0–O7 Outputs Inputs DS100953-1 Outputs OE1 OE2 I FCT541 L L H H H X X Z X H X Z L L L L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Pin Assignment LCC DS100953-30 TRI-STATE ® is a registered trademark of FAirchild Semiconductor Corporation. © 1999 National Semiconductor Corporation DS100953 www.national.com 54FCT541 Octal Buffer/Line Driver with TRI-STATE Outputs October 1999 54FCT541 Absolute Maximum Ratings (Note 1) in the HIGH State Current Applied to Output in LOW State (Max) DC Latchup Source Current If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias Ceramic VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Any Output in the Disabled or Power-Off State −65˚C to +150˚C −55˚C to +125˚C −0.5V to VCC twice the rated IOL (mA) −500 mA Recommended Operating Conditions −55˚C to +175˚C Free Air Ambient Temperature Military Supply Voltage Military Minimum Input Edge Rate Data Input Enable Input −0.5V to +7.0V −0.5V to +7.0V −30 mA to +5.0 mA −0.5V to 5.5V −55˚C to +125˚C +4.5V to +5.5V (∆V/∆t) 50 mV/ns 20 mV/ns DC Electrical Characteristics Symbol Parameter FCT541 Min 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 Typ Units VCC Conditions Max 2.0 V 0.8 V −1.2 V Recognized HIGH Signal Min 54FCT 4.3 V Min 54FCT 2.4 V Min V Min 54FCT 0.2 54FCT 0.55 V Min 5 µA Max Recognized LOW Signal IIN = −18 mA IOH = −300 µA IOH = −12 mA IOL = 300 µA IOL = 48 mA VIN = VCC VIN = 0.0V VOUT = 5.5V; OEn = 2.0V VOUT = 0.0V; OEn = 2.0V VOUT = 0.0V IIL Input LOW Current −5 µA Max IOZH Output Leakage Current 10 µA Max IOZL Output Leakage Current −10 µA Max IOS Output Short-Circuit Current -60 mA Max ICCQ Quiescent Power Supply Current 1.5 mA Max ∆ICC Quiescent Power Supply Current 2.0 mA Max ICCD Dynamic ICC 0.4 mA/ MHz Max VCC = 5.5V, Outputs Open, One Bit Toggling, 50% Duty Cycle, OEn = GND ICC Total Power Supply Current 6.0 mA Max VCC = 5.5V, Outputs Open, fI = 10MHz, OEn = GND, One Bit Toggling, 50% Duty Cycle, OEn = GND VIN < 0.2V or VIN 5.3V, VCC = 5.5V VI = VCC − 2.1V 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 2 Symbol 54FCT TA = −55˚C to +125˚C VCC = 4.5V–5.5V Parameter Fig. Units No. ns Figure 4 ns Figure 5 ns Figure 5 CL = 50 pF Min Max 2.0 9.0 tPLH Propagation Delay tPHL Data to Outputs 2.0 9.0 tPZH Output Enable Time 2.0 12.5 2.0 12.5 2.0 12.5 2.0 12.5 tPZL tPHZ Output Disable Time tPLZ Capacitance Symbol Parameter Max Units Conditions TA = 25˚C VCC = 0.0V VCC = 5.0V CIN Input Capacitance 10.0 pF COUT (Note 3) Output Capacitance 12.0 pF Note 3: COUT is measured at frequency of f = 1 MHz, per MIL-STD-883B, Method 3012. 3 www.national.com 54FCT541 AC Electrical Characteristics 54FCT541 AC Loading DS100953-3 DS100953-4 FIGURE 2. Test Input Signal Levels *Includes jig and probe capacitance FIGURE 1. Standard AC Test Load Amplitude Rep. Rate tw tr tf 3.0V 1 MHz 500 ns 2.5 ns 2.5 ns FIGURE 3. Test Input Signal Requirements AC Waveforms DS100953-5 DS100953-7 FIGURE 4. Propagation Delay Waveforms for Inverting and Non-Inverting Functions www.national.com FIGURE 5. TRI-STATE Output HIGH and LOW Enable and Disable Time 4 54FCT541 Physical Dimensions inches (millimeters) unless otherwise noted 20-Terminal Ceramic Chip Carrier NS Package Number E20A 20-Lead Ceramic Dual-In-Line Package NS Package Number J20A 5 www.national.com 54FCT541 Octal Buffer/Line Driver with TRI-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Ceramic Flatpack NS Package Number W20A LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. 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