54ABT16244 Download

partno	mfr	description	Magnitude	download
54ABT16244	NSC	National Semiconductor [16-Bit Buffer/Line Driver with TRI-STATE Outputs]	198k

54ABT16244 16-Bit Buffer/Line Driver with TRI-STATE Outputs July 1998 54ABT16244 16-Bit Buffer/Line Driver with TRI-STATE ? Outputs General Description The 'ABT16244 contains sixteen non-inverting buffers with TRI-STATE outputs designed to be employed as a memory and address driver, clock driver, or bus oriented transmitter/ receiver. The device is nibble controlled. Individual TRI-STATE control inputs can be shorted together for 8-bit or 16-bit operation. n Guaranteed output skew n Guaranteed multiple output switching specifications n Output switching specified for both 50 pF and 250 pF loads n Guaranteed simultaneous switching noise level and dynamic threshold performance n Guaranteed latchup protection n High impedance glitch free bus loading during entire power up and power down cycle n Non-destructive hot insertion capability n Standard Microcircuit Drawing (SMD) 5962-9317402 Features n Separate control logic for each nibble n 16-bit version of the 'ABT244 n Outputs sink capability of 48 mA, source capability of 24 mA Ordering Code: Military 54ABT16244W-QML Package Number WA48A 48-Lead Cerpack Package Description Logic Symbol Connection Diagram Pin Assignment for Cerpack DS100223-1 Pin Description Pin Names OEn I0?I15 O0?O15 Inputs Outputs Description Output Enable Inputs (Active Low) DS100223-2 TRI-STATE ? is a registered trademark of National Semiconductor Corporation. ? 1998 National Semiconductor Corporation DS100223 www.national.com Functional Description The 'ABT16244 contains sixteen non-inverting buffers with TRI-STATE outputs. The device is nibble (4 bits) controlled with each nibble functioning identically, but independent of the other. The control pins can be shorted together to obtain full 16-bit operation. Truth Tables Inputs OE1 L L H Inputs OE3 L L H H = High Voltage Level L = Low Voltage Level X = Immaterial Z = High Impedance Inputs Outputs I0?I3 L H X O0?O3 L H Z Inputs Outputs I8?I11 L H X O8?O11 L H Z OE4 L L H I12?I15 L H X OE2 L L H I4?I7 L H X Outputs O4?O7 L H Z Outputs O12?O15 L H Z Logic Diagram DS100223-3 www.national.com 2 Absolute Maximum Ratings (Note 1) 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 in the HIGH State Current Applied to Output in LOW State (Max) DC Latchup Source Current -65?C to +150?C -55?C to +125?C -55?C to +175?C -0.5V to +7.0V -0.5V to +7.0V -30 mA to +5.0 mA Over Voltage Latchup (I/O) 10V Recommended Operating Conditions Free Air Ambient Temperature Military Supply Voltage Military Minimum Input Edge Rate Data Input Enable Input -55?C to +125?C +4.5V to +5.5V (V/t) 50 mV/ns 20 mV/ns -0.5V to 5.5V -0.5V to VCC twice the rated IOL (mA) -500 mA 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. DC Electrical Characteristics Symbol VIH VIL VCD VOH VOL IIH IBVI IIL VID IOZH IOZL IOS ICEX IZZ ICCH ICCL ICCZ ICCT Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage Output LOW Voltage Input HIGH Current Input HIGH Current Breakdown Test Input LOW Current Input Leakage Test Output Leakage Current Output Leakage Current Output Short-Circuit Current Output High Leakage Current Bus Drainage Test Power Supply Current Power Supply Current Power Supply Current Additional ICC/Input Outputs Enabled Outputs TRI-STATE Outputs TRI-STATE ICCD Dynamic ICC (Note 3) Note 3: Guaranteed but not tested. ABT16244 Min Typ Max 2.0 0.8 -1.2 54ABT 54ABT 54ABT 2.5 2.0 0.55 5 5 7 -5 -5 4.75 50 -50 -100 -275 50 100 2.0 60 2.0 2.5 2.5 50 Units V V V V V V ?A ?A ?A V ?A ?A mA ?A ?A mA mA mA mA mA ?A mA/ VCC Conditions Recognized HIGH Signal Min Min Min Min Max Max Max 0.0 0 - 5.5V 0 - 5.5V Max Max 0.0 Max Max Max Recognized LOW Signal IIN = -18 mA IOH = -3 mA IOH = -24 mA IOL = 48 mA VIN = 2.7V (Note 3) VIN = VCC VIN = 7.0V VIN = 0.5V (Note 3) VIN = 0.0V IID = 1.9 ?A All Other Pins Grounded VOUT = 2.7V; OEn = 2.0V VOUT = 0.5V; OEn = 2.0V VOUT = 0.0V VOUT = VCC VOUT = 5.5V All Other Pins GND All Outputs HIGH All Outputs LOW OEn = VCC All Others at VCC or GND VI = VCC - 2.1V Max Enable Input VI = VCC - 2.1V Data Input VI = VCC - 2.1V All Others at VCC or GND Outputs Open, OEn = GND No Load 0.1 MHz Max One Bit Toggling, 50% Duty Cycle 3 www.national.com DC Electrical Characteristics Symbol VOLP VOLV Parameter Quiet Output Maximum Dynamic VOL Quiet Output Minimum Dynamic VOL Min Max 1.1 -0.45 Units V V VCC 5.0 5.0 Conditions CL = 50 pF, RL = 500 TA = 25?C (Note 4) TA = 25?C(Note 4) Note 4: Max number of outputs defined as (n). n - 1 data inputs are driven 0V to 3V. One output at LOW. AC Electrical Characteristics Symbol Parameter 54ABT TA = -55?C to +125?C VCC = 4.5V?5.5V CL = 50 pF Min tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation Delay Data to Outputs Output Enable Time Output Disable Time 1.5 1.5 1.5 1.5 6.8 7.0 7.7 6.5 ns ns 0.5 0.5 Max 5.3 5.9 ns Units Capacitance Symbol CIN COUT (Note 5) Parameter Input Capacitance Output Capacitance Typ 5.0 9.0 Units pF pF Conditions TA = 25?C VCC = 5.0V VCC = 5.0V Note 5: COUT is measured at frequency f = 1 MHz; per MIL STD-883B, Method 3012. www.national.com 4 Capacitance (Continued) tPHL vs Temperature (TA) CL = 50 pF, 1 Output Switching tPLH vs Temperature (TA) CL = 50 pF, 1 Output Switching DS100223-12 DS100223-13 tPLH vs Load Capacitance 1 Output Switching, TA = 25?C tPHL vs Load Capacitance 1 Output Switching, TA = 25?C DS100223-14 DS100223-15 tPLH vs Load Capacitance 16 Outputs Switching, TA = 25?C tPHL vs Load Capacitance 16 Outputs Switching, TA = 25?C DS100223-16 DS100223-17 tPZL vs Temperature (TA) CL = 50 pF, 1 Output Switching tPLZ vs Temperature (TA) CL = 50 pF, 1 Output Switching DS100223-19 DS100223-18 Dashed lines represent design characteristics; for specified guarantees, refer to AC Characteristics Tables. 5 www.national.com Capacitance (Continued) tPHZ vs Temperature (TA) CL = 50 pF, 1 Output Switching tPZH vs Temperature (TA) CL = 50 pF, 1 Output Switching DS100223-20 DS100223-21 tPZH vs Temperature (TA) CL = 50 pF, 16 Outputs Switching tPHZ vs Temperature (TA) CL = 50 pF, 16 Outputs Switching DS100223-22 DS100223-23 tPZL vs Temperature (TA) CL = 50 pF, 16 Outputs Switching tPLZ vs Temperature (TA) CL = 50 pF, 16 Outputs Switching DS100223-24 DS100223-25 Dashed lines represent design characteristics; for specified guarantees, refer to AC Characteristics Tables. www.national.com 6 Capacitance (Continued) tPZH vs Load Capacitance 16 Outputs Switching, TA = 25?C tPZL vs Load Capacitance 16 Outputs Switching, TA = 25?C DS100223-26 DS100223-27 tPLH and tPHL vs Number Output Switching VCC = 5.0V, TA = 25?C, CL = 50 pF DS100223-28 ICC vs Frequency Average, TA = 25?C, VCC = 5.5V DS100223-29 Dashed lines represent design characteristics; for specified guarantees, refer to AC Characteristics Tables. 7 www.national.com AC Loading DS100223-7 DS100223-4 *Includes jig and probe capacitance FIGURE 5. TRI-STATE Output HIGH and LOW Enable and Disable Times FIGURE 1. Standard AC Test Load DS100223-8 FIGURE 2. Propagation Delay Waveforms for Inverting and Non-Inverting Functions DS100223-6 FIGURE 3. Test Input Pulse Requirements Amplitude 3.0V Rep Rate 1 MHz tW 500 ns tr 2.5 ns tf 2.5 ns FIGURE 4. Test Input Signal Requirements www.national.com 8 9 54ABT16244 16-Bit Buffer/Line Driver with TRI-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted 48-Lead Cerpack NS Package Number WA48A 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 OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or sysdevice or system whose failure to perform can be reatems which, (a) are intended for surgical implant into sonably expected to cause the failure of the life support the body, or (b) support or sustain life, and whose faildevice or system, or to affect its safety or effectiveness. ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Fran?ais Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 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 www.national.com National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. http://www.icinfo.net http://pdf.ecgoo.net

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