General Description Features The ABT241 is an octal buffer and line driver with 3-STATE outputs designed to be employed as a memory and address driver, clock driver, or bus-oriented transmitter/receiver. n Non-inverting buffers n Output sink capability of 48 mA, source capability of 24 mA n Guaranteed latchup protection n High impedance glitch free bus loading during entire power up and power down cycle n Nondestructive hot insertion capability n Standard Microcircuit Drawing (SMD) 5962-9322701 Ordering Code Military Package Number Package Description 54ABT241J-QML J20A 20-Lead Ceramic Dual-In-Line 54ABT241W-QML W20A 20-Lead Cerpack 54ABT241E-QML E20A 20-Lead Ceramic Leadless Chip Carrier, Type C Connection Diagram Pin Names Pin Assignment for DIP and Cerpack Description OE1 Output Enable Input (Active Low) OE2 Output Enable Input (Active High) I0–I7 Inputs O0–O7 Outputs Truth Table OE1 I0–3 O0–3 OE2 I4–7 H X Z L X O4–7 Z L H H H H H L L L H L L 54ABT241 54ABT241 Octal Buffer/Line Driver with TRI-STATE ® Outputs 54ABT241 Octal Buffer/Line Driver with TRI-STATE Outputs July 1998 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance DS100215-1 Pin Assignment for LCC DS100215-4 TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 1998 National Semiconductor Corporation PrintDate=1998/07/13 PrintTime=19:04:09 43584 ds100215 Rev. No. 1 1 www.national.com DS100215 cmserv Proof 1 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 (Over Comm Operating Range) Over Voltage Latchup (I/O) −65˚C to +150˚C −55˚C to +125˚C −500 mA 10V Recommended Operating Conditions −55˚C to +175˚C −0.5V to +7.0V −0.5V to +7.0V −30 mA to +5.0 mA Free Air Ambient Temperature Military Supply Voltage Military Minimum Input Edge Rate Data Input Enable Input −0.5V to 5.5V −0.5V to VCC −55˚C to +125˚C +4.5V to +5.5V (∆V/∆t) 50 mV/ns 20 mV/ns 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. twice the rated IOL (mA) Note 2: Either voltage limit or current limit is sufficient to protect inputs. DC Electrical Characteristics Symbol Parameter 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 Min Typ Max Units 2.0 VCC V 0.8 V −1.2 V Min 54ABT 2.5 V Min 54ABT 2.0 V Min 0.55 V Min 5 µA Max 54ABT 5 IBVI Input HIGH Current Breakdown Test 7 µA Max IIL Input LOW Current −5 µA Max V 0.0 −5 VID Input Leakage Test 4.75 Conditions Recognized HIGH Signal Recognized LOW Signal IIN = −18 mA IOH = −3 mA IOH = −24 mA IOL = 48 mA VIN = 2.7V (Note 4) VIN = VCC VIN = 7.0V VIN = 0.5V (Note 4) VIN = 0.0V IID = 1.9 µA All Other Pins Grounded VOUT = 2.7V; OEn = 2.0V IOZH Output Leakage Current 50 µA 0 − 5.5V IOZL Output Leakage Current −50 µA 0 − 5.5V IOS Output Short-Circuit Current −275 mA Max ICEX Output High Leakage Current 50 µA Max IZZ Bus Drainage Test 100 µA 0.0 ICCH Power Supply Current 50 µA Max All Outputs HIGH ICCL Power Supply Current 30 mA Max ICCZ Power Supply Current 50 µA Max All Outputs LOW OEn = VCC; ICCT Additional ICC/Input Outputs Enabled 2.5 mA Max Outputs 3-STATE 2.5 mA All Others at VCC or Ground VI = VCC − 2.1V Enable Input VI = VCC − 2.1V Outputs 3-STATE 50 µA Data Input VI = VCC − 2.1V −100 VOUT = 0.5V; OEn = 2.0V VOUT = 0.0V VOUT = VCC VOUT = 5.5V; All Others GND All Others at VCC or Ground ICCD Dynamic ICC No Load mA/ (Note 4) 0.1 MHz Max Outputs Open OEn = GND, (Note 3) One Bit Toggling, 50% Duty Cycle Note 3: For 8 bits toggling, ICCD < 0.8 mA/MHz. Note 4: Guaranteed, but not tested. www.national.com 2 PrintDate=1998/07/13 PrintTime=19:04:09 43584 ds100215 Rev. No. 1 cmserv Proof 2 DC Electrical Characteristics Symbol Parameter Min Max Units VCC VOLP Quiet Output Maximum Dynamic VOL 0.67 V 5.0 VOLV Quiet Output Minimum Dynamic VOL -1.35 V 5.0 Conditions CL = 50 pF, RL = 500Ω TA = 25˚C (Note 5) TA = 25˚C (Note 5) Note 5: Max number of outputs defined as (n). n − 1 data inputs are driven 0V to 3V. One output at LOW. Guaranteed, but not tested. AC Electrical Characteristics Symbol TA = −55˚C to +125˚C VCC = 4.5V–5.5V Parameter Units Fig. No. CL = 50 pF Min Max tPLH Propagation Delay 0.8 5.3 tPHL Data to Outputs 0.8 5.0 tPZH Output Enable 1.0 7.0 tPZL Time 1.0 7.0 tPHZ Output Disable 0.8 7.9 tPLZ Time 0.8 6.2 ns ns ns Capacitance Symbol Parameter Typ Units CIN Input Capacitance 5.0 pF COUT (Note 6) Output Capacitance 9.0 pF Conditions TA = 25˚C VCC = 0V VCC = 5.0V Note 6: COUT is measured at frequency f = 1 MHz, per MIL-STD-883B, Method 3012. 3 PrintDate=1998/07/13 PrintTime=19:04:10 43584 ds100215 Rev. No. 1 www.national.com cmserv Proof 3 Physical Dimensions Book Extract End inches (millimeters) unless otherwise noted 20-Lead Ceramic Leadless Chip Carrier Package Number E20A www.national.com 4 PrintDate=1998/07/13 PrintTime=19:04:10 43584 ds100215 Rev. No. 1 cmserv Proof 4 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Ceramic Dual-In-Line Package Number J20A 20-Lead Ceramic Flatpack Package Number W20A 5 PrintDate=1998/07/13 PrintTime=19:04:10 43584 ds100215 Rev. No. 1 www.national.com cmserv Proof 5 54ABT241 Octal Buffer/Line Driver with TRI-STATE Outputs 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: [email protected] www.national.com 6 National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français 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: [email protected] National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 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. PrintDate=1998/07/13 PrintTime=19:04:10 43584 ds100215 Rev. No. 1 cmserv Proof 6