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| 74ABT241 Octal Buffer/Line Driver with 3-STATE Outputs January 1995 Revised November 1999 74ABT241 Octal Buffer/Line Driver with 3-STATE Outputs General Description 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. Features s Non-inverting buffers s Output sink capability of 64 mA, source capability of 32 mA s Guaranteed latchup protection s High impedance glitch free bus loading during entire power up and power down cycle s Nondestructive hot insertion capability Ordering Code: Order Number 74ABT241CSC 74ABT241CSJ 74ABT241CMSA 74ABT241CMTC Package Number M20B M20D MSA20 MTC20 Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Device also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code. Connection Diagram Pin Descriptions Pin Names OE1 OE2 I0-I7 O0-O7 Description Output Enable Input (Active LOW) Output Enable Input (Active HIGH) Inputs Outputs Truth Table OE1 H L L I0-3 X H L O0-3 Z H L OE2 L H H I4-7 X H L O4-7 Z H L H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance (c) 1999 Fairchild Semiconductor Corporation DS011691 www.fairchildsemi.com 74ABT241 Absolute Maximum Ratings(Note 1) Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias 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) -500 mA 10V twice the rated IOL (mA) -0.5V to 5.5V -0.5V to VCC -65C to +150C -55C to +125C -55C to +150C -0.5V to +7.0V -0.5V to +7.0V -30 mA to +5.0 mA Recommended Operating Conditions Free Air Ambient Temperature Supply Voltage Minimum Input Edge Rate (V/t) Data Input Enable Input 50 mV/ns 20 mV/ns -40C to +85C +4.5V to +5.5V 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 4.75 2.5 2.0 0.55 1 1 7 -1 -1 Min 2.0 0.8 -1.2 Typ Max Units V V V V V V A A A V A A mA A A A mA A mA mA A mA/ 0.1 MHz Max Min Min Min Min Max Max Max 0.0 0 - 5.5V 0 - 5.5V Max Max 0.0 Max Max Max VCC Conditions Recognized HIGH Signal Recognized LOW Signal IIN = -18 mA IOH = -3 mA IOH = -32 mA IOL = 64 mA VIN = 2.7V (Note 4) VIN = VCC VIN = 7.0V VIN = 0.5V (Note 4) VIN = 0.0V IID = 1.9 A All Other Pins Grounded 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 -100 10 -10 -275 50 100 50 30 50 Outputs Enabled Outputs 3-STATE Outputs 3-STATE ICCD Dynamic ICC (Note 4) No Load 2.5 2.5 50 VOUT = 2.7V; OEn = 2.0V VOUT = 0.5V; OEn = 2.0V VOUT = 0.0V VOUT = VCC VOUT = 5.5V; All Others GND All Outputs HIGH All Outputs LOW OEn = VCC; All Others at VCC or Ground Additional ICC/Input VI = VCC - 2.1V Enable Input VI = VCC - 2.1V Data Input VI = VCC - 2.1V All Others at VCC or Ground 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.fairchildsemi.com 2 74ABT241 DC Electrical Characteristics (SOIC package) Conditions Symbol Parameter Min Typ Max Units VCC CL = 50 pF, RL = 500 VOLP VOLV VOHV VIHD VILD Quiet Output Maximum Dynamic VOL Quiet Output Minimum Dynamic VOL Minimum HIGH Level Dynamic Output Voltage Minimum HIGH Level Dynamic Input Voltage Maximum LOW Level Dynamic Input Voltage -1.3 2.7 2.0 0.5 -0.8 3.1 1.5 1.1 0.8 0.8 V V V V V 5.0 5.0 5.0 5.0 5.0 TA = 25C (Note 5) TA = 25C (Note 5) TA = 25C (Note 7) TA = 25C (Note 6) TA = 25C (Note 6) 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. Note 6: Max number of data inputs (n) switching. n - 1 inputs switching 0V to 3V. Input-under-test switching: 3V to threshold (VILD), 0V to threshold (VIHD). Guaranteed, but not tested. Note 7: Max number of outputs defined as (n). n - 1 data inputs are driven 0V to 3V. One output HIGH. Guaranteed, but not tested. AC Electrical Characteristics (SOIC and SSOP package) TA = +25C VCC = +5V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Min Propagation Delay Data to Outputs Output Enable Time Output Disable Time 1.0 1.0 1.1 1.3 1.6 1.0 CL = 50 pF Typ Max 4.6 4.6 6.8 6.8 6.8 5.9 1.0 1.0 1.1 1.3 1.6 1.0 TA = -40C to +85C VCC = 4.5V-5.5V CL = 50 pF Min Max 4.6 4.6 6.8 6.8 6.8 5.9 ns ns ns Units Capacitance Symbol CIN COUT (Note 8) Parameter Input Capacitance Output Capacitance Typ 5.0 9.0 Units pF pF VCC = 0V VCC = 5.0V Conditions TA = 25C Note 8: COUT is measured at frequency f = 1 MHz, per MIL-STD-883, Method 3012. 3 www.fairchildsemi.com 74ABT241 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body Package Number M20B www.fairchildsemi.com 4 74ABT241 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D 5 www.fairchildsemi.com 74ABT241 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide Package Number MSA20 www.fairchildsemi.com 6 74ABT241 Octal Buffer/Line Driver with 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'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 FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure 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. 7 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com www.fairchildsemi.com |
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