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| Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30W series termination resistors; 3-State 74LVT2241 FEATURES * Octal bus interface * 3-State buffers * Output capability: +12mA/-12mA * TTL input and output switching levels * Input and output interface capability to systems at 5V supply * Bus-hold data inputs eliminate the need for external pull-up * * Live insertion/extraction permitted * No bus current loading when output is tied to 5V bus * Latch-up protection exceeds 500mA per JEDEC Std 17 * ESD protection exceeds 2000V per MIL STD 883 Method 3015 * Outputs include series resistance of 30, making external termination resistors unnecessary. and 200V per Machine Model. resistors to hold unused inputs Power-up 3-State DESCRIPTION The 74LVT2241 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74LVT2241 device is an octal buffer that is ideal for driving bus lines. The device features two Output Enables (1OE, 2OE), each controlling four of the 3-State outputs. The 74LVT2241 is designed with 30 series resistance in both the High and Low states of the output. This design reduces the line noise in applications such as memory address drivers, clock drivers and bus receivers/transmitters. QUICK REFERENCE DATA SYMBOL tPLH tPHL CIN COUT ICCZ PARAMETER Propagation delay nAx to nYx Input capacitance Output capacitance Total supply current CONDITIONS Tamb = 25C; GND = 0V CL = 50pF; VCC = 3.3V VI = 0V or 3.0V Outputs disabled; VO = 0V or 3.0V Outputs disabled; VCC = 3.6V TYPICAL 3.0 3.3 4 8 0.12 UNIT ns pF pF mA ORDERING INFORMATION PACKAGES 20-Pin Plastic SOL 20-Pin Plastic SSOP Type II 20-Pin Plastic TSSOP Type I TEMPERATURE RANGE -40C to +85C -40C to +85C -40C to +85C OUTSIDE NORTH AMERICA 74LVT2241 D 74LVT2241 DB 74LVT2241 PW NORTH AMERICA 74LVT2241 D 74LVT2241 DB 7LVT2241PW DH DWG NUMBER SOT163-1 SOT339-1 SOT360-1 PIN CONFIGURATION PIN DESCRIPTION PIN NUMBER 2, 4, 6, 8 SYMBOL 1A0 - 1A3 2A0 - 2A3 1Y0 - 1Y3 2Y0 - 2Y3 1OE, 2OE GND VCC NAME AND FUNCTION Data inputs Data inputs Data outputs Data outputs Output enables Ground (0V) Positive supply voltage 1OE 1A0 2Y0 1A1 2Y1 1A2 2Y2 1A3 2Y3 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC 2OE 1Y0 2A0 1Y1 2A1 1Y2 2A2 1Y3 2A3 17, 15, 13, 11 18, 16, 14, 12 3, 5, 7, 9 1, 19 10 20 GND 10 SA00038 1996 May 29 1 853-1840 16867 Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30W series termination resistors; 3-State 74LVT2241 LOGIC SYMBOL (IEEE/IEC) 1 EN 2 4 6 8 18 16 LOGIC SYMBOL 2 4 6 8 14 12 1 17 1OE 2A0 2A1 2A2 2A3 2OE 2Y0 2Y1 2Y2 2Y3 1A0 1A1 1A2 1A3 1Y0 1Y1 1Y2 1Y3 18 16 14 12 3 5 7 9 19 EN 17 15 13 11 3 5 7 19 9 15 13 11 SA00039 SA00040 FUNCTION TABLE SCHEMATIC OF EACH OUTPUT VCC VCC INPUTS 1OE L L H 1An L H X 2OE H H L 2An L H X OUTPUTS 1Yn L H Z 2Yn L H Z 22 OUTPUT 20 H L X Z = High voltage level = Low voltage level = Don't care = High impedance "off " state SW00202 ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL VCC VI VOUT IOUT IIK IOK Tstg PARAMETER DC supply voltage DC input voltage3 Output in Off or High state Output in Low state DC output current Output in High state DC input diode current DC output diode current Storage temperature range VI < 0 VO < 0 -64 -50 -50 -65 to 150 mA mA C CONDITIONS RATING -0.5 to +4.6 -0.5 to +7.0 -0.5 to +7.0 128 mA UNIT V V V DC output voltage3 NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150C. 3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. 1996 May 29 2 Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30W series termination resistors; 3-State 74LVT2241 RECOMMENDED OPERATING CONDITIONS SYMBOL VCC VI VIH VIL IOH IOL t/v Tamb DC supply voltage Input voltage High-level input voltage Low-level Input voltage High-level output current Low-level output current Input transition rise or fall rate; outputs enabled Operating free-air temperature range -40 PARAMETER LIMITS MIN 2.7 0 2.0 0.8 -12 12 10 +85 MAX 3.6 5.5 UNIT V V V V mA mA ns/V C DC ELECTRICAL CHARACTERISTICS LIMITS SYMBOL VIK VOH VOL PARAMETER Input clamp voltage High-level output voltage Low-level output voltage TEST CONDITIONS VCC = 2.7V; II = -18mA VCC = 3V; IOH = -12mA VCC = 3V; IOL = 12mA VCC = 0 or 3.6V; VI = 5.5V II Input leakage current VCC = 3.6V; VI = VCC or GND VCC = 3.6V; VI = VCC VCC = 3.6V; VI = 0 IOFF IHOLD IEX IPU/PD IOZH IOZL ICCH ICCL ICCZ ICC Additional supply current per input pin2 Quiescent supply current Output off current Bus hold current A inputs Current into an output in the High state when VO > VCC Power up/down 3-State output current3 3-State output High current 3-State output Low current VCC = 0V; VI or VO = 0 to 4.5V VCC = 3.0V; VI = 0.8V VCC = 3.0V; VI = 2.0V VO = 5.5V; VCC = 3.0V VCC = 1.2V; VO = 0.5V to VCC; VI = GND or VCC; OE/OE = Don't care VCC = 3.6V; VO = 3.0V VCC = 3.6V; VO = 0.5V VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0 VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0 VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05 VCC = 3.0 to 3.6V; One input at VCC -0.6V; Other inputs at VCC or GND A inputs 75 -75 Control pins Data pins4 1 0.1 0.1 -1 1 150 -150 60 1 1 -1 0.12 3 0.12 0.1 125 100 5 -5 0.19 12 0.19 0.25 mA mA A A A A 2 Tamb = -40C to +85C MIN TYP1 0.9 2.2 0.8 10 1 1 -5 100 A A A MAX -1.2 V V V UNIT NOTES: 1. All typical values are at Tamb = 25C. 2. This is the increase in supply current for each input at VCC -0.6V. 3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V 10% a transition time of 100sec is permitted. This parameter is valid for Tamb = 25C only. 4. Unused pins at VCC or GND 5. ICCZ is measured with outputs pulled to VCC or GND. 1996 May 29 3 Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30W series termination resistors; 3-State 74LVT2241 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF; RL = 500;Tamb = -40C to +85C. LIMITS SYMBOL PARAMETER WAVEFORM Tamb = -40C to +85C VCC = +3.3V 0.3V MIN tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ Propagation delay nAx to nYx Output enable time to High and Low level, 1OE to 1Yn Output disable time from High and Low level, 1OE to 1Yn Output enable time to High and Low level, 2OE to 2Yn Output disable time from High and Low level, 2OE to 2Yn 1 1 1 1 1 1 1.6 1 1 1 1 TYP1 3.0 3.3 4.4 4.3 3.4 3.2 4.4 4.1 3.9 3.8 MAX 4.2 4.3 6.2 5.9 5.0 4.5 6.2 5.5 5.7 5.1 VCC = 2.7V MAX 5.0 4.7 8.5 6.8 5.2 4.5 7.9 6.2 6.4 5.8 ns UNIT 2 ns 2 ns 2 ns 2 ns NOTE: 1. All typical values are at VCC = 3.3V and Tamb = 25C. AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V OE INPUT VM An INPUT tPZL tPLH tPHL Yn OUTPUT VM Yn OUTPUT VM tPZH tPHZ VM tPLZ 3.5V VM OE INPUT VM VM VOL + 0.3V VOL VOH VOH - 0.3V SA00028 Yn OUTPUT Waveform 1. Waveforms Showing the Input (An) to Output (Yn) Propagation Delays VM 0V SA00041 Waveform 2. Waveforms Showing the 3-State Output Enable and Disable Times 1996 May 29 4 Philips Semiconductors Product specification 3.3V Octal buffer/line driver with 30W series termination resistors; 3-State 74LVT2241 TEST CIRCUIT AND WAVEFORMS VCC 6.0V Open VIN PULSE GENERATOR RT D.U.T. CL RL tTHL (tF) tTLH (tR) VOUT RL GND tW VM 10% 10% 0V tTLH (tR) tTHL (tF) 90% VM 10% tW 0V AMP (V) VM AMP (V) 90% NEGATIVE PULSE 90% Test Circuit for 3-State Outputs 90% POSITIVE PULSE 10% VM SWITCH POSITION TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH SWITCH Open 6V GND VM = 1.5V Input Pulse Definition DEFINITIONS RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators. INPUT PULSE REQUIREMENTS FAMILY Amplitude 74LVT 2.7V Rep. Rate v10MHz tW tR tF 500ns v2.5ns v2.5ns SV00092 1996 May 29 5 |
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