74LX1G126 SINGLE BUS BUFFER (3-STATE) ■ ■ ■ ■ ■ ■ ■ ■ 5V TOLERANT INPUTS HIGH SPEED: tPD = 4.5ns (MAX.) at VCC = 3V LOW POWER DISSIPATION: ICC = 1µA (MAX.) at TA = 25°C POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) at VCC = 3V BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 1.65V to 5.5V (1.2V Data Retention) IMPROVED LATCH-UP IMMUNITY DESCRIPTION The 74LX1G126 is a low voltage CMOS SINGLE BUS BUFFER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. 3-STATE control input G has to be set LOW to place the output into the high impedance state. SOT23-5L SOT323-5L ORDER CODES PACKAGE T&R SOT23-5L SOT323-5L 74LX1G126STR 74LX1G126CTR Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. All inputs and outputs are equipped with protection circuits against static discharge. PIN CONNECTION AND IEC LOGIC SYMBOLS April 2004 1/12 74LX1G126 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN N° SYMBOL 1 2 4 3 1G 1A 1Y GND VCC 5 TRUTH TABLE NAME AND FUNCTION A G Y X L H L H H Z L H Output Enable Input Data Input Data Output Ground (0V) X : Don’t Care Positive Supply Voltage Z : High Impedance ABSOLUTE MAXIMUM RATINGS Symbol Value Unit Supply Voltage -0.5 to +7.0 V VI DC Input Voltage -0.5 to +7.0 V VO DC Output Voltage (VCC = 0V) VO DC Output Voltage (High or Low State) (note 1) IIK VCC Parameter -0.5 to +7.0 V -0.5 to VCC + 0.5 V DC Input Diode Current - 50 mA IOK DC Output Diode Current (note 2) - 50 mA IO DC Output Current ± 50 mA ± 50 mA -65 to +150 °C 300 °C ICC or IGND DC VCC or Ground Current per Supply Pin Storage Temperature Tstg TL Lead Temperature (10 sec) Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied 1) IO absolute maximum rating must be observed 2) VO < GND, VO > VCC 2/12 74LX1G126 RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage (note 1) Value Unit 1.65 to 5.5 V 0 to 5.5 V Output Voltage (VCC = 0V) 0 to 5.5 V Output Voltage (High or Low State) 0 to VCC V VI Input Voltage VO VO IOH, IOL High or Low Level Output Current (VCC = 4.5 to 5.5V) ± 32 mA IOH, IOL High or Low Level Output Current (VCC = 3.0 to 3.6V) ± 24 mA IOH, IOL High or Low Level Output Current (VCC = 2.7 to 3.0V) ± 12 mA IOH, IOL High or Low Level Output Current (VCC = 2.3 to 2.7V) ±8 mA IOH, IOL High or Low Level Output Current (VCC = 1.65 to 2.3V) Top dt/dv Operating Temperature Input Rise and Fall Time (note 2) ±4 mA -55 to 125 °C 0 to 10 ns/V 1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2V at VCC = 3.0V 3/12 74LX1G126 DC SPECIFICATIONS Test Condition Symbol VIH VIL VOH Parameter Min. 1.65 to 1.95 0.75VCC 0.75VCC 2.3 to 2.7 0.7VCC 0.7VCC 3.0 to 5.5 0.7VCC Low Level Input Voltage 1.65 to 1.95 High Level Output Voltage Low Level Output Voltage Ioff ICC 4/12 Min. Unit Max. V 0.7VCC 0.25VCC 2.3 to 2.7 0.3VCC 0.3VCC 3.0 to 5.5 0.3VCC 0.3VCC 1.65 to 4.5 IO=-100 µA VCC-0.1 VCC-0.1 1.65 IO=-4 mA 1.2 1.2 IO=-8 mA 1.9 1.9 IO=-16 mA 2.4 2.4 V V IO=-24 mA 2.2 2.2 4.5 IO=-32 mA 3.8 3.8 1.65 to 4.5 IO=100 µA 0.1 0.1 1.65 IO=4 mA 0.45 0.45 IO=8 mA 0.3 0.3 IO=16 mA 0.4 0.4 IO=24 mA 0.55 0.55 4.5 IO=32 mA 0.55 0.55 3.6 VI = 0 to 5.5V ± 10 ± 10 µA 1.65 to 5.5 VI = 0 to 5.5V ± 10 ± 10 µA 0 VI or VO = 5.5V 10 10 µA 1.65 to 5.5 VI = VCC or GND 10 10 3.6 VI or VO = 3.6 to 5.5V ± 10 ± 10 3.0 High Impedance Output Leakage Current Input Leakage Current Power Off Leakage Current Quiescent Supply Current Max. 0.25VCC 2.3 II -55 to 125 °C High Level Input Voltage 3.0 IOZ -40 to 85 °C VCC (V) 2.3 VOL Value V µA 74LX1G126 AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns) Test Condition Symbol tPLH tPHL tPLZ tPHZ tPZL tPZH Parameter VCC (V) 1.65 to 1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 4.5 to 5.5 Output Disable Time 1.65 to 1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 4.5 to 5.5 Output Enable Time 1.65 to 1.95 2.3 to 2.7 3.0 to 3.6 4.5 to 5.5 1.65 to 1.95 2.3 to 2.7 2.7 3.0 to 3.6 4.5 to 5.5 CL (pF) RL (Ω) Value ts = tr (ns) Propagation Delay Time 15 1MΩ 3.0 30 30 50 50 50 1000 500 500 500 500 2.0 2.0 2.5 2.5 2.5 15 1MΩ 3.0 30 30 50 50 50 1000 500 500 500 500 2.0 2.0 2.5 2.5 2.5 15 1MΩ 3.0 30 30 50 50 50 1000 500 500 500 500 2.0 2.0 2.5 2.5 2.5 -40 to 85 °C -55 to 125 °C Min. Max. Min. Max. 2 2 1 1 2 2 1 1 1 2 2 1 1 2 2 1 1 1 2 2 1 1 2 2 1 1 1 12.0 7.0 4.7 4.1 8.0 5.5 5.2 4.5 4.0 12.0 7.0 5.5 5.0 9.8 6.0 5.7 5.5 4.2 12.0 7.0 6.0 5.5 9.4 6.6 5.6 5.3 5.0 2 2 1 1 2 2 1 1 1 2 2 1 1 2 2 1 1 1 2 2 1 1 2 2 1 1 1 12.0 7.0 4.7 4.1 8.0 5.5 5.2 4.5 4.0 12.0 7.0 5.5 5.0 9.8 6.0 5.7 5.5 4.2 12.0 7.0 6.0 5.5 9.4 6.6 5.6 5.3 5.0 Unit ns ns ns CAPACITIVE CHARACTERISTICS Test Condition Symbol CIN COUT CPD Parameter Value TA = 25 °C VCC (V) Min. Typ. Input Capacitance VIN = 0 or VCC 4 Output Capacitance VIN = 0 or VCC 5 fIN = 10MHz 18 18 21 Power Dissipation Capacitance (note 1) 1.8 2.5 3.3 Unit Max. pF 10 pF pF 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC 5/12 74LX1G126 TEST CIRCUIT RT = ZOUT of pulse generator (typically 50Ω) TEST CIRCUIT AND WAVEFORM SYMBOL VALUE VCC Symbol 1.65 to 1.95V 2.3 to 2.7V CL 15pF/30pF 15pF/30pF 15pF/50pF RL=R1 1MΩ/1000Ω 1MΩ/500Ω 1MΩ/500Ω VIH VCC VCC VCC VM VCC/2 VCC/2 VCC/2 tr = tr <2.0ns <2.0ns <2.5ns WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle) 6/12 2.7 to 5.5V 74LX1G126 WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) 7/12 74LX1G126 SOT23-5L MECHANICAL DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 0.90 1.45 35.4 57.1 A1 0.00 0.10 0.0 3.9 A2 0.90 1.30 35.4 51.2 b 0.35 0.50 13.7 19.7 C 0.09 0.20 3.5 7.8 D 2.80 3.00 110.2 118.1 E 1.50 1.75 59.0 68.8 e 0.95 37.4 H 2.60 3.00 102.3 118.1 L 0.10 0.60 3.9 23.6 . 7049676C 8/12 74LX1G126 SOT323-5L MECHANICAL DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 0.80 1.10 31.5 43.3 A1 0.00 0.10 0.0 3.9 A2 0.80 1.00 31.5 39.4 b 0.15 0.30 5.9 11.8 C 0.10 0.18 3.9 7.1 D 1.80 2.20 70.9 86.6 E 1.80 2.40 70.9 94.5 E1 1.15 1.35 45.3 53.1 e 0 .65 25.6 e1 1.3 51.2 L 0.10 0.30 3.9 11.8 9/12 74LX1G126 Tape & Reel SOT23-xL MECHANICAL DATA mm. inch DIM. MIN. TYP A MIN. TYP. 180 13.0 13.2 MAX. 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 10/12 MAX. 0.504 0.512 14.4 0.519 0.567 Ao 3.13 3.23 3.33 0.123 0.127 0.131 Bo 3.07 3.17 3.27 0.120 0.124 0.128 Ko 1.27 1.37 1.47 0.050 0.054 0.0.58 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 3.9 4.0 4.1 0.153 0.157 0.161 74LX1G126 Tape & Reel SOT323-xL MECHANICAL DATA mm. inch DIM. MIN. TYP MAX. MIN. TYP. MAX. A 175 180 185 6.889 7.086 7.283 C 12.8 13 13.2 0.504 0.512 0.519 D 20.2 N 59.5 0.795 60 T 60.5 2.362 14.4 0.567 Ao 2.25 0.088 Bo 2.7 0.106 Ko 1.2 0.047 Po 3.9 4 4.1 0.153 0.157 0.161 P 3.8 4 4.2 0.149 0.157 0.165 11/12 74LX1G126 Information furnished is believed to be accurate and reliable. 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