74LX1G70 SINGLE BUFFER ■ ■ ■ ■ ■ ■ ■ ■ 5V TOLERANT INPUTS HIGH SPEED: tPD = 4.2ns (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 74LX1G70 is an advanced high-speed CMOS SINGLE BUFFER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for 1.65 to 5.5 VCC operations and low power and low noise applications. The internal circuit is composed of 3 stages including buffer SOT23-5L SOT323-5L ORDER CODES PACKAGE T&R SOT23-5L SOT323-5L 74LX1G70STR 74LX1G70CTR output, which provide high noise immunity and stable output. Power down protection is provided on input and output and 0 to 7V can be accepted on inputs with no regard to the supply voltage. It can be interfaced to 5V signal environment for inputs in mixed 3.3/5V system. All inputs and outputs are equipped with protection circuits against static discharge. PIN CONNECTION AND IEC LOGIC SYMBOLS April 2004 1/10 74LX1G70 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN N° SYMBOL 1 2 4 3 NC 1A 1Y GND VCC 5 TRUTH TABLE NAME AND FUNCTION Not Connected Data Input Data Output Ground (0V) A Y L H L H Positive Supply Voltage ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter 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) -0.5 to +7.0 V VO DC Output Voltage (High or Low State) (note 1) IIK DC Input Diode Current IOK IO -0.5 to VCC + 0.5 V - 50 mA DC Output Diode Current (note 2) - 50 mA DC Output Current ± 50 mA ICC or IGND DC VCC or Ground Current per Supply Pin Tstg Storage Temperature TL Lead Temperature (10 sec) ± 50 mA -65 to +150 °C 300 °C Absolute Maximum Rating are those value beyond which damage to the device may occur. Functional operation under these condition is not implied 1) IO absolute maximum rating must be observed 2) VO < GND, VO > VCC 2/10 74LX1G70 RECOMMENDED OPERATING CONDITIONS Symbol VCC Parameter Value Supply Voltage (note 1) 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) V mA VI Input Voltage VO VO IOH, IOL High or Low Level Output Current (VCC = 4.5 to 5.5V) 0 to VCC ± 32 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) ± 16 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 DC SPECIFICATION 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 ICC Input Leakage Current Power Off Leakage Current Quiescent Supply Current Max. Min. Unit Max. V 0.7VCC 0.25VCC 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 2.3 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 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 µA 3.0 Ioff -55 to 125 °C High Level Input Voltage 3.0 II -40 to 85 °C VCC (V) 2.3 VOL Value V 3/10 74LX1G70 AC ELECTRICAL CHARACTERISTICS Test Condition Symbol tPLH tPHL Parameter Propagation Delay Time 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 CL (pF) RL (Ω) Value ts = tr (ns) 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 12.0 7.0 4.7 4.1 7.5 5.5 5.2 4.2 3.7 2 2 1 1 2 2 1 1 1 12.0 7.0 4.7 4.1 7.5 5.5 5.2 4.2 3.7 Unit ns CAPACITANCE CHARACTERISTICS Test Condition Symbol Parameter CIN Input Capacitance CPD Power Dissipation Capacitance (note 1) TA = 25 °C VCC (V) Min. 0 1.8 2.5 3.3 Value fIN = 10MHz Typ. Unit Max. 4 pF 16 18 20 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 current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC 4/10 74LX1G70 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 2.7 to 5.5V CL 15pF/30pF 15pF/30pF 15pF/50pF RL 1MΩ/1000Ω 500Ω 500Ω VIH VCC VCC VCC VM VCC/2 VCC/2 VCC/2 tr = tr <2.0ns <2.0ns <2.5ns WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle) 5/10 74LX1G70 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 6/10 74LX1G70 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 7/10 74LX1G70 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 8/10 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 74LX1G70 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 9/10 74LX1G70 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. 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