74V1T125 SINGLE BUS BUFFER (3-STATE) ■ ■ ■ ■ ■ ■ ■ HIGH SPEED: tPD = 3.5ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C COMPATIBLE WITH TTL OUTPUTS: VIH = 2V (MIN), VIL = 0.8V (MAX) POWER DOWN PROTECTION ON INPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8mA (MIN) at VCC = 4.5V BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 4.5V to 5.5V DESCRIPTION The 74V1T125 is an advanced high-speed 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 HIGH to place the output into the high impedance state. SOT23-5L SOT323-5L ORDER CODES PACKAGE T&R SOT23-5L SOT323-5L 74V1T125STR 74V1T125CTR 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. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/10 74V1T125 INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No SYMBOL 1 2 4 3 1G 1A 1Y GND VCC 5 NAME AND FUNCTION Output Enable Input Data Input Data Output Ground (0V) Positive Supply Voltage TRUTH TABLE A G Y X L H H L L Z L H X : Don’t Care Z : High Impedance ABSOLUTE MAXIMUM RATINGS Symbol V CC 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 -0.5 to VCC + 0.5 V IIK DC Input Diode Current - 20 mA IOK DC Output Diode Current ± 20 mA IO DC Output Current ICC or IGND DC VCC or Ground Current Tstg Storage Temperature TL Lead Temperature (10 sec) ± 25 mA ± 50 mA -65 to +150 °C 300 °C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied RECOMMENDED OPERATING CONDITIONS Symbol V CC Parameter Supply Voltage Unit 4.5 to 5.5 V VI Input Voltage 0 to 5.5 V VO Output Voltage 0 to VCC V Top Operating Temperature -55 to 125 °C 0 to 20 ns/V dt/dv Input Rise and Fall Time (note 1) (VCC = 5.0 ± 0.5V) 1) VIN from 0.8V to 2V 2/10 Value 74V1T125 DC SPECIFICATIONS Test Condition Symbol Parameter 4.5 to 5.5 4.5 to 5.5 VOL Low Level Output Voltage 4.5 I OZ High Impedance Output Leakage Current Input Leakage Current Quiescent Supply Current Additional Worst Case Supply Current V IL VOH II ICC ICC TA = 25°C VCC (V) High Level Input Voltage Low Level Input Voltage High Level Output Voltage VIH Value Min. Typ. Max. 2 -40 to 85°C -55 to 125°C Min. Min. 2 0.8 4.5 IO=-50 µA 4.4 4.5 IO=-8 mA 3.94 4.5 IO=50 µA Max. 4.5 4.4 V 0.8 4.4 3.8 0.0 Max. 2 0.8 Unit V V 3.7 0.1 0.1 0.1 V IO=8 mA 0.36 0.44 0.55 5.5 VI = VIH or VIL VO = VCC or GND ±0.25 ± 2.5 ± 5.0 µA 0 to 5.5 VI = 5.5V or GND ± 0.1 ± 1.0 ± 1.0 µA 5.5 VI = VCC or GND 1 10 20 µA One Input at 3.4V, other input at VCC or GND 1.35 1.5 1.5 mA 5.5 AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns) Test Condition Symbol Parameter VCC (V) CL (pF) Value TA = 25°C Min. -40 to 85°C -55 to 125°C Typ. Max. Min. Max. Min. Max. tPLH tPHL Propagation Delay Time 5.0 (*) 15 3.5 6.0 1.0 7.0 1.0 8.0 (*) 50 3.8 6.5 1.0 7.5 1.0 8.5 tPLZ tPHZ Output Disable Time 5.0 (*) 15 3.9 5.0 1.0 6.0 1.0 7.0 (*) 50 4.3 7.0 1.0 8.0 1.0 9.0 tPZL tPZH Output Enable Time 5.0 (*) 15 4.3 7.0 1.0 8.0 1.0 9.0 (*) 50 4.7 7.5 1.0 8.5 1.0 9.5 5.0 5.0 5.0 Unit ns ns ns (*) Voltage range is 5.0V ± 0.5V 3/10 74V1T125 CAPACITIVE CHARACTERISTICS Test Condition Symbol Value TA = 25°C Parameter Min. CIN Input Capacitance C OUT Output Capacitance Power Dissipation Capacitance (note 1) C PD Typ. Max. 4 10 -40 to 85°C -55 to 125°C Min. Min. Max. Unit Max. 10 10 pF 5 pF 14 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 TEST CIRCUIT TEST tPLH, tPHL SWITCH Open tPZL, tPLZ VCC tPZH, tPHZ GND C L =15/50pF or equivalent (includes jig and probe capacitance) R1 = 1KΩ or equivalent R T = ZOUT of pulse generator (typically 50Ω) 4/10 74V1T125 WAVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle) WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle) 5/10 74V1T125 SOT23-5L MECHANICAL DATA mm. mils DIM. MIN. MAX. MIN. TYP. MAX. A 0.90 1.45 35.4 57.1 A1 0.00 0.15 0.0 5.9 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 2.60 3.00 102.3 118.1 E1 1.50 1.75 59.0 68.8 e 0.95 37.4 e1 1.9 74.8 L 6/10 TYP 0.35 0.55 13.7 21.6 74V1T125 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 74V1T125 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 74V1T125 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 3.98 4 4.2 0.156 0.157 0.165 P 3.98 4 4.2 0.156 0.157 0.165 9/10 74V1T125 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 infringe ment of patents or other righ ts 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 pub lication are subject to change without notice. Thi s pub lication supersedes and replaces all information previously supplied. STMicroelectronics prod ucts are not authori zed for use as critical components in life suppo rt devices or systems without express written approval of STMicroelectronics. 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