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74LX1G126
SINGLE BUS BUFFER (3-STATE)
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5V TOLERANT INPUTS HIGH SPEED: tPD = 4.5ns (MAX.) at VCC = 3V LOW POWER DISSIPATION: ICC = 1A (MAX.) at TA = 25C 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
SOT23-5L
SOT323-5L
ORDER CODES
PACKAGE SOT23-5L SOT323-5L T&R 74LX1G126STR 74LX1G126CTR
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.
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
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74LX1G126
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N 1 2 4 3 5 SYMBOL 1G 1A 1Y GND VCC NAME AND FUNCTION Output Enable Input Data Input Data Output Ground (0V) Positive Supply Voltage
TRUTH TABLE
A X L H
X : Don't Care Z : High Impedance
G L H H
Y Z L H
ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO VO IIK IOK IO Supply Voltage DC Input Voltage DC Output Voltage (VCC = 0V) DC Output Voltage (High or Low State) (note 1) DC Input Diode Current DC Output Diode Current (note 2) DC Output Current Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 50 - 50 50 50 -65 to +150 300 Unit V V V V mA mA mA mA C 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
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RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO VO IOH, IOL IOH, IOL IOH, IOL IOH, IOL IOH, IOL Top dt/dv Supply Voltage (note 1) Input Voltage Output Voltage (VCC = 0V) Output Voltage (High or Low State) High or Low Level Output Current (VCC = 4.5 to 5.5V) High or Low Level Output Current (VCC = 3.0 to 3.6V) High or Low Level Output Current (VCC = 2.7 to 3.0V) High or Low Level Output Current (VCC = 2.3 to 2.7V) High or Low Level Output Current (VCC = 1.65 to 2.3V) Operating Temperature Input Rise and Fall Time (note 2) Parameter Value 1.65 to 5.5 0 to 5.5 0 to 5.5 0 to VCC 32 24 12 8 4 -55 to 125 0 to 10 Unit V V V V mA mA mA mA mA C ns/V
1) Truth Table guaranteed: 1.2V to 3.6V 2) VIN from 0.8V to 2V at VCC = 3.0V
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DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (V) 1.65 to 1.95 2.3 to 2.7 3.0 to 5.5 VIL Low Level Input Voltage 1.65 to 1.95 2.3 to 2.7 3.0 to 5.5 VOH High Level Output Voltage 1.65 to 4.5 1.65 2.3 3.0 4.5 VOL Low Level Output Voltage 1.65 to 4.5 1.65 2.3 3.0 4.5 IOZ High Impedance Output Leakage Current Input Leakage Current Power Off Leakage Current Quiescent Supply Current 3.6 1.65 to 5.5 0 1.65 to 5.5 3.6 IO=-100 A IO=-4 mA IO=-8 mA IO=-16 mA IO=-24 mA IO=-32 mA IO=100 A IO=4 mA IO=8 mA IO=16 mA IO=24 mA IO=32 mA VI = 0 to 5.5V VI = 0 to 5.5V VI or VO = 5.5V VI = VCC or GND VI or VO = 3.6 to 5.5V VCC-0.1 1.2 1.9 2.4 2.2 3.8 0.1 0.45 0.3 0.4 0.55 0.55 10 10 10 10 10 -40 to 85 C Min. 0.75VCC 0.7VCC 0.7VCC 0.25VCC 0.3VCC 0.3VCC VCC-0.1 1.2 1.9 2.4 2.2 3.8 0.1 0.45 0.3 0.4 0.55 0.55 10 10 10 10 10 A A A A V V Max. Value -55 to 125 C Min. 0.75VCC 0.7VCC 0.7VCC 0.25VCC 0.3VCC 0.3VCC V V Max. Unit
VIH
High Level Input Voltage
II Ioff ICC
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AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition Symbol Parameter VCC (V) CL (pF) RL () ts = tr (ns) -40 to 85 C Min. 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 Max. 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 Value -55 to 125 C Min. 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 Max. 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
tPLH tPHL
tPLZ tPHZ
tPZL tPZH
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
Propagation Delay Time
15
1M
3.0
30 30 50 50 50
1000 500 500 500 500
2.0 2.0 2.5 2.5 2.5
ns
15
1M
3.0
30 30 50 50 50
1000 500 500 500 500
2.0 2.0 2.5 2.5 2.5
ns
15
1M
3.0
30 30 50 50 50
1000 500 500 500 500
2.0 2.0 2.5 2.5 2.5
ns
CAPACITIVE CHARACTERISTICS
Test Condition Symbol Parameter VCC (V) VIN = 0 or VCC VIN = 0 or VCC 1.8 2.5 3.3 fIN = 10MHz Value TA = 25 C Min. Typ. 4 5 18 18 21 10 Max. pF pF pF Unit
CIN COUT CPD
Input Capacitance Output Capacitance Power Dissipation Capacitance (note 1)
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
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TEST CIRCUIT
RT = ZOUT of pulse generator (typically 50)
TEST CIRCUIT AND WAVEFORM SYMBOL VALUE
Symbol 1.65 to 1.95V CL RL=R1 VIH VM tr = tr 15pF/30pF 1M/1000 VCC VCC/2 <2.0ns VCC 2.3 to 2.7V 15pF/30pF 1M/500 VCC VCC/2 <2.0ns 2.7 to 5.5V 15pF/50pF 1M/500 VCC VCC/2 <2.5ns
WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
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WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
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SOT23-5L MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b C D E e H L 2.60 0.10 0.90 0.00 0.90 0.35 0.09 2.80 1.50 0.95 3.00 0.60 102.3 3.9 TYP MAX. 1.45 0.10 1.30 0.50 0.20 3.00 1.75 MIN. 35.4 0.0 35.4 13.7 3.5 110.2 59.0 37.4 118.1 23.6 TYP. MAX. 57.1 3.9 51.2 19.7 7.8 118.1 68.8 mils
.
7049676C
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SOT323-5L MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b C D E E1 e e1 L 0.10 0.80 0.00 0.80 0.15 0.10 1.80 1.80 1.15 0 .65 1.3 0.30 3.9 TYP MAX. 1.10 0.10 1.00 0.30 0.18 2.20 2.40 1.35 MIN. 31.5 0.0 31.5 5.9 3.9 70.9 70.9 45.3 25.6 51.2 11.8 TYP. MAX. 43.3 3.9 39.4 11.8 7.1 86.6 94.5 53.1 mils
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Tape & Reel SOT23-xL MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 3.13 3.07 1.27 3.9 3.9 3.23 3.17 1.37 4.0 4.0 12.8 20.2 60 14.4 3.33 3.27 1.47 4.1 4.1 0.123 0.120 0.050 0.153 0.153 0.127 0.124 0.054 0.157 0.157 13.0 TYP MAX. 180 13.2 0.504 0.795 2.362 0.567 0.131 0.128 0.0.58 0.161 0.161 0.512 MIN. TYP. MAX. 7.086 0.519 inch
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Tape & Reel SOT323-xL MECHANICAL DATA
mm. DIM. MIN. A C D N T Ao Bo Ko Po P 3.9 3.8 2.25 2.7 1.2 4 4 4.1 4.2 0.153 0.149 175 12.8 20.2 59.5 60 60.5 14.4 0.088 0.106 0.047 0.157 0.157 0.161 0.165 TYP 180 13 MAX. 185 13.2 MIN. 6.889 0.504 0.795 2.362 0.567 TYP. 7.086 0.512 MAX. 7.283 0.519 inch
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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. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners (c) 2004 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com
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