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74V2G125
DUAL BUS BUFFER (3-STATE)
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HIGH SPEED: tPD = 3.8ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 1A(MAX.) at TA = 25C HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) POWER DOWN PROTECTION ON INPUTS AND OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8mA (MIN) at VCC = 4.5V BALANCED PROPAGATION DELAYS: tPLH tPHL OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 5.5V IMPROVED LATCH-UP IMMUNITY
SOT23-8L
ORDER CODES
PACKAGE SOT23-8L T&R 74V2G125STR
DESCRIPTION The 74V2G125 is an advanced high-speed CMOS DUAL BUS BUFFER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. 3-STATE control input nG has to be set HIGH to place the output into the high impedance state.
Power down protection is provided on all inputs and outputs 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 systems and it is ideal for portable applications like personal digital assistant, camcorder and all battery-powered equipment. All inputs and outputs are equipped with protection circuits against static discharge, giving them ESD immunity and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
June 2003
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INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1, 7 2, 5 3, 6 4 8 SYMBOL 1G, 2G 1A, 2A 2Y, 1Y GND VCC NAME AND FUNCTION Output Enable Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage
TRUTH TABLE
A X L H
X: "H" or "L" Z: High Impedance
G H L L
Y Z L H
ABSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage (see note 1) DC Output Voltage (see note 2) DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7.0 -0.5 to +7.0 -0.5 to +7.0 -0.5 to VCC + 0.5 - 20 - 20 25 50 -65 to +150 260 Unit V V V V mA mA mA mA C C
ICC or IGND DC VCC or Ground Current
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. 1) VCC=0V or nG=VCC(Output in High Impedance state) 2) High or Low State
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO VO Top dt/dv Supply Voltage Input Voltage Output Voltage (see note 1) Output Voltage (see note 2) Operating Temperature Input Rise and Fall Time (note 3) (VCC = 3.3 0.3V) (VCC = 5.0 0.5V) Parameter Value 2 to 5.5 0 to 5.5 0 to 5.5 0 to VCC -55 to 125 0 to 100 0 to 20 Unit V V V V C ns/V ns/V
1) VCC=0V or nG=VCC (Output in High Impedance state) 2) High or Low State 3) VIN from 30% to 70% of VCC
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DC SPECIFICATION
Test Condition Symbol Parameter VCC (V) 2.0 3.0 to 5.5 2.0 3.0 to 5.5 2.0 3.0 4.5 3.0 4.5 VOL Low Level Output Voltage 2.0 3.0 4.5 3.0 4.5 IOZ High Impedance Output Leakage Current Input Leakage Current Quiescent Supply Current Power down Output Leakage Current 5.5 0 to 5.5 5.5 0 IO=-50 A IO=-50 A IO=-50 A IO=-4 mA IO=-8 mA IO=50 A IO=50 A IO=50 A IO=4 mA IO=8 mA VI = VIH or VIL VO = 5.5 or GND VI = 5.5V or GND VI = VCC or GND VO = 5.5 TA = 25C Min. 1.5 0.7VCC 0.5 0.3VCC 1.9 2.9 4.4 2.58 3.94 0.0 0.0 0.0 0.1 0.1 0.1 0.36 0.36 0.25 0.1 1 0.5 2.0 3.0 4.5 1.9 2.9 4.4 2.48 3.8 0.1 0.1 0.1 0.44 0.44 2.5 1 10 5 Typ. Max. Value -40 to 85C Min. 1.5 0.7VCC 0.5 0.3VCC 1.9 2.9 4.4 2.4 3.7 0.1 0.1 0.1 0.55 0.55 5 1 20 10 A A A A V V Max. -55 to 125C Min. 1.5 0.7VCC 0.5 0.3VCC V V Max. Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
VIL
VOH
II ICC IOPD
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AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition Symbol Parameter VCC (V) 3.3(*) 3.3(*) 5.0 tPLZ tPHZ Output Disable Time
(**)
Value TA = 25C Min. Typ. 5.1 5.6 3.8 4.3 Max. 7.5 8.0 5.5 6.5 8.0 11.5 5.0 7.0 7.6 8.5 5.9 6.5 -40 to 85C Min. 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max. 8.5 9.5 6.5 7.5 9.0 12.5 6.0 8.0 9.5 10.0 7.0 7.5 -55 to 125C Min. 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Max. 9.5 10.5 7.5 8.5 10.0 13.5 7.0 9.0 10.5 11.0 8.0 8.5 ns ns ns Unit
CL (pF) 15 50 15 50 15 50 15 50 15 50 15 50 RL = 1 K RL = 1 K RL = 1 K RL = 1 K RL = 1 K RL = 1 K RL = 1 K RL = 1 K
tPLH tPHL
Propagation Delay Time
5.0(**) 3.3
(*)
5.4 7.9 3.6 5.1 5.4 5.9 3.7 4.1
3.3(*) 5.0(**) 5.0(**) 3.3
(*) (*)
tPZL tPZH
Output Enable Time
3.3
5.0(**) 5.0(**)
(*) Voltage range is 3.3V 0.3V (**) Voltage range is 5.0V 0.5V
CAPACITIVE CHARACTERISTICS
Test Condition Symbol Parameter Min. CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance (note 1) TA = 25C Typ. 4 6 14 Max. 10 Value -40 to 85C Min. Max. 10 -55 to 125C Min. Max. 10 pF pF pF Unit
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/2
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TEST CIRCUIT TEST CIRCUIT
TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ
CL =15/50pF or equivalent (includes jig and probe capacitance) R1 = 1K or equivalent RT = ZOUT of pulse generator (typically 50)
SWITCH Open VCC GND
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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SOT23-8L MECHANICAL DATA
mm. DIM. MIN. A A1 A2 b C D E E1 e e1 L 0.35 0.90 0.00 0.90 0.22 0.09 2.80 2.60 1.50 0 .65 1.95 0.55 13.7 TYP MAX. 1.45 0.15 1.30 0.38 0.20 3.00 3.00 1.75 MIN. 35.4 0.0 35.4 8.6 3.5 110.2 102.3 59.0 25.6 76.7 21.6 TYP. MAX. 57.1 5.9 51.2 14.9 7.8 118.1 118.1 68.8 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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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. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2003 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. (c) http://www.st.com
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