ST 74V2G70 User Manual
74V2G70
74V2G70
TRIPLE BUFFER
■HIGH SPEED: tPD = 3.0ns (TYP.) at VCC = 5V
■LOW POWER DISSIPATION: ICC = 1μA(MAX.) at TA = 25°C
■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 IIOH| = IOL = 4mA (MIN) at VCC = 3.0V
■BALANCED PROPAGATION DELAYS: tPLH tPHL
■OPERATING VOLTAGE RANGE: VCC(OPR) = 2V to 5.5V
■IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74V2G70 is an advanced high-speed CMOS TRIPLE NOT INVERTED BUFFER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.
The internal circuit is composed of 3 stages including buffer output, which provide high noise immunity and stable output.
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SOT23-8L |
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ORDER CODES |
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PACKAGE |
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T & R |
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SOT23-8L |
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74V2G70STR |
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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74V2G70
INPUT EQUIVALENT CIRCUIT |
PIN DESCRIPTION |
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PIN No |
SYMBOL |
NAME QND FUNCTION |
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1, 3, 6 |
1A, 2A, 3A |
Data Inputs |
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7, 5, 2 |
1Y, 2Y, 3Y |
Data Outputs |
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4 |
GND |
Ground (0V) |
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8 |
VCC |
Positive Supply Voltage |
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TRUTH TABLE |
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nA |
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nY |
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L |
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L |
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H |
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H |
ABSOLUTE MAXIMUM RATINGS |
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Symbol |
Parameter |
Value |
Unit |
VCC |
Supply Voltage |
-0.5 to +7.0 |
V |
VI |
DC Input Voltage |
-0.5 to +7.0 |
V |
VO |
DC Output Voltage (see note 1) |
-0.5 to +7.0 |
V |
VO |
DC Output Voltage (see note 2) |
-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 |
± 25 |
mA |
ICC or IGND |
DC VCC or Ground Current |
± 50 |
mA |
Tstg |
Storage Temperature |
-65 to +150 |
°C |
TL |
Lead Temperature (10 sec) |
260 |
°C |
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
2)High or Low State
RECOMMENDED OPERATING CONDITIONS
Symbol |
Parameter |
Value |
Unit |
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VCC |
Supply Voltage |
2 to 5.5 |
V |
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VI |
Input Voltage |
0 to 5.5 |
V |
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VO |
Output Voltage (see note 1) |
0 to 5.5 |
V |
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VO |
Output Voltage (see note 2) |
0 to VCC |
V |
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Top |
Operating Temperature |
-55 to 125 |
°C |
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dt/dv |
Input Rise and Fall Time (note 3) (VCC = 3.3 ± 0.3V) |
0 to 100 |
ns/V |
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(VCC = 5.0 ± 0.5V) |
0 to 20 |
ns/V |
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1)VCC=0V
2)High or Low State
3)VIN from 30% to 70% of VCC
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74V2G70
DC SPECIFICATIONS
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Test Condition |
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Value |
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Symbol |
Parameter |
VCC |
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TA = 25°C |
-40 to 85°C |
-55 to 125°C |
Unit |
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(V) |
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Min. |
Typ. |
Max. |
Min. |
Max. |
Min. |
Max. |
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VIH |
High Level Input |
2.0 |
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1.5 |
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1.5 |
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1.5 |
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Voltage |
3.0 to |
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0.7VCC |
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0.7VCC |
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0.7VCC |
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V |
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5.5 |
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VIL |
Low Level Input |
2.0 |
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0.5 |
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0.5 |
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0.5 |
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Voltage |
3.0 to |
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0.3VCC |
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0.3VCC |
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0.3VCC |
V |
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5.5 |
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VOH |
High Level Output |
2.0 |
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IO=-50 μA |
1.9 |
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2.0 |
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1.9 |
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1.9 |
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Voltage |
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3.0 |
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IO=-50 μA |
2.9 |
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3.0 |
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2.9 |
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2.9 |
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4.5 |
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IO=-50 μA |
4.4 |
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4.5 |
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4.4 |
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4.4 |
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V |
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3.0 |
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IO=-4 mA |
2.58 |
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2.48 |
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2.4 |
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4.5 |
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IO=-8 mA |
3.94 |
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3.8 |
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3.7 |
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VOL |
Low Level Output |
2.0 |
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IO=50 μA |
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0.0 |
0.1 |
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0.1 |
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0.1 |
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Voltage |
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3.0 |
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IO=50 μA |
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0.0 |
0.1 |
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0.1 |
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0.1 |
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4.5 |
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IO=50 μA |
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0.0 |
0.1 |
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0.1 |
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0.1 |
V |
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3.0 |
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IO=4 mA |
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0.36 |
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0.44 |
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0.55 |
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4.5 |
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IO=8 mA |
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0.36 |
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0.44 |
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0.55 |
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II |
Input Leakage |
0 to |
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VI = 5.5V or GND |
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± 0.1 |
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± 1 |
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± 1 |
μA |
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Current |
5.5 |
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ICC |
Quiescent Supply |
5.5 |
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VI = VCC or GND |
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1 |
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10 |
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20 |
μA |
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Current |
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IOPD |
Power down Output |
0 |
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VO = 5.5 |
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0.5 |
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5 |
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10 |
μA |
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Leakage Current |
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AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
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Test Condition |
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Value |
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Symbol |
Parameter |
VCC |
CL |
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TA = 25°C |
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-40 to 85°C |
-55 to 125°C |
Unit |
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(V) |
(pF) |
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Min. |
Typ. |
Max. |
Min. |
Max. |
Min. |
Max. |
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tPLH tPHL |
Propagation Delay |
3.3(*) |
15 |
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3.7 |
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7.0 |
1.0 |
8.0 |
1.0 |
9.0 |
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Time |
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3.3(*) |
50 |
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5.3 |
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8.0 |
1.0 |
9.5 |
1.0 |
10.5 |
ns |
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5.0(**) |
15 |
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3.0 |
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5.0 |
1.0 |
6.0 |
1.0 |
7.0 |
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5.0(**) |
50 |
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4.1 |
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6.5 |
1.0 |
7.5 |
1.0 |
8.5 |
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(*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5V
3/8
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