ST 74V1G125 User Manual
74V1G125
SINGLE BUS BUFFER (3-STATE)
■HIGH SPEED: tPD = 3.8ns (TYP.) at VCC = 5V
■LOW POWER DISSIPATION: ICC = 1 A (MAX.) at TA=25°C
■HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.)
■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) = 2V to 5.5V
■IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
SOT23-5L SOT323-5L
ORDER CODES
PACKAGE |
T & R |
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SOT23-5L |
74V1G125STR |
SOT323-5L |
74V1G125CTR |
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The 74V1G125 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.
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
April 2004 |
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74V1G125
INPUT EQUIVALENT CIRCUIT |
PIN DESCRIPTION |
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PIN N° |
SYMBOL |
NAME AND FUNCTION |
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1 |
1G |
Output Enable Input |
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2 |
1A |
Data Input |
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4 |
1Y |
Data Output |
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3 |
GND |
Ground (0V) |
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5 |
VCC |
Positive Supply Voltage |
TRUTH TABLE |
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A |
G |
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Y |
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X |
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H |
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Z |
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L |
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L |
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L |
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H |
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L |
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H |
X : Don’t Care |
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Z : High Impedance |
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ABSOLUTE MAXIMUM RATINGS
Symbol |
Parameter |
Value |
Unit |
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VCC |
Supply Voltage |
-0.5 to +7.0 |
V |
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VI |
DC Input Voltage |
-0.5 to +7.0 |
V |
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VO |
DC Output Voltage |
-0.5 to VCC + 0.5 |
V |
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IIK |
DC Input Diode Current |
- 20 |
mA |
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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 |
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TL |
Lead Temperature (10 sec) |
260 |
°C |
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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 |
Parameter |
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Value |
Unit |
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VCC |
Supply Voltage |
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2 to 5.5 |
V |
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VI |
Input Voltage |
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0 to 5.5 |
V |
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VO |
Output Voltage |
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0 to VCC |
V |
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Top |
Operating Temperature |
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-55 to 125 |
°C |
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dt/dv |
Input Rise and Fall Time (note 1) (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) VIN from 30% to 70% of VCC
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74V1G125
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 |
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-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 A |
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 A |
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 A |
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 A |
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0.0 |
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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 A |
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0.0 |
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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 A |
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0.0 |
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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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IOZ |
High Impedance |
5.5 |
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VI = VIH or VIL |
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± |
0.25 |
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± |
2.5 |
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± |
5 |
A |
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Output Leakage |
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VO = VCC or GND |
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Current |
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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 |
A |
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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 |
A |
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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 |
Propagation Delay |
3.3(*) |
15 |
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5.1 |
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7.5 |
1.0 |
8.5 |
1.0 |
9.5 |
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tPHL |
Time |
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(*) |
50 |
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5.6 |
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8.0 |
1.0 |
9.5 |
1.0 |
10.5 |
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3.3 |
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ns |
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5.0(**) |
15 |
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3.8 |
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5.5 |
1.0 |
6.5 |
1.0 |
7.5 |
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5.0(**) |
50 |
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4.3 |
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6.5 |
1.0 |
7.5 |
1.0 |
8.5 |
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tPLZ |
Output Disable |
3.3(*) |
15 |
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5.4 |
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8.0 |
1.0 |
9.0 |
1.0 |
10.0 |
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tPHZ |
Time |
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3.3(*) |
50 |
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7.9 |
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11.5 |
1.0 |
12.5 |
1.0 |
13.5 |
ns |
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5.0(**) |
15 |
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3.6 |
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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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5.1 |
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7.0 |
1.0 |
8.0 |
1.0 |
9.0 |
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3.3(*) |
15 |
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5.4 |
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7.6 |
1.0 |
9.5 |
1.0 |
10.5 |
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tPZL |
Output Enable |
3.3(*) |
50 |
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5.9 |
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8.5 |
1.0 |
10.0 |
1.0 |
11.0 |
ns |
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tPZH |
Time |
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5.0(**) |
15 |
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3.7 |
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5.9 |
1.0 |
7.0 |
1.0 |
8.0 |
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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 |
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(**) Voltage range is 5.0V ± |
0.5V |
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3/10
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