ST 74V1G126 User Manual
74V1G126
SINGLE BUS BUFFER (3-STATE)
■HIGH SPEED: tPD = 3.4ns (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
■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 |
SOT23-5L |
74V1G126STR |
SOT323-5L |
74V1G126CTR |
The 74V1G126 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 1G 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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001 |
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74V1G126
INPUT EQUIVALENT CIRCUIT |
PIN DESCRIPTION |
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|
|
PIN No |
SYMBOL |
NAME AND FUNCTION |
|
1 |
1G |
Output Enable Input |
|
2 |
1A |
Data Input |
|
4 |
1Y |
Data Output |
|
3 |
GND |
Ground (0V) |
|
5 |
VCC |
Positive Supply Voltage |
TRUTH TABLE |
|
|
A |
G |
Y |
X |
L |
Z |
L |
H |
L |
H |
H |
H |
X : Don't Care |
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|
Z : High Impedance |
|
|
ABSOLUTE MAXIMUM RATINGS
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 |
-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 |
|
T |
L |
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.
RECOMMENDED OPERATING CONDITIONS
Symbol |
Parameter |
Value |
Unit |
|
VCC |
Supply Voltage |
2 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 |
|
dt/dv |
Input Rise and Fall Time (note 1) (VCC = 3.3 ± 0.3V) |
0 to 100 |
ns/V |
|
(VCC = 5.0 ± 0.5V) |
0 to 20 |
ns/V |
||
|
1) VIN from 30% to 70% of VCC
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74V1G126
DC SPECIFICATIONS
Symbol |
Parameter |
VIH |
High Level Input |
|
Voltage |
VIL |
Low Level Input |
|
Voltage |
VOH |
High Level Output |
|
Voltage |
VOL |
Low Level Output |
|
Voltage |
IOZ |
High Impedance |
|
Output Leakage |
|
Current |
II |
Input Leakage |
|
Current |
ICC |
Quiescent Supply |
|
Current |
|
Test Condition |
|
|
|
Value |
|
|
VCC |
|
|
TA = 25°C |
-40 to 85°C |
-55 to 125°C |
Unit |
|
(V) |
|
Min. Typ. Max. Min. Max. Min. Max. |
|
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|
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2.0 |
|
1.5 |
|
|
1.5 |
1.5 |
|
3.0 to |
|
0.7VCC |
|
0.7VCC |
0.7VCC |
V |
|
5.5 |
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|
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2.0 |
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|
0.5 |
0.5 |
0.5 |
|
3.0 to |
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|
0.3VCC |
0.3VCC |
0.3VCC |
V |
5.5 |
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2.0 |
IO=-50 μA |
1.9 |
2.0 |
|
1.9 |
1.9 |
|
3.0 |
IO=-50 μA |
2.9 |
3.0 |
|
2.9 |
2.9 |
|
4.5 |
IO=-50 μA |
4.4 |
4.5 |
|
4.4 |
4.4 |
V |
3.0 |
IO=-4 mA |
2.58 |
|
|
2.48 |
2.4 |
|
4.5 |
IO=-8 mA |
3.94 |
|
|
3.8 |
3.7 |
|
2.0 |
IO=50 μA |
|
0.0 |
0.1 |
0.1 |
0.1 |
|
3.0 |
IO=50 μA |
|
0.0 |
0.1 |
0.1 |
0.1 |
|
4.5 |
IO=50 μA |
|
0.0 |
0.1 |
0.1 |
0.1 |
V |
3.0 |
IO=4 mA |
|
|
0.36 |
0.44 |
0.55 |
|
4.5 |
IO=8 mA |
|
|
0.36 |
0.44 |
0.55 |
|
5.5 |
VI = VIH or VIL |
|
|
±0.25 |
± 2.5 |
± 5 |
μA |
VO = VCC or GND |
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|
|||||
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|
0 to |
VI = 5.5V or GND |
|
|
± 0.1 |
± 1 |
± 1 |
μA |
5.5 |
|
|
|||||
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|
|
|
5.5 |
VI = VCC or GND |
|
|
1 |
10 |
20 |
μA |
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
|
|
Test Condition |
|
|
Value |
|
|
|
|
Symbol |
Parameter |
VCC |
CL |
TA = 25°C |
|
-40 to 85°C |
-55 to 125°C Unit |
||
|
|
(V) |
(pF) |
Min. Typ. Max. Min. Max. Min. Max. |
|||||
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|
|
|
||||||
tPLH |
Propagation Delay |
3.3(*) |
15 |
4.7 |
7.5 |
1.0 |
8.5 |
1.0 |
9.5 |
tPHL |
Time |
3.3(*) |
50 |
5.2 |
8.0 |
1.0 |
9.5 |
1.0 |
10.5 |
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|
5.0(**) |
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|
ns |
|
|
15 |
3.4 |
5.5 |
1.0 |
6.5 |
1.0 |
7.5 |
|
|
|
5.0(**) |
50 |
3.7 |
6.5 |
1.0 |
7.5 |
1.0 |
8.5 |
tPLZ |
Output Disable |
3.3(*) |
15 |
4.4 |
8.0 |
1.0 |
9.0 |
1.0 |
10.0 |
tPHZ |
Time |
3.3(*) |
50 |
4.8 |
11.5 |
1.0 |
12.5 |
1.0 |
13.5 |
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|
5.0(**) |
|
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|
ns |
|
|
15 |
3.0 |
5.0 |
1.0 |
6.0 |
1.0 |
7.0 |
|
|
|
5.0(**) |
50 |
3.2 |
7.0 |
1.0 |
8.0 |
1.0 |
9.0 |
|
|
3.3(*) |
15 |
4.8 |
7.6 |
1.0 |
9.5 |
1.0 |
10.5 |
tPZL |
Output Enable |
3.3(*) |
50 |
5.3 |
8.5 |
1.0 |
10.0 |
1.0 |
11.0 |
tPZH |
Time |
5.0(**) |
|
|
|
|
|
|
ns |
15 |
3.6 |
5.9 |
1.0 |
7.0 |
1.0 |
8.0 |
|||
|
|
5.0(**) |
50 |
3.9 |
6.5 |
1.0 |
7.5 |
1.0 |
8.5 |
(*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5V
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