HD74LV125AFPEL中文资料
HD74LV125A
Quad. Bus Buffer Gates with 3-state Outputs
REJ03D0315–0300Z
(Previous ADE-205-245A (Z))
Rev.3.00
Jun. 03, 2004 Description
The HD74LV125A features independent line drivers with three state outputs. Each output is disabled when the associated output enable (OE) input is high. To ensure the high impedance state during power up or power down, OE should be connected to V CC through a pull-down resistor; the minimum value of the resistor is determined by the current souring capability of the driver. Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook computers), and the low-power consumption extends the battery life.
Features
?V CC = 2.0 V to 5.5 V operation
?All inputs V IH (Max.) = 5.5 V (@V CC = 0 V to 5.5 V)
?All outputs V O (Max.) = 5.5 V (@V CC = 0 V)
?Typical V OL ground bounce < 0.8 V (@V CC = 3.3 V, Ta = 25°C)
?Typical V OH undershoot > 2.3 V (@V CC = 3.3 V, Ta = 25°C)
?Output current ±8 mA (@V CC = 3.0 V to 3.6 V), ±16 mA (@V CC = 4.5 V to 5.5 V)
?Ordering Information
Part Name Package Type Package Code Package
Abbreviation Taping Abbreviation (Quantity)
HD74LV125AFPEL SOP–14 pin(JEITA)FP–14DAV FP EL (2,000 pcs/reel) HD74LV125ARPEL SOP–14 pin(JEDEC)FP–14DNV RP EL (2,500 pcs/reel) HD74LV125ATELL TSSOP–14 pin TTP–14DV T ELL (2,000 pcs/reel) Note: Please consult the sales office for the above package availability.
Function Table
Inputs
OE A Output Y
L H H
L L L
H X Z
Note:H:High level
L:Low level
X:Immaterial
Z:High impedance
Pin Arrangement
Absolute Maximum Ratings
Item
Symbol Ratings Unit Conditions
Supply voltage range V CC –0.5 to 7.0V Input voltage range*V I –0.5 to 7.0
V –0.5 to V CC + 0.5Output: H or L
Output voltage range*V O
–0.5 to 7.0V V CC : OFF or Output: Z Input clamp current I IK –20mA V I < 0
Output clamp current
I OK ±50mA V O < 0 or V O > V CC Continuous output current I O
±35mA V O = 0 to V CC
Continuous current through V CC or GND
I CC or I GND ±70mA 785SOP Maximum power dissipation at Ta = 25°C (in still air)*3P T 500
mW TSSOP
Storage temperature
Tstg
–65 to 150
°C
Notes:The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
1.The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are
observed.
2.This value is limited to 5.5 V maximum.
3.The maximum package power dissipation was calculated using a junction temperature of 150°C.
Recommended Operating Conditions
Item
Symbol Min Max Unit Conditions
Supply voltage range V CC 2.0 5.5V Input voltage range V I 0 5.5V 0V CC H or L
Output voltage range V O 0 5.5V High impedance state —–50μA V CC = 2.0 V
—–2V CC = 2.3 to 2.7 V —–8V CC = 3.0 to 3.6 V I OH
—–16mA
V CC = 4.5 to 5.5 V —50μA V CC = 2.0 V
—2V CC = 2.3 to 2.7 V —8V CC = 3.0 to 3.6 V Output current
I OL
—16mA
V CC = 4.5 to 5.5 V 0200V CC = 2.3 to 2.7 V 0100V CC = 3.0 to 3.6 V Input transition rise or fall rate ?t /?v 020ns/V
V CC = 4.5 to 5.5 V
Operating free-air temperature Ta –40
85
°C
Note:Unused or floating inputs must be held high or low.
Logic Diagram
DC Electrical Characteristics
Ta = –40 to 85°C
Item Symbol V CC (V)*Min Typ Max Unit Test Conditions
2.0
1.5
——2.3 to 2.7V CC × 0.7——3.0 to 3.6V CC × 0.7——V IH
4.5 to
5.5V CC × 0.7——2.0
——0.5
2.3 to 2.7——V CC × 0.3
3.0 to 3.6——V CC × 0.3Input voltage
V IL
4.5 to
5.5—
—V CC × 0.3V
Min to Max V CC – 0.1——I OH = –50 μA 2.3 2.0——I OH = –2 mA 3.0 2.48——I OH = –8 mA V OH 4.5
3.8——I OH = –16 mA Min to Max ——0.1I OL = 50 μA 2.3——0.4I OL = 2 mA 3.0——0.44I OL = 8 mA Output voltage V OL
4.5——0.55V
I OL = 16 mA
Input current I IN 0 to 5.5——±1μA V I = 5.5 V or GND Off-state output current
I OZ 5.5——±5μA V O = V CC or GND Quiescent supply current I CC 5.5——20μA V I = V CC or GND, I O = 0Output leakage current
I OFF 0——5μA V I or V O = 0 V to 5.5 V Input capacitance
C IN
3.3
—
3.0
—
pF
V I = V CC or GND
Note:For conditions shown as Min or Max, use the appropriate values under recommended operating conditions.
Switching Characteristics
V CC = 2.5 ± 0.2 V
Ta = 25°C
Ta = –40 to 85°C Item Symbol Min Typ Max Min Max Unit Test
Conditions FROM (Input)TO
(Output)— 6.813.0 1.015.5C L = 15 pF Propagation delay time t PLH t PHL —8.716.5 1.018.5ns C L = 50 pF A Y —7.013.0 1.015.5C L = 15 pF Enable time t ZH t ZL —8.816.5 1.018.5ns C L = 50 pF — 5.114.7 1.017.0C L = 15 pF Disable time
t HZ t LZ
—
7.3
18.2
1.0
20.5
ns
C L = 50 pF
OE
Y
V CC = 3.3 ± 0.3 V
Ta = 25°C
Ta = –40 to 85°C Item Symbol Min Typ Max Min Max Unit Test
Conditions FROM (Input)TO
(Output)— 4.88.0 1.09.5C L = 15 pF Propagation delay time t PLH t PHL — 6.111.5 1.013.0ns C L = 50 pF A Y — 4.88.0 1.09.5C L = 15 pF Enable time t ZH t ZL — 6.211.5 1.013.0ns C L = 50 pF — 4.19.7 1.011.5C L = 15 pF Disable time
t HZ t LZ
—
5.5
13.2
1.0
15.0
ns
C L = 50 pF
OE
Y
V CC = 5.0 ± 0.5 V
Ta = 25°C
Ta = –40 to 85°C Item Symbol Min Typ Max Min Max Unit Test
Conditions FROM (Input)TO
(Output)— 3.4 5.5 1.0 6.5C L = 15 pF Propagation delay time t PLH t PHL — 4.37.5 1.08.5ns C L = 50 pF A Y — 3.4 5.1 1.0 6.0C L = 15 pF Enable time t ZH t ZL — 4.47.1 1.08.0ns C L = 50 pF OE Y — 3.2 6.8 1.08.0C L = 15 pF Disable time
t HZ t LZ
—
4.0
8.8
1.0
10.0
ns
C L = 50 pF
Output-skew Characteristics
Ta = 25°C Ta = –40 to 85°C Item Symbol V CC = (V)
Min
Max
Min Max
Unit
2.3 to 2.7— 2.0— 2.0
3.0 to 3.6— 1.5— 1.5Output skew
t sk (O)
4.5 to
5.5— 1.0— 1.0
ns
Note:Skew between any outputs of the same package switching in the same direction. This parameter is warranted
but not production tested.
Operating Characteristics
C L = 50 pF
Ta = 25°C Item
Symbol V CC = (V)Min Typ Max Unit Test Conditions 3.3—15.5—Power dissipation capacitance
C PD
5.0
—
17.6
—
pF
f = 10 MHz
Noise Characteristics
C L = 50 pF
Ta = 25°C
Item Symbol V CC = (V)Min Typ Max Unit Test Conditions
V OL (P) 3.3—0.30.8V
Quiet output, maximum
dynamic V OL
V OL (V) 3.3—–0.3–0.8V
Quiet output, minimum
dynamic V OL
V OH (V) 3.3— 3.0—V
Quiet output, minimum
dynamic V OH
V IH (D) 3.3 2.31——V
High-level dynamic input
voltage
V IL (D) 3.3——0.99V
Low-level dynamic input
voltage
Test Circuit
Package Dimensions
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