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Part: 74V1T126STR
Category:
Logic
-> Gates
-> VHC/VHCT Low Noise HCMOS
Description: Single Bus Buffer (3-STATE)
Company: ST Microelectronics, Inc.
Datasheet: Download 74V1T126STR datasheet File size : 110 kB
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Datasheet text preview:
74V1T126
SINGLE BUS BUFFER (3-STATE)
s s
s
s s
s
s
H IGH SPEED: tPD = 3.6ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C C OMPATIBLE WITH TTL OUTPUTS: VIH = 2V (MIN), VIL = 0.8V (MAX) 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) = 4.5V to 5.5V
SOT23-5L
SOT323-5L
ORDER CODES
PACKAGE SOT23-5L SOT323-5L T&R 74V1T126STR 74V1T126CTR
DESCRIPTION The 74V1T126 is an advanced high-speed CMOS SINGLE BUS BUFFER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS t ec hnol ogy . 3-STATE control input G 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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74V1T126
INPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
PIN No 1 2 4 3 5 SYMBOL 1G 1A 1Y GND V CC NAME AND FUNCTION Output Enable Input Data Input Data Output Ground (0V) Positive Supply Voltage
TRUTH TABLE
A X L H
X : Don't Care Z : High Impedance
G L H H
Y Z L H
AB SOLUTE MAXIMUM RATINGS
Symbol V CC VI VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage 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 VCC + 0.5 - 20 ± 20 ± 25 ± 50 -65 to +150 300 Unit 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 operations under these conditions is not implied
RECOMMENDED OPERATING CONDITIONS
Symbol V CC VI VO Top dt/dv Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise and Fall Time (note 1) (VCC = 5.0 ± 0.5V) Parameter Value 4.5 to 5.5 0 to 5.5 0 to VCC -55 to 125 0 to 20 Unit V V V °C ns/V
1) VIN from 0.8V to 2V
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74V1T126
DC SPECIFICATIONS
Test Condition Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 4.5 4.5 4.5 5.5 0 to 5.5 5.5 5.5 IO=-50 µA IO=-8 mA IO=50 µA IO=8 mA VI = VIH or VIL VO = VCC or GND VI = 5.5V or GND VI = VCC or GND One Input at 3.4V, other input at VCC or GND TA = 25°C Min. 2 0.8 4.4 3.94 0.0 0.1 0.36 ±0.25 ± 0.1 1 1.35 4.5 4.4 3.8 0.1 0.44 ± 2.5 ± 1.0 10 1.5 Typ. Max. Value -40 to 85°C Min. 2 0.8 4.4 3.7 0.1 0.55 ± 5.0 ± 1.0 20 1.5 µA µA µA mA V Max. -55 to 125°C Min. 2 0.8 Max. V V V Unit
VIH VIL VOH VOL IOZ
High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage High Impedance Output Leakage Current Input Leakage Current Quiescent Supply Current Additional Worst Case Supply Current
II ICC
IC C
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3ns)
Test Condition Symbol Parameter VC C (V) 5.0(*) 5.0(*) 5.0(*) 5.0
(*)
Value TA = 25°C Min. Typ. 3.6 3.9 3.8 4.1 4.3 4.7 Max. 6.0 6.5 5.0 7.0 7.0 7.5 -40 to 85°C Min. 1.0 1.0 1.0 1.0 1.0 1.0 Max. 7.0 7.5 6.0 8.0 8.0 8.5 -55 to 125°C Min. 1.0 1.0 1.0 1.0 1.0 1.0 Max. 8.0 8.5 7.0 9.0 9.0 9.5 ns ns Unit
CL (pF) 15 50 15 50 15 50
tPLH tPHL tPLZ tPHZ tP Z L tPZH
Propagation Delay Time Output Disable Time Output Enable Time
5.0(*) 5.0
(*)
ns
(*) Voltage range is 5.0V ± 0.5V
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74V1T126
CA PACITIVE CHARACTERISTICS
Test Condition Symbol Parameter Min. CIN CO U T CPD Input Capacitance Output Capacitance Power Dissipation Capacitance (note 1) TA = 25°C Typ. 4 5 14 Max. 10 Value -40 to 85°C Min. Max. 10 -55 to 125°C 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 operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
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
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74V1T126
W AVEFORM 1 : PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)
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