|74LCX126 Low Voltage Quad Buffer with 5V Tolerant Inputs and Outputs
The LCX126 contains four independent non-inverting buffers with 3-STATE outputs. Each output is disabled when the associated output-enable (OE) input is LOW. The inputs tolerate voltages to 7V allowing the interface of 5V systems to 3V systems. The 74LCX126 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation.
s 5V tolerant inputs and outputs s 2.3V3.6V VCC specifications provided 5.5 ns tPD max (VCC 10 µA ICC max s Power down high impedance inputs and outputs s Supports live insertion/withdrawal (Note ±24 mA output drive (VCC 3.0V) s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds mA s ESD performance: Human body model > 2000V Machine model > 100V
Note 1: To ensure the high-impedance state during power up or down, OE should be tied to GND through a pull-up resistor: the minimum value or the resistor is determined by the current-sourcing capability of the driver.
Order Number 74LCX126SJ 74LCX126MTC Package Number M14D MTC14 Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150" Narrow 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code.
Pin Names An OEn On Outputs Description Inputs Output Enable Inputs
Symbol VCC VI VO IIK IOK IO ICC IGND TSTG Parameter Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source/Sink Current DC Supply Current per Supply Pin DC Ground Current per Ground Pin Storage Temperature Value Conditions Units V Output in 3-STATE Output in HIGH or LOW State (Note VI < GND VO < GND VO > VCC V mA
Symbol VCC VI VO IOH/IOL Supply Voltage Input Voltage Output Voltage Output Current HIGH or LOW State 3-STATE VCC - 3.6V VCC - 3.0V VCC 2.7V TA Free-Air Operating Temperature Input Edge Rate, VIN = 0.8V2.0V, VCC = 3.0V Parameter Operating Data Retention Min Max 3.6 5.5 VCC 5.5 V Units V
Note 2: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Note 3: IO Absolute Maximum Rating must be observed. Note 4: Unused inputs or I/Os must be held HIGH or LOW. They may not float.
Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage IOH -100 µA IOH -8 mA IOH -12 mA IOH -18 mA IOH -24 mA VOL LOW Level Output Voltage IOL 100 µA IOL = 8mA IOL 12 mA IOL 16 mA IOL mA II IOZ Input Leakage Current 3-STATE Output Leakage VI = VIH or VIL Conditions VCC (V) µA VCC to +85°C Min V Max Units V
Symbol IOFF ICC Parameter Power-Off Leakage Current Quiescent Supply Current Increase in ICC per Input
Symbol Parameter VCC 50 pF Min tPHL tPLH tPZL tPZH tPLZ tPHZ tOSHL tOSLH Output to Output Skew (Note 6) Output Disable Time Output Enable Time Propagation Delay Max = 500 VCC 50 pF Min Max VCC 30 pF Min Max ns Units
Note 6: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Symbol Parameter Conditions = 50 pF, VIH = 3.3V, VIL = 30 pF, VIH = 2.5V, VIL = 0V VOLV Quiet Output Dynamic Valley VOL = 50 pF, VIH = 3.3V, VIL = 30 pF, VIH = 2.5V, VIL = 0V VCC (V) = 25°C Typical V Units
Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions VCC = Open, 0V or VCC 0V or VCC 0V or VCC, = 10 MHz Typical 8 25 Units pF