September 2000 Revised September 2000 74LCXZ16244 Voltage 16-Bit

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September 2000 Revised September 2000 74LCXZ16244 Voltage 16-Bit

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74LCXZ16244 Voltage 16-Bit Buffer/Line Driver with Tolerant Inputs Outputs
September 2000 Revised September 2000
74LCXZ16244 Voltage 16-Bit Buffer/Line Driver with Tolerant Inputs Outputs
LCXZ16244 contains sixteen non-inverting buffers with 3-STATE outputs designed employed memory address driver, clock driver, oriented transmitter/receiver. device nibble controlled. Each nibble separate 3-STATE control inputs which shorted together full 16-bit operation. When between 1.5V, LCXZ12644 high impedance state during power power down. This places outputs high impedance state preventing intermittent impedance loading glitching oriented applications. LCXZ16244 designed voltage (2.7V 3.3V) applications with capability interfacing signal environment. LCXZ16244 fabricated with advanced CMOS technology achieve high speed operation while maintaining CMOS power dissipation.
Features
tolerant inputs outputs Guaranteed power up/down high impedance Supports live insertion/withdrawal 2.7V-3.6V specifications provided (VCC 3.0V), output drive (VCC 3.0V) Implements patented noise/EMI reduction circuitry Latch-up performance exceeds performance: Human body model 2000V Machine model 200V
Ordering Code:
Order Number 74LCXZ16244MEA 74LCXZ16244MTD Package Number MS48A MTD48 Package Description 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300 Wide 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available Tape Reel. Specify appending suffix letter ordering code.
Connection Diagram
Logic Symbol
Descriptions
Names I0-I15 O0-O15 Description Output Enable Input (Active LOW) Inputs Outputs
2000 Fairchild Semiconductor Corporation
DS500252
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74LCXZ16244
Truth Tables
Inputs I0-I3 Outputs O0-O3 Inputs I8-I11 Outputs O8-O11
Inputs
HIGH Voltage Level Voltage Level
Outputs I4-I7 O4-O7
Inputs I12-I15
Outputs O12-O15
Immaterial High Impedance
Functional Description
LCXZ16244 contains sixteen non-inverting buffers with 3-STATE standard outputs. device nibble bits) controlled with each nibble functioning identically, independent other. control pins shorted together obtain full 16-bit operation. 3-STATE outputs controlled Output Enable (OEn) input each nibble. When LOW, outputs 2-state mode. When HIGH, outputs high impedance mode, this does interfere with entering data into inputs.
Logic Diagram
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74LCXZ16244
Absolute Maximum Ratings(Note
Symbol IGND TSTG Parameter Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source/Sink Current Supply Current Supply Ground Current Ground Storage Temperature Value Conditions Units Output 3-STATE 0-1.5V Output HIGH State (Note
-0.5 +7.0 -0.5 +7.0 -0.5 +7.0 -0.5 ±100 ±100 +150
Recommended Operating Conditions (Note
Symbol IOH/IOL Supply Voltage Input Voltage Output Voltage Output Current Free-Air Operating Temperature Input Edge Rate, 0.8V-2.0V, 3.0V HIGH State 3-STATE 3.0V 3.6V 2.7V 3.0V Parameter Operating Units
ns/V
Note Absolute Maximum Ratings those values beyond which safety device cannot guaranteed. device should operated these limits. parametric values defined Electrical Characteristics tables guaranteed Absolute Maximum Ratings. "Recommended Operating Conditions" table will define conditions actual device operation. Note Absolute Maximum Rating must observed. Note Unused inputs must held HIGH LOW. They float.
Electrical Characteristics
Symbol Parameter HIGH Level Input Voltage Level Input Voltage HIGH Level Output Voltage -100 Level Output Voltage IOFF IPU/PD Input Leakage Current 3-STATE Output Leakage Power-Off Leakage Current Power Up/Down 3-STATE Output Current Quiescent Supply Current Increase Input 5.5V 5.5V 5.5V 0.5V 3.6V 5.5V (Note -0.6V
Note Outputs disabled 3-STATE only.
Conditions
-40°C +85°C 0.55 ±5.0 ±5.0 ±5.0 ±225
Units
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74LCXZ16244
Electrical Characteristics
-40°C +85°C, Symbol Parameter 3.3V 0.3V tPHL tPLH tPZL tPZH tPLZ tPHZ tOSHL tOSLH Output Output Skew (Note Output Disable Time Propagation Delay Data Output Output Enable Time 2.7V Units
Note Skew defined absolute value difference between actual propagation delay separate outputs same device. specification applies outputs switching same direction, either HIGH-to-LOW (tOSHL) LOW-to-HIGH (tOSLH). Parameter guaranteed design.
Dynamic Switching Characteristics
Symbol VOLP VOLV Parameter Quiet Output Dynamic Peak Quiet Output Dynamic Valley Conditions 3.3V, 3.3V, 25°C Typical -0.8 Units
Capacitance
Symbol COUT Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter Conditions Open, 3.3V, 3.3V, VCC, Typical Units
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74LCXZ16244
LOADING WAVEFORMS Generic Family
FIGURE Test Circuit includes probe capacitance) 3.3V, 2.7V 2.5V
Waveform Inverting Non-Inverting Functions
3-STATE Output High Enable Disable Times Logic
Propagation Delay. Pulse Width trec Waveforms
Setup Time, Hold Time Recovery Time Logic
3-STATE Output Enable Disable Times Logic FIGURE Waveforms (Input Characteristics; =1MHz, 3ns) Symbol 3.3V 0.3V 1.5V 1.5V 0.3V 0.3V 1.5V 1.5V 0.3V 0.3V 2.7V
trise tfall
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74LCXZ16244
Schematic Diagram Generic Family
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74LCXZ16244
Physical Dimensions inches (millimeters) unless otherwise noted
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300 Wide Package Number MS48A
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74LCXZ16244 Voltage 16-Bit Buffer/Line Driver with Tolerant Inputs Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD48 Fairchild does assume responsibility circuitry described, circuit patent licenses implied Fairchild reserves right time without notice change said circuitry specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS AUTHORIZED CRITICAL COMPONENTS LIFE SUPPORT DEVICES SYSTEMS WITHOUT EXPRESS WRITTEN APPROVAL PRESIDENT FAIRCHILD SEMICONDUCTOR CORPORATION. used herein: Life support devices systems devices systems which, intended surgical implant into body, support sustain life, whose failure perform when properly used accordance with instructions provided labeling, reasonably expected result significant injury user. www.fairchildsemi.com critical component component life support device system whose failure perform reasonably expected cause failure life support device system, affect safety effectiveness. www.fairchildsemi.com

September 2000 Revised September 2000 74LCXZ16244 Voltage 16-Bit

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