March 2002 Revised March 2002 74LCXZ16245 Voltage 16-Bit Bidirect
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74LCXZ16245 Voltage 16-Bit Bidirectional Transceiver with Tolerant Inputs Outputs
March 2002 Revised March 2002
74LCXZ16245 Voltage 16-Bit Bidirectional Transceiver with Tolerant Inputs Outputs
LCXZ16245 contains sixteen non-inverting bidirectional buffers with 3-STATE outputs intended oriented applications. device designed voltage (2.7V 3.3V) applications with capability interfacing signal environment. device byte controlled. Each byte separate control inputs which could shorted together full 16-bit operation. inputs determine direction data flow through device. inputs disable both ports placing them high impedance state. When between 1.5V, LCXZ16245 high impedance state during power-up power-down. This places outputs high impedance state preventing intermittent impedance loading glitching oriented applications. LCXZ16245 fabricated with advanced CMOS technology achieve high speed operation while maintaining CMOS power dissipation.
Features
tolerant inputs outputs 2.7V-3.6V specifications provided (VCC 3.3V), Power-down high impedance inputs outputs Supports live insertion/withdrawal (Note output drive (VCC 3.0V) Implements patented noise/EMI reduction circuitry Latch-up performance conforms requirements JESD78 performance: Human body model 2000V Machine model 200V Also packaged plastic Fine-Pitch Ball Grid Array (FBGA) (Preliminary)
Note ensure high-impedance state during power down, should tied through pull-up resistor: minimum value resistor determined current-sourcing capability driver.
Ordering Code:
Order Number 74LCXZ16245GX (Note 74LCXZ16245MTD Package Number BGA54A (Preliminary) MTD48 Package Description 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide [TAPE REEL] 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. Note package available Tape Reel only.
Logic Symbol
2002 Fairchild Semiconductor Corporation
DS500580
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74LCXZ16245
Connection Diagrams
Assignment SSOP TSSOP
Descriptions
Names T/Rn A0-A15 B0-B15 Description Output Enable Input Transmit/Receive Input Side Inputs 3-STATE Outputs Side Inputs 3-STATE Outputs Connect
FBGA Assignments
T/R1 T/R2
Truth Tables
Inputs Inputs Assignment FBGA T/R2 Outputs B8-B15 Data A8-A15 A8-A15 Data B8-B15 HIGH State A8-A15, B8-B15 T/R1 Outputs B0-B7 Data A0-A7 A0-A7 Data B0-B7 HIGH State A0-A7, B0-B7
HIGH Voltage Level Voltage Level Immaterial High Impedance
Logic Diagram
(Top Thru View)
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74LCXZ16245
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 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 I/O's 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 Leakage Power-Off Leakage Current Power-Up/Power-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
2.7-3.6 2.7-3.6 2.7-3.6
-40°C +85°C 0.55 ±5.0 ±5.0 ±5.0 ±225
Units
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74LCXZ16245
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 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 CI/O Input Capacitance Input/Output Capacitance Power Dissipation Capacitance Parameter Conditions Open, 3.3V, 3.3V, VCC, Typical Units
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74LCXZ16245
LOADING WAVEFORMS Generic Family
FIGURE Test Circuit includes probe capacitance) Test tPLH, tPHL tPZL, tPLZ tPZH, tPHZ Switch Open 0.3V, 2.7V
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
trise tfall
2.7V 1.5V 1.5V 0.3V 0.3V
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74LCXZ16245
Schematic Diagram Generic Family
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74LCXZ16245
Physical Dimensions inches (millimeters) unless otherwise noted
54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA54A Preliminary
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74LCXZ16245 Voltage 16-Bit Bidirectional Transceiver 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
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