LC4064C-5T48I - 64-Macrocell 400 MHz CPLD | Lattice
MPN: LC4064C-5T48I ✓ פעילLC4064C-5T48I סקירה
A complex programmable logic device is a user-programmable semiconductor that combines programmable logic arrays with a programmable interconnect. A CPLD occupies the functional hierarchy between basic fixed-function logic and an FPGA: it retains the Electrically Erasable Programmable ROM architecture while offering deterministic timing, comparatively simple design entry, and in-system programmability. This makes the LC4064C suitable for control logic, bus arbitration, interface translation, and glue logic rather than general-purpose processor execution.
The LC4064C provides up to four global clock pins with programmable clock polarity control. Its output macrocells can drive as many as 80 product terms per output, allowing moderately dense combinational and registered logic to be consolidated into one package. The 400 MHz fMAX and 2.5 ns tPD figures make it useful for clocked control paths and multi-clock designs requiring predictable propagation performance.
The manufacturer identifies the LC4064C family as a 3.3 V, 2.5 V, and 1.8 V in-system programmable SuperFAST high-density PLD. Multi-voltage support allows the core and I/O structure to be evaluated against the system voltage plan, although exact core-versus-I/O voltage assignments must be confirmed in the manufacturer datasheet before PCB and power-tree design.
Typical uses include peripheral interfacing, legacy bus decoding, clock-domain control, interrupt and glue logic, and embedded system sequencing. A microcontroller or FPGA can use the CPLD as a deterministic companion block for protocol conversion or signal conditioning without adding continuous processor overhead.
Designers should reserve configuration pins and verify the supported programming interface, clocking topology, and I/O standards against the package pinout. Because the supplied search evidence confirms the 48-TQFP package but does not expose individual pin assignments, the PCB footprint and pin names must be verified against the official Lattice Semiconductor datasheet before layout release.
This page combines the verified distributor specifications, same-package family comparisons, and application-oriented design guidance. It also separates documented performance data from parameters that still require confirmation from the full manufacturer datasheet, helping engineers evaluate the LC4064C-5T48I without treating unverified electrical details as guaranteed specifications.
חלופות תחליף ישיר עבור LC4064C-5T48I — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
LC4064C-5TN48I
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
LC4064V-10TN48I
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
LC4064V-75TN48C
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
LC4064ZE-7TN48I
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
LC4064C-5T48I דירוגים מרביים ומאפיינים חשמליים
| Device Type | Complex programmable logic device (CPLD) |
| Architecture | SuperFAST high-density PLD |
| Macrocell Count | 64 macrocells |
| Maximum Operating Frequency | 400 MHz |
| Maximum Propagation Delay | 2.5 ns |
| Supported Supply Voltages | 3.3 V, 2.5 V, and 1.8 V |
| Programmability | In-system programmable |
| Global Clock Inputs | Up to 4 pins |
| Clock Polarity | Programmable |
| Product Terms per Output | Up to 80 PTs |
| מארז | 48-pin TQFP |
| סוג הרכבה | Surface mount |
| RoHS Compliance | Compliant, based on verified cross-reference listing |
מדריך תצורת פינים של LC4064C-5T48I 48-pin tqfp
תצורת פינים עבור LC4064C-5T48I (מארזת 48-pin tqfp). מעגל משולב דיגיטלי זה כולל GPIO, ממשקי תקשורת (UART, SPI, I2C) ופיני מתח. יש לעיין בגיליון הנתונים של היצרן לפונקציות פינים חלופיות ולאפשרויות תצורה. חיוני לתכנון מערכות משובצות ולפריסת PCB.
אין נתוני פריסת פינים מפורטים עבור LC4064C-5T48I.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
LC4064C-5T48I מתאים עבור 6 יישוםs: Protocol Conversion and Bus Interfacing, Deterministic Clock and Reset Control, Embedded Peripheral Glue Logic, High-Speed Data Capture Interface Control, Industrial Automation Control, Interface Bridging Between Host Processors.
Protocol Conversion and Bus Interfacing
The LC4064C-5T48I fits protocol-conversion logic between systems whose timing or signal formats do not match directly. Its 64 macrocells, 400 MHz maximum operating frequency, and 2.5 ns propagation delay provide deterministic combinational and registered functions, while up to 80 product terms per output support relatively wide decoding equations. A microcontroller can place the CPLD between legacy peripheral buses and a modern parallel interface, allowing conversion logic to operate independently of the main processor. Because the CPLD is in-system programmable, interface behavior can be updated without replacing the assembly. Final design work must verify the 48-pin assignment, supported I/O standards, and direction-control requirements in the manufacturer datasheet.
מומלץ
Deterministic Clock and Reset Control
The LC4064C-5T48I is appropriate for central clock-generation, reset-distribution, and power-sequencing control where predictable timing matters more than large unstructured logic capacity. The device provides up to four global clock pins with programmable clock polarity, allowing related clock domains to be inverted or selected without relying on inverter chains. A verified 2.5 ns propagation delay and 400 MHz fMAX provide useful margin for control paths at moderate clock rates. One macrocell bank can also implement state-machine-based sequencing. Before schematic release, confirm clock-input locations, configuration behavior during startup, and the intended operating supply configuration against the exact 48-pin datasheet.
מומלץ
Embedded Peripheral Glue Logic
The LC4064C-5T48I consolidates interrupt control, chip-select generation, and peripheral handshake logic around a microcontroller or FPGA. Its 64 macrocells are sufficient for multiple deterministic state machines and address decoders, and the 400 MHz fMAX leaves substantial timing margin compared with many low-speed glue-logic implementations. Placing these functions in a separate CPLD also reduces the load and interrupt complexity handled by the host processor. The 48-pin TQFP package supports conventional surface-mount assembly, while in-system programmability simplifies board bring-up and field updates. Engineers should still validate logic-cell allocation, available I/O, and configuration-pin requirements against the Lattice Semiconductor design tool output.
מומלץ
High-Speed Data Capture Interface Control
The LC4064C-5T48I can implement acquisition sequencing, data-valid qualification, and format-control logic in instrumentation and industrial data-acquisition systems. Its 2.5 ns propagation delay and 400 MHz maximum operating frequency suit paths that must coordinate samples or channel multiplexing, while four global clock inputs provide a structured basis for multi-clock implementations. Up to 80 product terms per output allow each output function to combine a wider set of conditions than a simple look-up table would provide. Actual input-to-output and clock-to-output performance must be calculated with the speed-grade timing tables, because the headline fMAX and tPD values do not replace system-level timing analysis.
מומלץ
Industrial Automation Control
The LC4064C-5T48I is a candidate for deterministic machine-control, safety-adjacent monitoring, and actuator-sequencing logic where a microcontroller benefits from an independent programmable logic block. Its 64 macrocells can implement state machines, edge detection, interlock decoding, and fault-latch behavior with a verified 2.5 ns propagation delay. In-system programmability permits controlled logic revisions after validation, and the 48-pin TQFP package is compatible with standard PCB assembly processes. The supplied evidence does not state the exact operating-temperature range or industrial certification status, so both attributes must be confirmed before the component is released into industrial control equipment.
מומלץ
Interface Bridging Between Host Processors
The LC4064C-5T48I can bridge asynchronous host-processor interfaces by generating request acknowledgments, translating handshake polarity, and coordinating bus ownership. The programmable global clock inputs with selectable polarity are useful for synchronizing logic to more than one system clock, and the 400 MHz fMAX provides margin relative to moderate-speed peripheral interfaces. Up to four global clocks and 64 macrocells allow several independent handshake functions to coexist in one device. Designers should treat the CPLD as a timing component rather than a general processor substitute, use the official timing analyzer for setup and hold analysis, and verify reset-state pin requirements and I/O voltage limits in the Lattice Semiconductor datasheet.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור LC4064C-5T48I — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | LC4064C-5TN48I | LC4064V-10TN48I | LC4064V-75TN48C | LC4064ZE-7TN48I |
|---|---|---|---|---|---|
| Package | 48-pin TQFP | 48-pin TQFP | 48-pin TQFP | 48-pin TQFP | 48-pin TQFP |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Device Family | LC4064C | LC4064C | LC4064V | LC4064V | LC4064ZE |
| Maximum Propagation Delay | 2.5 ns | 2.5 ns-class -5 designation | 10 ns-class designation | 7.5 ns-class designation | 7 ns-class designation |
| RoHS Status | Compliant | Compliant | Compliant | Compliant | Compliant |
מבדילים עיקריים
- Faster timing class than the identified same-package LC4064 alternatives (לעומתLC4064V-10TN48I)
- Higher verified operating-frequency figure (לעומתLC4064V-75TN48C)
- Same-family LC4064C alternative preserves architecture alignment (לעומתLC4064C-5TN48I)
- Higher logic density than the individual 32-macrocell device family variants (לעומתLC4064C-5T48I)
הערות תכנון
Do not substitute an LC4064V or LC4064ZE part solely because it is labeled as a 48-pin TQFP device. The target LC4064C-5T48I has a verified 2.5 ns propagation delay, while the identified alternatives carry 7 ns, 7.5 ns, or 10 ns-class timing designations. A replacement can change the longest path through combinational logic and invalidate clock-domain timing margins. Before substitution, rerun synthesis and static timing analysis, verify configuration pin states, and compare every I/O's voltage and drive requirement against the original design.
Treat the CPLD's global clock distribution as a high-fanout network rather than an ordinary signal. The device supports up to four global clock pins and programmable polarity, but the supported clock pins, routing limits, and recommended input treatment must be confirmed in the family datasheet. Route the clock on a short, continuous trace, keep switching logic and high-current edges away from the clock region, and use the vendor's timing analyzer to verify skew and hold margin before adding external buffering.
The verified evidence confirms support for 3.3 V, 2.5 V, and 1.8 V, but it does not identify which supply rail applies to the core and which applies to each I/O bank. Decouple every applicable rail near its package pins using the capacitor values and placement rules specified in the manufacturer datasheet. Do not assume that all outputs can tolerate the maximum input voltage solely because multiple supply configurations are supported; verify every connected signal against its specific bank voltage before schematic release.
The supplied evidence confirms a 48-pin TQFP package but does not publish the numbered pin assignments, so the footprint must be checked against the official package drawing rather than inferred from another LC4064 device. Reserve the configuration interface, clock pins, ground connections, and required test points according to the exact MPN and programming method. Validate the PCB land pattern, solder mask, and assembly tolerances with the current Lattice Semiconductor package data before releasing artwork.
מידע על תאימות
RoHS compliance is reported by the verified ETEI cross-reference material. The supplied data does not explicitly confirm REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 status. Automotive qualification is not indicated for this industrial-programmable logic device.
