LC4032C-5T44I - 32-Macrocell 400MHz CPLD | Lattice
MPN: LC4032C-5T44I ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LC4032C-5T44I Overview
A CPLD is a complex programmable logic device: a user-programmable semiconductor that combines programmable logic structures with a defined pin architecture. Within the broader FPGA & CPLD category, a CPLD is generally selected when deterministic timing, in-system programmability, compact logic integration, and a straightforward package are more important than the very high logic density of an FPGA. The LC4032C belongs to Lattice's ispMACH 4000 family and supports 3.3V, 2.5V, and 1.8V supply options.
The verified device data identifies up to four global clock pins with programmable clock polarity control, routing to as many as 80 physical outputs. Its -5 speed designation is associated with the published 400MHz maximum operating frequency and 2.5ns propagation-delay class. The -5T44I ordering information identifies the package and industrial-temperature ordering variant, although the exact numeric temperature limits and package dimensions were not supplied in the verified excerpts.
The LC4032C-5T44I is useful for control logic, bus decoding, state machines, interface glue, clock-domain-adjacent control functions, and general-purpose signal processing that benefits from deterministic CPLD timing. In-system programming allows a board to be configured or reconfigured without removing the device, supporting production programming, field updates, and logic revisions when the system architecture is designed for it.
Designers should preserve the device's documented power, clock, programming, and decoupling requirements from the full LC4032C datasheet. Treat every clock distribution, output enable, and I/O standard as a timing-constrained path, and verify unused pins, signal integrity, and power sequencing before release. Because only verified excerpts were supplied, exact I/O counts, memory details, supply-current limits, temperature range, and package dimensions remain marked for data completion rather than being inferred.
This page combines verified product facts, sourcing evidence, application guidance, and replacement constraints. It deliberately avoids unverified cross-brand claims: the supplied web results confirm the device and its family characteristics but do not establish a qualified, pin-compatible replacement in the same TQFP package.
Drop-in alternatives for LC4032C-5T44I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LC4032C-5T44I (same form factor and footprint) — differing in Architecture, Device Type, Macrocells.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesLC4032C-5T44I Maximum Ratings & Electrical Characteristics
| Device Type | In-system programmable SuperFAST high-density PLD |
| Architecture | Complex programmable logic device |
| Macrocells | 32 |
| Maximum Operating Frequency | 400 MHz |
| Propagation Delay | 2.5 ns |
| Supply Voltage Options | 3.3 V, 2.5 V, and 1.8 V |
| Global Clock Inputs | Up to 4 |
| Programmable Clock Polarity | Yes |
| Maximum Clock Outputs | 80 PTs per output |
| Package Type | TQFP PLD |
| Package Pin Count | 44 pins |
| Temperature Grade | Industrial |
| Programming | In-system programmable |
| Logic Family | ispMACH 4032B |
| Series | ispMACH 4000 |
LC4032C-5T44I 44 pins Pin Configuration Guide
Pin configuration for LC4032C-5T44I (44 pins package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for LC4032C-5T44I.
Refer to the datasheet for full pin configuration.
Typical Applications
LC4032C-5T44I is suitable for 6 applications: Industrial control and state-machine logic, High-speed bus and protocol decoding, Clocked interface and data capture control, Instrumentation and measurement control, Programmable embedded control and board logic, Programmable signal routing and test-point control.
Industrial control and state-machine logic
The LC4032C-5T44I is a reasonable fit for compact control logic because the verified datasheet identifies 32 macrocells, in-system programmability, and a 400MHz maximum operating frequency. Its CPLD structure is useful when a controller needs deterministic combinational and sequential logic near sensors, actuators, relays, or machine-control interfaces. The -5T44I ordering variant is identified as industrial, but the exact temperature limits should be confirmed before deployment. Because a CPLD has finite resources, the design team should map every state, register, clock, and output requirement before schematic capture. In-system programming can simplify production configuration and field updates when the board exposes the supported programming interface.
Recommended
High-speed bus and protocol decoding
For bus decoding and protocol glue, the LC4032C-5T44I combines a CPLD architecture with a verified 2.5ns propagation-delay class and programmable clock polarity. These characteristics make it useful for interpreting control signals, generating enables, matching timing windows, and implementing stateful interfaces close to higher-level logic. The part supports 3.3V, 2.5V, and 1.8V supply options, but each external interface must still be checked against the actual I/O limits and standards in the datasheet. Use the design tool to constrain every input-to-output path and register boundary. In-system programming is valuable when a protocol variant or board revision changes the decoder without changing the PCB footprint.
Recommended
Clocked interface and data capture control
The LC4032C-5T44I can serve as a clocked control block when a system needs synchronized enables, programmable polarity, and deterministic sequencing around an external data path. The verified source identifies up to four global clock inputs, programmable clock polarity control, and routing to up to 80 PTs per output, while the maximum operating frequency is stated as 400MHz. Those facts support centralized timing and control, but they do not guarantee a particular high-speed memory interface. Designers should define clock domains, account for skew and setup/hold requirements, and constrain all external paths. Verify the complete I/O and timing tables before using the CPLD as a substitute for a dedicated interface controller.
Recommended
Instrumentation and measurement control
In instrumentation and measurement equipment, the LC4032C-5T44I can centralize trigger generation, range-control decoding, status multiplexing, and timing-sensitive logic. Its 32 macrocells and 400MHz maximum operating frequency provide a compact implementation path for control logic that must coordinate analog or mixed-signal front ends, while in-system programming allows calibration or measurement-mode updates to be loaded without changing the component. The supplied data does not specify analog inputs or precision timing, so the CPLD should remain a digital controller rather than be treated as an ADC or analog measurement front end. Review clock jitter, output loading, grounding, and decoupling in the system design. Confirm the full package pinout and supply constraints in the manufacturer datasheet.
Recommended
Programmable embedded control and board logic
The LC4032C-5T44I is useful when an embedded board needs flexible glue logic between a processor, memory, connectors, and peripherals. The verified 32-macrocell CPLD can consolidate decode functions, interrupt or reset sequencing, bus arbitration, and programmable interface behavior in one TQFP PLD package. Its 3.3V, 2.5V, and 1.8V supply options support mixed-voltage system planning, although each rail-to-rail interface still requires verification. In-system programming helps maintain design flexibility during hardware bring-up and product revisions. Because the provided excerpts do not state the complete pin map or I/O electrical limits, schematic and layout reviews must be based on the manufacturer datasheet rather than the order code alone.
Recommended
Programmable signal routing and test-point control
The LC4032C-5T44I can implement programmable routing, muxing, and test-control logic for systems that benefit from field-configurable behavior. The CPLD's verified maximum operating frequency of 400MHz and 2.5ns propagation-delay class allow deterministic logic to be placed beside connectors or test interfaces, while programmable clock polarity supports controlled timing relationships. A design can use the CPLD to select signal paths, generate enables, or coordinate production test modes without changing the main processor firmware. The available macrocell and I/O resources must be mapped first; the supplied excerpts identify 32 macrocells but do not provide the full pin or resource tables. Validate timing, pin standards, and programming access against the full datasheet.
Recommended
Recommended Products Summary
Engineering reference data for LC4032C-5T44I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | TQFP PLD, 44-pin ordering designation |
| Brand | Lattice Semiconductor |
| Device Type | Complex programmable logic device |
| Macrocells | 32 |
| Maximum Operating Frequency | 400 MHz |
| Propagation Delay | 2.5 ns |
| Supply Voltage Options | 3.3 V, 2.5 V, and 1.8 V |
| Global Clock Inputs | Up to 4 |
| Clock Polarity | Programmable |
| Programming | In-system programmable |
| Temperature Grade | Industrial |
| Drop-In Replacement | No verified candidate in supplied data |
Key Differentiators
- Deterministic CPLD implementation with verified high-speed timing class (vs Generic 44-pin CPLD candidates)
- In-system programmability for configuration flexibility (vs Non-reprogrammable or externally configured logic devices)
- Programmable clock polarity and multiple global clock inputs (vs Simpler fixed-clock logic implementations)
- Compact 32-macrocell resource target (vs Larger FPGA or CPLD implementations)
Design Notes
Do not infer a replacement from the 44-pin package designation alone. Before reusing an existing PCB, compare the exact manufacturer pinout, power and ground pins, configuration interface, clock pins, I/O standards, and macrocell architecture. The verified data identifies the LC4032C-5T44I as a 32-macrocell ispMACH 4032B CPLD, but no cross-brand or same-brand drop-in candidate was confirmed. A substitute should be accepted only after schematic review, static timing analysis, simulation, and board-level testing.
Design the supply rails and decoupling around the manufacturer’s complete electrical tables. The verified excerpt confirms 3.3V, 2.5V, and 1.8V support options, but it does not provide current limits, voltage tolerances, or recommended capacitor values. Do not assume that every I/O can tolerate every neighboring voltage. Verify core and I/O supply requirements, power sequencing, ground return paths, and signal amplitudes in the full datasheet before finalizing the PCB.
Treat the LC4032C-5T44I clock and data routes as constrained interfaces. The device has up to four global clock inputs with programmable clock polarity and a verified maximum operating frequency of 400MHz, so routing, loading, jitter, and edge quality can affect timing margin. Use the design tool for static timing analysis, define clock constraints explicitly, keep sensitive routes away from noisy power and switching nodes, and validate edge rates and loading at the actual receiver rather than relying only on nominal clock frequency.
Place programming, clock, and decoupling connections so they remain predictable during both laboratory bring-up and production programming. Follow the manufacturer’s package drawing and land pattern rather than reconstructing the TQFP-44 footprint from the MPN suffix. Check pin 1 orientation, exposed thermal or mechanical features if applicable, and ground connectivity with the assembly house. Because the supplied excerpts do not include the complete package drawing, final CAD release must be checked against the official mechanical documentation.
Compliance Information
The supplied verified excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The -5T44I ordering suffix is described as an industrial-temperature variant, but this is not a substitute for qualification evidence.
