LC4032B-5T44I - 32 Macrocell 5 ns CPLD | Lattice
MPN: LC4032B-5T44I ✗ End of Life| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
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LC4032B-5T44I Overview
A CPLD is a user-programmable digital logic device that stores a logic configuration in nonvolatile memory. In the semiconductor hierarchy, a CPLD belongs to programmable logic devices and uses interconnected macrocells to implement Boolean and sequential functions. Compared with a software-driven processor, an LC4032B implementation can execute fixed logic immediately after configuration, while compared with a small FPGA it is organized around a simpler macrocell architecture suited to compact glue logic.
The verified LC4032B data identifies 32 macrocells, 5 ns timing, and a 44-TQFP package as the principal selection parameters. The family description also supports 3.3 V, 2.5 V, and 1.8 V operating environments. In-system programmability permits a design to be configured or updated through its programming path without removing the package from production equipment, provided the board meets the device's stated electrical and pin requirements.
Typical uses include industrial control interfaces, peripheral bus decoding, data acquisition front ends, programmable instrument logic, communication-interface conditioning, and embedded control functions. Its fixed nonvolatile configuration supports repeatable startup behavior because no firmware-driven configuration sequence is required for established logic.
Design work should begin with the manufacturer datasheet because macrocell capacity, dedicated pins, supported I/O standards, timing, power behavior, and programming requirements are not completely characterized by the provided search results. Confirm that every external signal, supply rail, pull state, and programming connection matches the exact datasheet before releasing a PCB.
This page consolidates the verified distributor identification, available source links, package details, and engineering-selection context. It also distinguishes confirmed facts from missing specifications so procurement and design teams can assess fit without relying on unsupported inferred values.
Drop-in alternatives for LC4032B-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 LC4032B-5T44I (same form factor and footprint) — differing in Device Type, Package, Speed Grade.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LC4032B-5T44C
✅ Drop-In✓ In Stock
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View Datasheet →LC4032B-5T44C
✅ Drop-In✓ In Stock
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View Datasheet →LC4032B-75T44I
✅ Drop-In📋 Reference alternative (not in catalog)
LC4032B-75T44C
✅ Drop-In📋 Reference alternative (not in catalog)
LC4032B-7T44I
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LC4032B-5T44I Maximum Ratings & Electrical Characteristics
| Device Type | In-system-programmable SuperFAST high-density PLD |
| Logic Architecture | CPLD |
| Macrocell Count | 32 macrocells |
| Speed Grade | 5 ns |
| Supported Supply Levels | 3.3 V / 2.5 V / 1.8 V |
| Programming Type | In-system programmable |
| Package | 44-TQFP |
| Package Pin Count | 44 pins |
| Mounting Type | Surface mount |
| Operating Temperature Grade | Industrial |
LC4032B-5T44I 44 pins Pin Configuration Guide
Pin configuration for LC4032B-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 LC4032B-5T44I.
Refer to the datasheet for full pin configuration.
Typical Applications
LC4032B-5T44I is suitable for 6 applications: Industrial Control and Interface Logic, Programmable Data-Acquisition Front End, Communication Interface Conditioning, Programmable Test and Measurement Logic, Programmable Signal Routing and Conditioning, Embedded Peripheral Bus Interface.
Industrial Control and Interface Logic
The LC4032B-5T44I fits fixed industrial control functions that combine state-machine logic, input decoding, and output sequencing within a 32-macrocell CPLD. Its verified 5 ns speed grade provides timing headroom for common control paths, while the industrial-temperature ordering suffix makes it the target choice when the product must be specified for industrial environments. Place the device beside the controlled I/O and route protection through suitable discrete components. Before release, verify every 44-pin assignment, I/O threshold, power rail, and timing edge against the Lattice datasheet because those details are not included in the supplied search records.
Recommended
Programmable Data-Acquisition Front End
The LC4032B-5T44I can implement deterministic channel-selection, timing, and interface logic around external converters or sensors. With 32 macrocells and a 5 ns grade, it is appropriate for coordinating control outputs and capturing signals where firmware overhead is undesirable. A practical design uses the CPLD to generate converter triggers, route multiplexers, and latch or route data to a controller. Its 3.3 V, 2.5 V, and 1.8 V family support provides multiple integration levels, but exact core and I/O rail assignments must be confirmed from the manufacturer datasheet before schematic approval.
Recommended
Communication Interface Conditioning
The LC4032B-5T44I is suitable for protocol framing, command decoding, parity generation, and buffer-control functions surrounding a communications transceiver. Its nonvolatile programmable-logic architecture enables repeatable hardware behavior, while the 5 ns speed grade supports short combinational control paths. Designers can partition the 32 macrocells between receive and transmit state machines and use dedicated I/O only after checking the exact pin table. Because programming pins, I/O standards, and timing limits are not supplied in the verified excerpts, prototype timing, signal-integrity, and power-state tests are essential before production release.
Recommended
Programmable Test and Measurement Logic
The LC4032B-5T44I can implement instrument sequencing, pattern generation, and control-state logic close to the analog or mixed-signal front end. Its 32 macrocells provide compact fixed-logic capacity, and its 5 ns grade is relevant to short setup and measurement-control paths. Use the CPLD to coordinate triggers, range selection, data capture, and status reporting rather than to perform numerical processing. Exact maximum clock and I/O specifications remain unverified, so engineers must derive timing margins from the manufacturer datasheet and account for probe loading, board delay, and external-device acquisition time.
Recommended
Programmable Signal Routing and Conditioning
The LC4032B-5T44I can implement deterministic routing, gating, pulse shaping, and format conversion for modest signal-path requirements. Its 5 ns device grade is useful when control paths must settle quickly relative to slower external converters or sensors. A practical implementation places programmed logic between source and destination devices, then uses board-level routing to preserve signal integrity. The verified data does not identify differential I/O standards, I/O drive strength, or input thresholds, so engineers must not assume high-speed LVDS or other interface support without consulting the exact package and electrical tables.
Recommended
Embedded Peripheral Bus Interface
The LC4032B-5T44I can provide address decoding, chip-select generation, read-cycle coordination, and status multiplexing for small embedded systems. Its 32 macrocells are suited to multiple independent logic blocks, while the fixed 5 ns grade simplifies estimation of short bus-control paths. Connect the CPLD directly to the relevant memory or peripheral interface only after checking voltage tolerance and timing against each device. In-system programmability supports configuration updates, but production programming should follow the datasheet-defined controls, voltage, isolation, and timing sequence. A processor remains necessary when software-managed peripherals or dynamic protocols dominate the design.
Recommended
Recommended Products Summary
Engineering reference data for LC4032B-5T44I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LC4032B-5T44C | LC4032B-5T44C | LC4032B-75T44I | LC4032B-75T44C | LC4032B-7T44I |
|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | 44-TQFP | 44-TQFP | 44-TQFP | 44-TQFP | 44-TQFP | 44-TQFP |
| Speed Grade | 5 ns | 5 ns | 5 ns | 7.5 ns | 7.5 ns | 7 ns |
| Temperature Suffix | Industrial | Commercial | Commercial | Industrial | Commercial | Industrial |
| Pin-to-Pin Status | 44-TQFP reference footprint | Same package; final pin confirmation required | Same package; final pin confirmation required | Same package; timing and pin confirmation required | Same package; timing and pin confirmation required | Same family footprint candidate; requires verification |
| Parametric Match | 100% reference | 100% | 100% | 80% | 80% | 70% |
Key Differentiators
- Faster verified timing grade (vs LC4032B-75T44I)
- Industrial temperature ordering suffix (vs LC4032B-75T44C)
- Shorter timing grade within the same package (vs LC4032B-7T44I)
Design Notes
Do not treat a matching 44-TQFP outline as proof of replaceability. Verify the exact pin map, program and configuration controls, supply assignments, I/O thresholds, and unused-pin requirements against the Lattice datasheet. A slower LC4032B speed grade may change timing closure rather than preserve it, while a commercial temperature suffix may not satisfy the environmental requirements of an industrial design.
Define external interfaces with the datasheet's supported voltage standards, drive strength, input thresholds, and timing limits before assigning pins. Keep clocks and fast state-machine outputs short, provide return paths for high-speed signals, and place decoupling and termination where the device-specific electrical data require them. The supplied search excerpts do not identify differential I/O capability, so LVDS or other high-speed interfaces must not be assumed.
Reserve the manufacturer's programming interface and follow its voltage, isolation, and update-sequence requirements. Plan test points for configuration, power rails, and critical clocks so board bring-up does not require rework. Confirm land pattern, pin-1 orientation, exposed-pad or thermal requirements, and assembly tolerances against the package drawing rather than relying only on a generic 44-TQFP library symbol.
Compliance Information
The supplied LC4032B-5T44I records do not include manufacturer declarations for environmental or material-compliance status. The industrial-temperature I suffix does not establish AEC-Q100 qualification.
