LC4064B-5T44I - 64-Macrocell 5ns In-System CPLD | Lattice
MPN： LC4064B-5T44I ✓ 啟用中LC4064B-5T44I 概覽
A complex programmable logic device, or CPLD, is a programmable-logic semiconductor positioned between fixed-function logic and FPGA implementation. A CPLD uses interconnected macrocells to implement Boolean equations, state machines, counters, interfaces, and control logic. Because LC4064B configurations are retained in non-volatile memory, the logic continues operating without a configuration device after programming.
The LC4064B-5T44I's headline characteristics are its 64 macrocells, 5 ns speed grade, 44-pin TQFP package, and support for 3.3 V, 2.5 V and 1.8 V supply voltages. The 5 ns grade is intended for designs requiring faster combinational and clocked logic than slower commercial alternatives. Its 44-pin package also offers a smaller board footprint than many high-pin-count PLD packages.
The in-system programming capability allows the device to be configured through its programming interface while connected to the target circuit. This supports production programming, field updates, and design revisions without removing the IC from the board. The manufacturer classifies the LC4064B family as a SuperFAST high-density PLD, indicating an architecture aimed at higher logic density and performance than the original Lattice CPLD generation.
Typical uses include industrial control, data-acquisition systems, communication equipment, test and measurement instruments, embedded control, interface logic, and general-purpose glue logic. The device is particularly appropriate when a design needs a stable 5 ns timing grade, retained configuration, and programmable logic without the resource requirements of a larger FPGA.
Designers should verify the exact pinout, supported I/O standards, bank supply requirements, AC timing characteristics, and configuration interface against the manufacturer datasheet before layout release. Because the available verified results identify the package and basic device characteristics but do not provide the complete electrical tables or pin assignments, those details remain to be confirmed rather than inferred.
This page consolidates the verified distributor descriptions, source links, application-oriented engineering guidance, and clearly identified data gaps for LC4064B-5T44I. It adds practical selection context without presenting unverified electrical limits, pricing, or pin assignments as manufacturer facts.
直接替換替代品，適用於 LC4064B-5T44I — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： LC4064B-5T44I （相同外形與佔位）.
LC4064B-7T44I
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LC4064B-10T44I
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LC4064B-5T44C
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →LC4064B-7T44C
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LC4064B-10T44C
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
LC4064B-5T44I 最大額定值與電氣特性
| Device Type | Complex programmable logic device (CPLD) |
| Architecture | SuperFAST high-density PLD |
| Macrocell Count | 64 macrocells |
| Speed Grade | 5 ns |
| Supported Supply Voltages | 3.3 V, 2.5 V and 1.8 V |
| Configuration Method | In-system programmable |
| Configuration Retention | Non-volatile |
| 封裝 | 44-pin TQFP |
| Terminal Count | 44 terminals |
| Package Shape | Square |
| Lead Style | Gull wing |
| 安裝類型 | Surface mount |
| Peak Reflow Time | 30 s maximum |
LC4064B-5T44I square 腳位配置指南
LC4064B-5T44I（square 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： LC4064B-5T44I.
請參閱 資料表 以查看完整腳位配置。
典型應用
LC4064B-5T44I 適用於 6 應用s: Industrial Control Logic, Data-Acquisition Interface, Communication Equipment Control, Test and Measurement Equipment, Embedded System Interface Logic, Automotive and Harsh-Environment Logic.
Industrial Control Logic
The LC4064B-5T44I is suitable for implementing sequencing, interlocks, motor-command logic, and sensor-conditioning glue logic in industrial control boards. Its 64 macrocells provide a substantial programmable-logic area for consolidating Boolean functions that would otherwise occupy multiple fixed logic devices. The 5 ns speed grade supports timing-sensitive control paths, while the 44-pin TQFP package limits board area. Its support for 3.3 V, 2.5 V and 1.8 V operation also permits integration with multiple logic voltage domains. Before schematic release, engineers should confirm the required I/O standard, bank supply arrangement, and worst-case timing against the manufacturer datasheet.
推薦
Data-Acquisition Interface
The LC4064B-5T44I can implement data capture control, channel multiplexing, strobe generation, status encoding, and test-sequence logic around an ADC or data-conversion subsystem. With 64 macrocells and a 5 ns speed grade, it is appropriate for coordinating deterministic control paths rather than performing the high-volume conversion itself. Non-volatile configuration allows the acquisition controller to operate immediately after power-up, while in-system programming permits board-level updates. Practical implementation still requires verification of input timing, output-drive limits, and acquisition-interface voltage levels because those values are not contained in the verified distributor excerpts.
推薦
Communication Equipment Control
The LC4064B-5T44I can serve as a control and framing CPLD in communication equipment where parallel data must be converted into sequential operations, status flags must be generated, or multiple clock domains must be coordinated. Its 64 macrocells permit consolidated logic for finite-state machines, byte alignment, interrupt masking, and command parsing. The 5 ns grade offers a higher performance option than slower family members, while the TQFP-44 package supports compact PCB designs. Exact input synchronization, I/O voltage, and maximum clock information must be checked in the official datasheet, and any proposed replacement must preserve the footprint and device architecture.
推薦
Test and Measurement Equipment
The LC4064B-5T44I is appropriate for programmable test sequencers, instrument control, timing generators, status encoders, and front-panel logic in test and measurement systems. Its 64 macrocells can implement several control blocks while the 5 ns speed grade supports short propagation delays in timing-sensitive paths. Non-volatile configuration lets the instrument retain its test logic after power cycling, and the compact 44-pin TQFP package leaves board space for analog and signal-conditioning circuitry. Because the verified information does not include the complete timing tables or I/O tables, engineers must validate timing margins, output standards, and power-supply sequencing before production release.
推薦
Embedded System Interface Logic
The LC4064B-5T44I can consolidate bus decoding, interrupt control, address decoding, display handling, and peripheral interconnect logic around an embedded microcontroller. The 64-macrocell capacity is useful when a design requires more deterministic programmable logic than a microcontroller GPIO assignment can provide without increasing MCU complexity. The 5 ns grade supports faster control paths, and operation from 3.3 V, 2.5 V or 1.8 V allows integration with several generations of embedded logic. Designers should verify supply-bank topology, I/O direction, and timing against the exact datasheet, especially when the CPLD interfaces directly with a 1.8 V microcontroller.
推薦
Automotive and Harsh-Environment Logic
The industrial-temperature LC4064B-5T44I variant can be considered for non-safety-critical vehicle or industrial subsystems that need retained programmable logic, including panel logic, diagnostic sequencing, sensor-interface control, and communication adaptation. Its 5 ns speed grade and 64 macrocells provide useful timing and logic-density headroom, while the TQFP-44 package supports conventional surface-mount assembly. Automotive use must not be inferred automatically from the industrial suffix; the manufacturer qualification status, temperature limits, AEC-Q100 applicability, and any automotive-specific requirements must be verified separately. A replacement should preserve the package, logic architecture, configuration method, and required timing grade.
推薦
推薦產品摘要
此產品無常見問題。
工程參考資料，適用於 LC4064B-5T44I — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | LC4064B-7T44I | LC4064B-10T44I | LC4064B-5T44C | LC4064B-7T44C | LC4064B-10T44C |
|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP |
| Device Type | CPLD | CPLD | CPLD | CPLD | CPLD | CPLD |
| Macrocell Count | 64 macrocells | 64 macrocells | 64 macrocells | 64 macrocells | 64 macrocells | 64 macrocells |
| Speed Grade | 5 ns | 7 ns | 10 ns | 5 ns | 7 ns | 10 ns |
| Temperature Suffix | I | I | I | C | C | C |
| Terminal Count | 44 terminals | 44 terminals | 44 terminals | 44 terminals | 44 terminals | 44 terminals |
主要差異化特點
- Faster nominal timing grade within the same LC4064B family (對比LC4064B-10T44I)
- Industrial temperature suffix (對比LC4064B-5T44C)
- Same-package migration without changing logic density (對比LC4064B-7T44C)
設計說明
Reserve the manufacturer-specified 44-pin TQFP land pattern, including pin-1 orientation, and verify that the PCB library uses the same T44 package dimensions as the selected supplier. Keep the programming interface and any configuration-control pins accessible for manufacturing and field updates. Because the verified excerpts confirm a 44-terminal square TQFP but do not publish the complete footprint drawing, do not scale the footprint from visual package imagery; obtain the recommended land pattern from the manufacturer documentation.
Design the power rails for 3.3 V, 2.5 V or 1.8 V operation according to the configured supply-bank arrangement specified in the datasheet. Decouple each applicable supply rail locally with the manufacturer-recommended capacitance and place the components close to the associated pins. Validate startup, input-voltage tolerance, output-drive behavior, and mixed-voltage interfacing before schematic release because the verified data identifies supported nominal voltages but not complete power-supply limits.
Use the device's 5 ns speed grade as a timing-selection cue, not as a complete timing guarantee. Analyze setup, hold, clock skew, combinational delay, and output propagation using the manufacturer AC tables for the selected voltage and temperature conditions. Slow-pin alternatives in the same family may fit the footprint electrically but can reduce available timing margin, so a nominal pin-compatible substitution still requires sign-off against the original worst-case timing path.
Do not treat the I or C suffix as interchangeable without checking the official temperature-range table. Likewise, verify that a proposed replacement retains non-volatile configuration, 64 macrocells, the required programming protocol, and the same pin assignment. The verified search results identify the LC4064B family as an in-system-programmable SuperFAST high-density PLD, but they do not supply the complete electrical tables, so substitute parts require datasheet-level review.
合規資訊
The verified search results provide product descriptions, inventory, package data, and source links but do not explicitly state compliance for this MPN. Compliance must be confirmed from the manufacturer product page or declaration.