LC4064B-5T44C - 64-Macro 5ns ISP CPLD | Lattice Semiconductor
部品番号: LC4064B-5T44C ✗ 生産終了LC4064B-5T44C 概要
A CPLD is a programmable logic device that combines programmable AND/OR logic structures with nonvolatile configuration storage. Within the semiconductor hierarchy, a CPLD is a programmable-logic IC, a member of the FPGA and CPLD category, and a practical alternative to a small FPGA when designs require straightforward combinational and sequential logic, deterministic configuration, and a modest pin count. The LC4064B family specifically targets high-density SuperFAST applications where board-level control and interface logic must be consolidated without using a large programmable-logic device.
Verified device information identifies 64 macro cells, a 5 ns speed designation, a 44-TQFP package, and in-system programming capability. The family description also confirms compatibility with 3.3 V, 2.5 V, and 1.8 V supply environments. In-system programming allows a board designer to configure or update the logic after PCB assembly, while the TQFP package supports conventional surface-mount assembly and inspection. Exact logic macro architecture, I/O counts, electrical limits, and timing tables are not present in the supplied records and must be confirmed in the manufacturer datasheet before design release.
The LC4064B-5T44C is positioned for designs that need more logic density and a faster speed grade than slower Lattice CPLD options without moving to a substantially different device family. Its 64 macro cells provide a defined capacity for control-state machines, address decoding, bus arbitration, signal conditioning, and peripheral interfacing. Because the available records do not include the complete timing tables or I/O standards, system timing should be evaluated against the datasheet rather than inferred solely from the 5 ns family speed designation.
Typical uses include industrial control logic, embedded peripheral interfaces, compact communications equipment, instrumentation, and general-purpose digital system support. A CPLD can consolidate decoding and control functions that would otherwise occupy several fixed-function ICs. It can also provide a stable interface between a microcontroller, memory, display controller, or communication peripheral, provided the device voltage, pin assignment, timing, and I/O standards are compatible with the surrounding circuit.
The main design consideration is verification of the exact package pinout and electrical limits before layout. Designers should confirm which pins support in-system programming, determine the required VCC levels, and check every connected I/O against the LC4064B datasheet. Because no authoritative pin-by-pin pinout was included in the supplied data, the pinout field is intentionally null rather than reproducing unverified pin names.
This page consolidates verified distributor identifiers, package and speed information, sourcing links, replacement constraints, and practical selection guidance that are not available from a simple distributor search result alone. It also distinguishes verified facts from unavailable electrical details, helping engineers evaluate LC4064B-5T44C without mistaking generic CPLD assumptions for device-specific specifications.
ドロップイン代替品: LC4064B-5T44C — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: LC4064B-5T44C （同一形状・フットプリント） — 相違点: Package.
LC4064V-5T44C
✅ ドロップイン価格はお問い合わせください
データシートを見る →LC4064B-5T44I
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →LC4064B-6T44C
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
LC4064B-5T44C 最大定格＆電気的特性
| Device Type | Complex programmable logic device (CPLD) |
| Series | ispMACH 4000B SuperFAST high-density PLD |
| Logic Macro Count | 64 macro cells |
| Speed Grade | 5 ns |
| Programming | In-system programmable |
| Supported Supply Levels | 3.3 V, 2.5 V, and 1.8 V |
| パッケージ | 44-pin TQFP |
| 実装タイプ | Surface mount |
LC4064B-5T44C 44-pin tqfp ピン配置ガイド
LC4064B-5T44C (44-pin tqfp パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: LC4064B-5T44C.
詳細は データシート をご参照ください。
主な用途
LC4064B-5T44C の用途: 6 件s: Industrial Control and State-Machine Logic, Embedded Peripheral Interface Consolidation, Communications Equipment Signal Routing, Instrumentation and Measurement Control, LED Display and System Sequencing, Programmable Interface and Bus Arbitration.
Industrial Control and State-Machine Logic
The LC4064B-5T44C fits compact industrial control boards that need deterministic programmable logic for sequencing, interlocks, command decoding, and state transitions. Its verified 64 macro cells provide a defined logic capacity, while the 5 ns speed designation is useful when control paths must operate closer to the system clock than basic slow glue logic. A designer can place the CPLD beside a microcontroller or DSP to offload deterministic sequencing while retaining software control of higher-level functions. Before layout, verify the I/O count, voltage, operating temperature, and timing from the manufacturer datasheet because those details are not included in the supplied records.
おすすめ
Embedded Peripheral Interface Consolidation
The LC4064B-5T44C is useful when a system must combine address decoding, chip-select generation, bus arbitration, and peripheral interfacing without adding numerous fixed-function logic ICs. The 64 available macro cells provide a concentrated implementation area, and in-system programming allows the interface behavior to be updated after board assembly. Its 44-pin TQFP package also provides a smaller pin count than many higher-density programmable-logic options. The designer must confirm that every connected peripheral uses compatible supply and I/O standards and that the device's configuration pins are accessible on the PCB.
おすすめ
Communications Equipment Signal Routing
The LC4064B-5T44C can support communications equipment requiring programmable routing, framing control, parity or checksum assistance, and status decoding. Its 5 ns speed designation provides a higher performance margin than slower CPLD grades, making it potentially suitable for control paths near a communication controller. The CPLD can offload deterministic protocol support while a microcontroller or DSP handles configuration and higher-level processing. Designers should verify propagation-delay tables, available user I/O, and I/O voltage tolerance before selecting the device for a specific interface standard.
おすすめ
Instrumentation and Measurement Control
In instrumentation equipment, the LC4064B-5T44C can consolidate trigger logic, mode sequencing, range selection, and data-acquisition control around a processor. The 64-macro capacity is appropriate for moderate glue-logic requirements, while in-system programming simplifies configuration maintenance and board-level updates. A measurement system can use the CPLD to coordinate sensor selection, trigger routing, and status indicators without loading the host processor with every deterministic transition. The complete input thresholds, output-drive ratings, and analog-interface timing are not provided in the verified records and must be checked against the datasheet.
おすすめ
LED Display and System Sequencing
The LC4064B-5T44C can implement display scan sequencing, indicator timing, keypad scanning, and system-state logic in compact embedded systems. The 5 ns speed grade offers useful timing margin for synchronous scan and multiplexing functions, while 64 macro cells allow several control functions to be consolidated. It can complement a display controller or application processor by taking over repetitive update sequencing and input scanning. Engineers should verify the number of usable I/O pins, supported I/O standards, and output-drive capability because the supplied records identify only the 44-pin TQFP package and macro count.
おすすめ
Programmable Interface and Bus Arbitration
The LC4064B-5T44C is appropriate for bus arbitration, address decode, interrupt routing, and crossbar-like control in embedded equipment. Its 64 macro cells offer enough capacity for multiple related interface functions, and the 5 ns class designation helps preserve timing margin in synchronous systems. A microcontroller or DSP can retain high-level control while the CPLD handles deterministic access sequencing and peripheral selection. Before layout, confirm signal count, voltage compatibility, timing margins, and whether the selected family variant supports the intended I/O standard.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: LC4064B-5T44C — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | LC4064V-5T44C | LC4064B-5T44I | LC4064B-6T44C |
|---|---|---|---|---|
| Package | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP | 44-pin TQFP |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Speed Designation | 5 ns | 5 ns | 5 ns | 6 ns |
| Device Type | In-system-programmable CPLD | CPLD | In-system-programmable CPLD | In-system-programmable CPLD |
主な差別化要因
- Faster speed designation within the same Lattice family （vs LC4064B-6T44C)
- Standard-temperature ordering option （vs LC4064B-5T44I)
- Verified in-system-programmable 4000B family member （vs LC4064V-5T44C)
設計ノート
Do not treat the 5 ns speed designation as a complete timing specification. Before using the LC4064B-5T44C in a synchronous design, obtain the manufacturer timing tables and verify clock period, setup time, hold time, propagation delay, and I/O delay for the actual pin and logic path. Also confirm that the 44 package pins provide enough usable I/O after accounting for power, ground, and configuration functions.
Reserve routing access to all configuration and programming pins required by the chosen in-system programming method. Place the device so that its power and ground connections use short, low-impedance paths, and follow the datasheet layout guidance for decoupling. Since the supplied records do not contain a verified pinout, do not freeze the PCB footprint from distributor search snippets; cross-check pin 1, power distribution, ground distribution, and exposed-package details against the manufacturer drawing.
Determine the actual supply configuration for the LC4064B-5T44C rather than assuming that all 3.3 V, 2.5 V, and 1.8 V family options apply identically to every pin bank. Verify core and I/O voltage requirements, input thresholds, output drive, and decoupling values in the datasheet. Level translation may be necessary if connected logic uses a voltage outside the selected I/O bank.
A shared 44-TQFP package does not by itself guarantee drop-in compatibility. For LC4064V-5T44C, LC4064B-5T44I, or LC4064B-6T44C, compare pin assignment, configuration interface, resource allocation, I/O standards, supply pins, and timing. In particular, the 6 ns variant is 20% slower by its family speed designation and may fail timing paths that close at the 5 ns grade.
コンプライアンス情報
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements were included in the verified data. These fields remain unknown rather than being inferred from the manufacturer name or device age.