LC4064B-5T48C - 64-Macrocell 400 MHz CPLD | Lattice
料号： LC4064B-5T48C ✓ 量产中LC4064B-5T48C 概述
A complex programmable logic device, or CPLD, belongs to the FPGA and CPLD branch of programmable-logic semiconductors. Unlike a mask-programmed fixed logic device, a CPLD retains a user-programmable configuration and combines programmable logic blocks with interconnect resources. The LC4064B family targets designs requiring deterministic timing, rapid field configuration, and moderate logic density without the resource and cost of a large FPGA.
Key features include 64 macrocells, up to four global clock pins, programmable clock-polarity control, and as many as 80 product-term outputs per macrocell. Its 400 MHz maximum operating frequency and 2.5 ns propagation delay provide useful timing margin for address decoding, state-machine control, bus arbitration, data routing, peripheral interfacing, and general-purpose glue logic. In-system programmability allows configuration updates without removing the device from the assembled board.
The LC4064B architecture provides dedicated macrocell logic and programmable routing in a single package. Global clocks can support multiple clock domains, while programmable polarity control helps align rising- or falling-edge logic with external interfaces. Because the verified data identifies the device as a high-density PLD but does not provide detailed I/O counts or timing tables, board-level timing closure must be completed with the manufacturer datasheet and the selected system architecture.
Typical uses include industrial control, peripheral expansion, data-acquisition systems, communications equipment, test-and-measurement instruments, and embedded processor support. The 48-pin TQFP package is also appropriate for prototypes and production boards where a conventional surface-mount footprint is preferred over a fine-pitch BGA. Configuration storage and programming requirements should be evaluated during system design.
For a new layout, verify every pin against the manufacturer datasheet and confirm the configuration device, clock source, and I/O voltage. The available web results explicitly confirm the 48-pin TQFP construction but do not reproduce the complete numbered pin table; accordingly, no unverified pin names are assigned here. Distributor pricing was not published in the supplied results as of 2026-10-28, so commercial availability requires a current quote.
This page consolidates the verified 400 MHz performance, 2.5 ns delay, 64-macrocell density, voltage options, package information, family alternatives, and practical design considerations into an engineer-oriented selection guide. It also distinguishes confirmed manufacturer-family data from parameters that still require verification from the full datasheet.
直接替换替代料： LC4064B-5T48C ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LC4064B-5T48C （相同外形与封装尺寸） ——差异在于 Logic Family, Supported Supply Voltages.
LC4064B-5T48I
✅ 直接替换联系询价
查看数据手册 →LC4064V-75TN48C
✅ 直接替换📋 参考替代料（不在目录中）
LC4064ZE-7TN48I
✅ 直接替换📋 参考替代料（不在目录中）
LC4064B-4T48C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LC4064B-6T48C
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LC4064B-5T48C 最大额定值与电气特性
| Device Type | In-System Programmable SuperFAST High-Density PLD |
| Macrocell Count | 64 macrocells |
| Maximum Operating Frequency | 400 MHz |
| Propagation Delay | 2.5 ns |
| Supported Supply Voltages | 3.3 V, 2.5 V, and 1.8 V |
| Configuration Method | In-system programmable |
| Global Clock Pins | Up to 4 pins |
| Clock Polarity Control | Programmable |
| Product-Term Outputs per Macrocell | Up to 80 PTs per output |
| Package Type | 48-pin TQFP |
| 引脚数量 | 48 pins |
| 安装类型 | Surface mount |
| Logic Family | SuperFAST high-density PLD family |
| Programmable Logic Type | Complex programmable logic device (CPLD) |
LC4064B-5T48C 48-pin tqfp 引脚配置指南
LC4064B-5T48C（48-pin tqfp 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： LC4064B-5T48C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LC4064B-5T48C 适用于 6 应用s: Industrial Control Logic, Processor Peripheral Interface, Data Acquisition Interface, Communications Equipment Control, Test and Measurement Control, Embedded System Glue Logic.
Industrial Control Logic
The LC4064B-5T48C fits industrial control blocks that require deterministic combinational and sequential logic without a large FPGA. Its 64 macrocells support compact state machines, interlocks, command decoding, and discrete control functions, while the 400 MHz maximum operating frequency and 2.5 ns propagation delay provide timing margin for common control paths. The four global clock inputs can organize related sequential sections with programmable polarity. Because the verified data does not provide the complete I/O count or temperature range, the implementation must be checked against the exact 48-pin TQFP datasheet before assigning industrial field I/O.
推荐
Processor Peripheral Interface
The LC4064B-5T48C is useful when a processor needs additional address decode, chip-select generation, interrupt routing, or protocol-state logic. Its 64 macrocells can consolidate multiple fixed-interface functions, and the 400 MHz maximum operating frequency is substantially above many low-speed peripheral buses. The 2.5 ns propagation-delay specification also supports tightly timed control paths around a host processor. Use one global clock where the host interface is synchronous, reserve other globals only after checking timing, and validate that the selected voltage and I/O standards match the processor and attached peripherals.
推荐
Data Acquisition Interface
The LC4064B-5T48C can implement deterministic acquisition-control logic, channel multiplexing sequences, trigger qualification, and data-routing functions in instrumentation systems. Its 64 macrocells are appropriate for moderate fan-out and control density, while the 400 MHz maximum operating frequency allows acquisition state machines to operate well above typical slow sensor-interface rates. The 48-pin TQFP package simplifies prototyping and conventional surface-mount assembly. Exact input thresholds, output-drive capability, and available user I/O must be verified from the datasheet because those values are not present in the supplied web snippets.
推荐
Communications Equipment Control
The LC4064B-5T48C is suitable for communications equipment that needs deterministic framing, command parsing, channel selection, or interface timing around higher-level processors. Its 64 macrocells support compact protocol state machines and routing logic, while up to four global clocks can support related receive, transmit, and service domains with programmable polarity. The 2.5 ns propagation delay provides useful margin for short combinational paths and registered transfers. Before implementation, confirm the device's I/O standard and timing against the actual communications transceiver, and avoid assuming that another LC4064 suffix has identical voltage or timing behavior.
推荐
Test and Measurement Control
The LC4064B-5T48C can implement sequencers, instrument-control decoding, trigger paths, and front-panel logic where predictable timing is more important than very high programmable-logic density. The 64 macrocells allow several compact control channels to coexist, and the 400 MHz maximum operating frequency supports high-speed state transitions. Programmable clock polarity allows clocking to be aligned with the polarity used by counters, latches, or external test logic. The verified data does not state the operating-temperature grade or complete pinout, so both environmental suitability and unused-pin behavior require direct datasheet confirmation.
推荐
Embedded System Glue Logic
The LC4064B-5T48C is appropriate for glue logic that expands a microcontroller or DSP footprint with address decoding, multiplexing, latch controls, arbitration, and boot sequencing. Its 64 macrocells provide more room than a handful of discrete gates, while in-system programmability allows corrections without board respinning. The 48-pin TQFP footprint supports conventional PCB assembly and inspection. At 400 MHz maximum operating frequency and 2.5 ns propagation delay, the device can handle high-speed control paths, but designers should preserve configuration access and validate every I/O voltage against the connected embedded subsystem.
推荐
推荐产品汇总
工程参考数据： LC4064B-5T48C ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LC4064B-5T48I | LC4064V-75TN48C | LC4064ZE-7TN48I | LC4064B-4T48C | LC4064B-6T48C |
|---|---|---|---|---|---|---|
| Package | 48-pin TQFP | 48-pin TQFP - same | 48-pin TQFP - same | 48-pin TQFP - same | 48-pin TQFP - same | 48-pin TQFP - same |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Device Series | LC4064B | LC4064B | LC4064V | LC4064ZE | LC4064B | LC4064B |
| Speed Designation | -5 | -5 | -75 | -7 | -4 | -6 |
关键差异点
- Highest-speed timing grade among the specifically compared LC4064B candidates （对比 LC4064B-4T48C)
- Same speed designation with a different package temperature suffix （对比 LC4064B-5T48I)
- Directly verified 64-macrocell resource density （对比 LC4064ZE-7TN48I)
- Multi-voltage in-system-programmable family support （对比 LC4064V-75TN48C)
设计说明
Do not treat every LC4064 suffix as electrically identical. The target uses a -5 speed designation and a C package suffix, while alternatives include different series, speed grades, and temperature designations. Before substituting a device, compare the complete numbered pin table, core supply requirements, I/O voltage options, configuration pins, and AC timing tables. The supplied web results establish the shared 48-pin TQFP construction for the listed candidates, but they do not prove identical configuration behavior or timing.
Determine the actual core and I/O supply arrangement from the full manufacturer datasheet before connecting the 48-pin TQFP. The family supports 3.3 V, 2.5 V, and 1.8 V operation, but those figures do not by themselves identify which supply pins may be tied together or which voltage applies to every I/O bank. Use the exact recommended decoupling network, power-up ordering, and configuration requirements shown in the datasheet and reference design. In-system programmability should not be interpreted as permission to violate supply sequencing.
Route all four available global-clock inputs with controlled impedance, short stubs, and solid return paths. Although the device is rated up to 400 MHz, the 2.5 ns propagation-delay figure does not guarantee that every external clock edge is clean at 400 MHz. Confirm clock polarity in the design, avoid unnecessary fanout, separate sensitive or asynchronous inputs from high-current outputs, and run timing analysis with the actual board parasitics and external load assumptions. If clock quality is uncertain, lower the interface rate rather than relying only on nominal CPLD timing.
Place configuration-support components and decoupling capacitors close to their associated pins, and follow the manufacturer's TQFP land pattern and pin-1 orientation exactly. Keep the 48-pin footprint mechanically compatible with the listed candidates, but do not assume that physical compatibility guarantees logic compatibility. Review unused-pin treatment, configuration behavior during reset, and programming-interface access in the pin table. A footprint comparison should supplement, not replace, a complete electrical and timing review of any alternative.
合规信息
The supplied verified snippets do not explicitly establish RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for the exact LC4064B-5T48C orderable MPN. Compliance claims for other LC4064 variants must not be transferred automatically to this part.
