LC4032B-5T44C - 32-Macrocell 400MHz CPLD | Lattice
料号： LC4032B-5T44C ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
LC4032B-5T44C 概述
A complex programmable logic device, or CPLD, is a programmable logic device that combines nonvolatile configuration storage with a structured array of macrocells. In the hierarchy of programmable logic devices, a CPLD sits above simple programmable logic arrays and provides deterministic timing, repeated in-system programming, and logic capacity suitable for consolidating multiple small fixed-logic functions. The LC4032B family supports 32 macrocells and up to 80 product terms per output, according to the supplied manufacturer-family search result.
The principal performance features are a 400MHz maximum operating frequency, 2.5ns propagation delay, support for as many as four global clock pins, and programmable clock-polarity control. The device can operate with 3.3V, 2.5V, or 1.8V supply rails, allowing integration into systems with mixed voltage requirements. Its in-system-programmable architecture supports configuration updates without removing the device from a circuit.
The LC4032B implementation uses an electrically erasable programmable nonvolatile memory architecture for persistent configuration, avoiding external configuration PROM. Global clock resources support high-speed synchronous logic, while distributed product-term logic provides flexible combinational and registered functions. These resources are relevant in control-plane designs where a small FPGA may be excessive but fixed logic would be costly to revise.
Typical uses include bus-interface decoding, display and keypad control, industrial control modules, peripheral glue logic, data acquisition systems, communications equipment, and FPGA or processor companion logic. The 48-pin TQFP provides a practical balance between routing access, thermal performance, and board-space requirements.
Designers should verify the exact pin assignments, supported I/O standards, AC timing values, and configuration requirements against the manufacturer datasheet before layout. Decoupling, ground-plane continuity, clock routing, and unused-pin treatment are particularly important in high-speed CPLD designs, even when the logic function appears simple.
This page combines verified device identity, family-level performance information, sourcing links, practical design guidance, and qualified comparison context that is not consolidated on a standard distributor listing.
直接替换替代料： LC4032B-5T44C ——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： LC4032B-5T44C （相同外形与封装尺寸） ——差异在于 Package, Device Type, Speed Grade.
快速对比工具——选择替代料号进行并排对比：
LC4032B-5TN44C
✅ 直接替换📋 参考替代料（不在目录中）
LC4032B-5TN44I
✅ 直接替换📋 参考替代料（不在目录中）
LC4032ZE-7TN48C
✅ 直接替换📋 参考替代料（不在目录中）
LC4032ZC-75T48C
✅ 直接替换📋 参考替代料（不在目录中）
LC4032B-5T44C 最大额定值与电气特性
| Device Type | In-System Programmable SuperFAST High-Density PLD |
| Macrocell Count | 32 macrocells |
| Maximum Operating Frequency | 400 MHz |
| Propagation Delay | 2.5 ns |
| Supported Supply Voltages | 3.3 V, 2.5 V, or 1.8 V |
| Global Clock Pins | Up to 4 |
| Clock Polarity Control | Programmable |
| Product Terms per Output | Up to 80 |
| 封装 | 48-pin TQFP |
| 安装类型 | Surface mount |
| Programming Method | In-system programmable |
| Configuration Memory | Nonvolatile configuration storage |
| Speed Grade | -5 |
LC4032B-5T44C 48-pin tqfp 引脚配置指南
LC4032B-5T44C（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： LC4032B-5T44C.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LC4032B-5T44C 适用于 6 应用s: Processor Bus Interface Decoding, Industrial Data Acquisition Control, Display and Keypad Interface Control, Communication Interface Bridging, FPGA and Processor Companion Logic, Clocked Control and Sequencing Logic.
Processor Bus Interface Decoding
The LC4032B-5T44C is appropriate for processor-bus decoding when a board needs a small, deterministic state machine between a host controller and peripheral logic. Its 32 macrocells provide capacity for address decode, read and write strobes, chip selects, interrupt arbitration, and bus-cycle qualification, while the verified 2.5ns propagation delay supports high-speed control paths. The in-system-programmable architecture permits firmware-driven logic updates during development without replacing the package. A processor such as the STM32F103ZET6 can be paired with this CPLD when decoding logic must remain flexible. Designers should still verify each assigned pin, voltage domain, and timing path against the complete datasheet.
推荐
Industrial Data Acquisition Control
The LC4032B-5T44C can implement deterministic acquisition-control functions such as channel sequencing, trigger qualification, counter reloads, and status encoding. Its verified 400MHz maximum frequency and four global clock pins make it useful when acquisition timing must be separated from a slower processor, while 32 macrocells allow multiple control paths to be consolidated. An MCU such as the STM32F407VGT6 can perform measurements while the CPLD handles deterministic timing. The supplied evidence does not confirm the device's operating-temperature range or industrial qualification, so those limits must be checked before deployment in factory equipment.
推荐
Display and Keypad Interface Control
The LC4032B-5T44C fits display and keypad control where scan timing, debounce state, indicator logic, and host communication are more complex than a fixed lookup table. Its 32 macrocells can support scan counters, encoded key events, command formatting, and display multiplexing, while the programmable clock-polarity control supports deterministic clock-edge selection. The STM32F072RBT6TR can serve as the user-interface controller and delegate repetitive scanning or timing functions to the CPLD. Actual I/O voltage, drive strength, and timing must be checked against the target display interface and PCB layout before finalizing the design.
推荐
Communication Interface Bridging
The LC4032B-5T44C can bridge protocol and timing differences in embedded communication equipment by implementing framing, byte alignment, FIFO control, status flags, or level translation between a microcontroller and an external transceiver. Its high-frequency operation and flexible global clocks allow deterministic pipeline stages without using a large FPGA. The KSZ8001LI Ethernet transceiver and SN75176BD RS-485 transceiver represent possible system companions when the CPLD manages sideband control or timing, although protocol-specific interfaces still require detailed validation. Confirm package pin assignment, I/O standards, and direction controls in the manufacturer documentation before layout.
推荐
FPGA and Processor Companion Logic
The LC4032B-5T44C is useful as companion glue logic beside an FPGA or high-speed processor, especially where a small group of deterministic functions must remain outside the main programmable-logic device. Examples include configuration sequencing, reset control, interrupt routing, bus-width adaptation, and startup monitoring. Its nonvolatile in-system programming allows board revisions without changing nearby programmable devices, while the 48-pin TQFP provides a manageable number of external connections. The XC2C256-7TQG144C can serve as a larger companion CPLD in a multi-logic architecture, but designers should partition functions according to timing, resource, and verification requirements rather than device count alone.
推荐
Clocked Control and Sequencing Logic
The LC4032B-5T44C fits clocked control, sequencing, and pulse-generation systems because it provides up to four global clock pins with programmable clock-polarity control. Engineers can build counters, state machines, pulse stretchers, trigger pipelines, and clock-domain-related control functions using the macrocell array and product-term resources. Its verified 400MHz maximum operating frequency gives ample margin for many control applications, while 2.5ns propagation delay supports short combinational paths. A timer or MCU such as the ATMEGA328-AU may issue high-level commands while the CPLD executes precise timing sequences. Validate clock jitter, skew, setup, and hold at the board level because IC specifications alone do not guarantee system timing.
推荐
推荐产品汇总
工程参考数据： LC4032B-5T44C ——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 | LC4032B-5TN44C | LC4032B-5TN44I | LC4032ZE-7TN48C | LC4032ZC-75T48C |
|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | 48-pin TQFP | 48-pin TQFP | 48-pin TQFP | 48-pin TQFP | 48-pin TQFP |
| Device Family | LC4032B | LC4032B | LC4032B | LC4032ZE | LC4032ZC |
| Speed Designation | -5 | -5 | -5 | -7 | -7 |
关键差异点
- Directly verified high-speed performance for the LC4032B family （对比 LC4032ZE-7TN48C)
- Multi-voltage support explicitly identified for the target family （对比 LC4032ZC-75T48C)
- Four programmable global clock resources （对比 LC4032B-5TN44I)
设计说明
Place the required power and ground bypass capacitors close to their corresponding device pins, following the manufacturer datasheet reference layout. The supplied search excerpts do not specify capacitor values, pin locations, or the exact voltage configuration, so those details must not be inferred. Keep the TQFP escape paths short, avoid placing test pads or other high-current traces between power and ground vias, and preserve a continuous ground reference beneath the device.
Route every global clock directly from its driver to the assigned clock pin with short, symmetric geometry and minimal stub branches. Although the LC4032B supports up to four global clocks and programmable clock-polarity control, board-level skew and jitter can degrade timing margin even when the specified maximum frequency is 400MHz. Use the complete datasheet for clock-input requirements and timing constraints, and measure the completed board if multiple clock domains or external fanout are involved.
Do not treat every LC4032-family ordering code as a guaranteed drop-in substitute. LC4032B-5TN44C and LC4032B-5TN44I appear in the supplied cross-reference results, while LC4032ZE-7TN48C and LC4032ZC-75T48C use different speed-family suffixes. Before substitution, compare the complete pin table, voltage options, programming method, macrocell utilization, timing tables, temperature grade, and lifecycle status. Also verify that any recommended price is current as of the quotation date rather than relying on an indexed search snippet.
合规信息
The supplied web results identify Lattice Semiconductor and provide family-level device information, but they do not contain verified compliance declarations. The LC4032B-5T44C is a programmable digital IC, not a power semiconductor, so SOA is not applicable.
