LC4064B-5T48I - 64-Macrocell 5ns ISP CPLD | Lattice
N.º de pieza: LC4064B-5T48I ✓ ActivoLC4064B-5T48I Descripción general
A complex programmable logic device, or CPLD, belongs to the programmable-logic hierarchy: programmable logic device > CPLD > reconfigurable digital logic > semiconductor. It combines programmable AND-array logic, dedicated macrocells, and user-programmable interconnect to implement control, decoding, interface, and glue logic. Unlike a mask-programmed fixed function IC, a CPLD can be configured from a stored programming file, allowing design revisions without changing the PCB.
The LC4064B includes 64 macrocells and 32 I/O according to the verified product listing. Its 5 ns speed designation supports deterministic propagation performance in control paths, bus arbitration, state machines, and peripheral interfacing. In-system programmability allows configuration through the same board after fabrication, reducing assembly rework and supporting field updates when the programming interface is retained.
The device belongs to the ispMACH 4000B family and is described by Lattice Semiconductor as a 3.3 V, 2.5 V, and 1.8 V in-system programmable SuperFAST high-density PLD. Its 48-LQFP package provides 32 user I/O in a surface-mount footprint, making it practical for automated assembly and prototypes that need both programmable logic and a conventional fine-pitch package.
Typical uses include industrial control and automation, communication-interface logic, test and measurement equipment, embedded system peripheral expansion, and general-purpose digital prototyping. In these systems, the CPLD can consolidate address decoding, handshake sequencing, latch logic, and protocol adaptation while avoiding the development cycle associated with a custom ASIC.
Designers should verify the power-supply topology, I/O voltage limits, configuration pins, and programming source against the manufacturer datasheet before layout. The verified data identifies a -40 °C to +105 °C junction-temperature range and a 48-LQFP package, but does not provide the complete pin table, absolute maximum ratings, recommended decoupling, or AC timing values in the supplied records.
Alternativas directas para LC4064B-5T48I — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con LC4064B-5T48I (mismo factor de forma y huella) — difiere en Logic Family, Supported Supply Voltages.
LC4064B-5TN48I
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LC4064B-10T48I
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LC4064B-5T48C
✅ Sustitución directa ⚠️ Especificaciones sin verificarConsulte el precio
Ver hoja de datos →LC4064B-10T48C
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LC4064B-5TN48C
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
LC4064B-5T48I Valores máximos y características eléctricas
| Product Type | SuperFAST high-density programmable logic device (CPLD) |
| Device Series | ispMACH 4000B |
| Number of Macrocells | 64 macrocells |
| Number of I/O | 32 I/O |
| Speed Grade | 5 ns |
| Programming Type | In-system programmable (ISP) |
| Supported Supply Voltages | 1.8 V, 2.5 V, and 3.3 V |
| Encapsulado | 48-LQFP (TQFP-48) |
| Tipo de montaje | Surface mount |
| Rango de temperatura de funcionamiento | -40 °C to +105 °C (junction temperature) |
| Logic Family | ispMACH 4000B SuperFAST high-density PLD |
Guía de configuración de pines de LC4064B-5T48I 48-lqfp (tqfp-48)
Configuración de pines para LC4064B-5T48I (encapsulado 48-lqfp (tqfp-48)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para LC4064B-5T48I.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
LC4064B-5T48I es adecuado para 6 aplicacións: Industrial Control Logic, Communication Interface Consolidation, Test and Measurement Control, Embedded Peripheral Interface Expansion, Programmable System Interconnect, Rapid Digital Prototyping.
Industrial Control Logic
The LC4064B-5T48I fits industrial controller logic that combines deterministic sequencing with a -40 °C to +105 °C junction-temperature specification. Its 64 macrocells can consolidate interlocks, state machines, command decoding, and actuator-control logic, while the 5 ns speed grade provides useful timing margin for synchronous control paths. The 32-I/O count supports field-bus and discrete-interface consolidation without requiring an ASIC redesign. In-system programmability allows the control image to be updated through a retained programming interface after board assembly. The 48-LQFP package also supports standard automated assembly, although supply decoupling, configuration pins, signal-level limits, and unused I/O treatment must follow the manufacturer datasheet.
Recomendado
Communication Interface Consolidation
The LC4064B-5T48I is suitable for communication equipment requiring programmable framing, handshaking, and peripheral adaptation. Its 64 macrocells can implement protocol state machines, FIFO control logic, byte comparison, and interface multiplexing, while the 5 ns grade supports synchronous control logic operating close to the core logic. The 32 available I/O reduce the number of separate glue ICs needed around a communications controller. In-system programming is particularly useful during product qualification because interface behavior can be revised without relocating the CPLD. Designers should establish clock, reset, and configuration-routing rules from the datasheet and ensure that unused inputs and outputs receive board-level termination appropriate to the implemented protocol.
Recomendado
Test and Measurement Control
The LC4064B-5T48I can implement control sequencing, instrument bus arbitration, trigger routing, and status decoding in test and measurement systems. Its 64 macrocells provide enough capacity for moderately complex digital sections without requiring a full FPGA, and the 5 ns speed grade is useful where deterministic control paths operate near an instrument processor. The 32-I/O arrangement can connect external relays, front-panel controls, and status indicators through a unified programmable interface. In-system programmability supports configuration variants across product models or test fixtures. Because high-speed analog and RF paths are outside this CPLD's role, engineers should isolate them from the digital control section and verify input thresholds, output behavior, and supply tolerances directly from the manufacturer documentation.
Recomendado
Embedded Peripheral Interface Expansion
The LC4064B-5T48I is useful for expanding legacy embedded systems with programmable address decoding, interrupt control, latch functions, and peripheral multiplexing. With 64 macrocells and 32 I/O, it can connect slower support logic to a processor bus while implementing boot-time sequencing and hardware options. The 5 ns speed grade helps accommodate combinational decoding and register-style interfaces, while in-system programming permits late-stage board changes when programming pins remain accessible. The 48-LQFP package provides a practical upgrade path for designs transitioning from older PLDs. Engineers must confirm the device's supported I/O standards, configuration behavior, power-up state, and timing constraints rather than assuming compatibility with an older CPLD solely from package similarity.
Recomendado
Programmable System Interconnect
The LC4064B-5T48I can serve as a programmable system-interconnect block between processors, memory interfaces, and peripheral buses. Its 64 macrocells allow designers to implement arbitration, address translation, interrupt routing, and mode-dependent control functions in one device. The 5 ns speed grade is advantageous where the interconnect participates in synchronous timing paths, while 32 I/O offer sufficient connectivity for a compact embedded platform. In-system programming supports product differentiation, board-level configuration, and recovery after firmware updates. The implementation should include deliberate pin multiplexing, defined power-up states, and a configuration mechanism that does not conflict with normal I/O operation. Exact input tolerance, output-drive, and timing values must be taken from the current manufacturer datasheet.
Recomendado
Rapid Digital Prototyping
The LC4064B-5T48I is practical for prototypes that need programmable combinational and sequential logic without committing to an ASIC or a larger FPGA. Its 64 macrocells can implement counters, decoders, pipeline registers, test patterns, and complete control blocks, while the 5 ns grade supports higher-speed laboratory experiments. The 32-I/O count and 48-LQFP package make the device straightforward to place on a reusable mixed-signal or processor-based prototype board. In-system programming shortens iteration cycles because logic changes can be downloaded during development. Before fabrication, engineers should review the pinout, supported supply configurations, I/O restrictions, and timing tables that are not included in the supplied search records and should preserve a path for configuration and power-up testing.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para LC4064B-5T48I — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | LC4064B-5TN48I | LC4064B-10T48I | LC4064B-5T48C | LC4064B-10T48C | LC4064B-5TN48C |
|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | TQFP-48 (48-LQFP) | TQFP-48 - same package family | TQFP-48 - same package family | TQFP-48 - same package family | TQFP-48 - same package family | TQFP-48 - same package family |
| Product Type | SuperFAST high-density CPLD | SuperFAST high-density CPLD | SuperFAST high-density CPLD | SuperFAST high-density CPLD | SuperFAST high-density CPLD | SuperFAST high-density CPLD |
| Speed Grade | 5 ns | 5 ns | 10 ns | 5 ns | 10 ns | 5 ns |
| Programming Type | In-system programmable | In-system programmable | In-system programmable | In-system programmable | In-system programmable | In-system programmable |
| Supported Supply Voltages | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V | 1.8 V, 2.5 V, and 3.3 V |
| Temperature Designation | Industrial (I) | N designation | Industrial (I) | C designation | C designation | N and C designation variants |
| Number of Macrocells | 64 macrocells | 64 macrocells | 64 macrocells | 64 macrocells | 64 macrocells | 64 macrocells |
| Number of I/O | 32 I/O | 32 I/O | 32 I/O | 32 I/O | 32 I/O | 32 I/O |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount |
Diferenciadores clave
- Faster timing grade within the same LC4064B 48-pin family (frente a LC4064B-10T48I)
- Industrial-temperature ordering option (frente a LC4064B-5T48C)
- Retains the 5 ns speed grade without the industrial suffix (frente a LC4064B-5TN48I)
- Single-device consolidation through 64 macrocells and 32 I/O (frente a LC4064B-10T48C)
Notas de diseño
Verify the exact core and I/O supply arrangement in the manufacturer datasheet before laying out the board. Although the verified family description lists 1.8 V, 2.5 V, and 3.3 V operation, those values do not establish every permitted supply combination or pin-level sequencing rule. Place the required core and I/O decoupling capacitors close to their associated pins, provide adequate return paths, and use separate filtering where board noise could affect configuration or I/O thresholds.
Reserve the configuration interface and programming pins according to the official pinout rather than inferring their locations from the 48-LQFP drawing. Keep programming-trace access practical for prototype boards and consider a safe configuration method for production. Treat unused I/O explicitly in the design, check whether the datasheet permits a default state, and avoid assigning external signals to reserved or power pins.
Do not treat a matching package as proof of drop-in equivalence. The 5 ns and 10 ns speed grades can alter timing margins, while I, N, and C suffixes represent different temperature classifications. Before substituting a family member, compare the complete pinout, supported supply voltages, I/O standards, configuration behavior, timing tables, absolute maximum ratings, and programmed-device compatibility. Validate the replacement through timing analysis and hardware testing.
Route clock, configuration, and high-fanout control signals away from noisy power-conversion nodes, and add source termination when the datasheet timing analysis or board topology requires it. Maintain a continuous ground reference beneath the device, avoid long stubs on sensitive inputs, and provide test access for configuration and major control nets. These practices are especially important when the CPLD coordinates switches, relays, or externally clocked peripherals.
Información de cumplimiento
The supplied web records do not provide explicit compliance declarations for the exact MPN. The verified industrial suffix and temperature range do not by themselves establish AEC-Q100 qualification.
