CY8C3665LTI-199 - 67MHz PSoC 3 MCU with 32KB Flash | Infineon
N.º da peça: CY8C3665LTI-199 ✓ AtivoCY8C3665LTI-199 Visão geral
A PSoC, or programmable system-on-chip, is an MCU-family device that places a processor, programmable peripheral blocks, analog conversion functions, and digital logic on one integrated circuit. Within the product hierarchy, a PSoC is a microcontroller and embedded control device, while its configurable analog and digital blocks extend beyond the functions of a basic fixed-function MCU. This integration can reduce board area and development effort when firmware can configure the required peripheral combination.
The CY8C3665LTI-199 operates at up to 67 MHz and includes 32 KB of flash plus 4 KB of SRAM according to the distributor product data. Its 12-bit ADC supports applications that require measurements beyond the resolution of an 8-bit microcontroller input. A 1.71 V to 5.5 V flexible supply range provides compatibility with embedded supply rails, while the industrial temperature range of -40°C to +85°C supports operation across industrial, consumer, and automotive-adjacent environments.
The device belongs to the CY8C36xx PSoC 3 family and uses the Infineon or Cypress PSoC Creator-compatible design ecosystem. Its architecture is suited to mixed-signal products in which analog sensing, digital control, timers, communication, and programmable logic must share a compact microcontroller platform. The supplied manufacturer information confirms the 8051 core, 32 KB flash, and 12-bit ADC; detailed peripheral assignments and register behavior must be checked against the manufacturer datasheet for the selected clock, routing, and converter configuration.
Typical uses include industrial control panels, capacitive sensing interfaces, compact consumer controls, temperature and environmental measurement systems, and communication-enabled embedded products. The 12-bit ADC is particularly useful for monitoring analog sensors, while the 67 MHz processing rate provides additional headroom for protocols, control logic, and system management tasks.
Designers should verify the complete 68-QFN pin assignment, exposed-pad connection, decoupling requirements, clock options, and power-sequencing limits in the manufacturer documentation before layout. Because this is a configurable mixed-signal MCU, unused analog and digital blocks should be configured deliberately, and analog routing and sensitive measurement circuits should be placed away from high-current switching paths.
This product record combines verified manufacturer and distributor specifications, availability links, procurement guidance, and design-focused selection criteria. It also distinguishes confirmed technical facts from details that require validation in the full datasheet, helping engineers evaluate the CY8C3665LTI-199 without mistaking a related-family device for a verified drop-in replacement.
Alternativas drop-in para CY8C3665LTI-199 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasCY8C3665LTI-199 Classificações máximas e características elétricas
| Product Type | 8-bit PSoC 3 microcontroller |
| CPU Architecture | 8051 |
| Maximum CPU Frequency | 67 MHz |
| Flash Memory | 32 KB |
| Flash Organization | 32K x 8 bits |
| SRAM | 4 KB |
| ADC Resolution | 12 bits |
| Supply Voltage Range | 1.71 V to 5.5 V |
| Faixa de temperatura de operação | -40°C to +85°C |
| Encapsulamento | 68-QFN, 8 mm x 8 mm |
| Tipo de montagem | Surface mount |
| Product Family | CY8C36xx PSoC 3 |
| Programmable System-on-Chip Type | PSoC 3 |
| Flash Protection Levels | 4 levels |
| Data EEPROM | 1 KB |
| ECC Flash | 8 KB |
| Interrupt Sources | 27 |
| Interrupt Priority Levels | 8 |
| Peripheral Hub Units | 1 |
| Parallel Peripheral Access Paths | 8 |
Guia de Configuração de Pinos do CY8C3665LTI-199 68-qfn, 8 mm x 8 mm
Configuração de pinos para CY8C3665LTI-199 (pacote 68-qfn, 8 mm x 8 mm). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para CY8C3665LTI-199.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
CY8C3665LTI-199 é adequado para 6 aplicaçãos: Industrial Sensor Measurement, Capacitive Sensing Interface, Consumer Control Panel, Temperature and Environmental Monitoring, Automotive-Adjacent Embedded Control, Compact Communication Controller.
Industrial Sensor Measurement
The CY8C3665LTI-199 fits compact industrial sensor-measurement designs that need more resolution than an 8-bit ADC while avoiding a separate conversion device. Its 12-bit ADC processes analog inputs, and the 67 MHz 8051 core can handle sampling control, filtering, status reporting, and other real-time tasks. The 1.71 V to 5.5 V supply range supports both low-voltage sensor interfaces and common embedded rails. A designer should verify the ADC input range, acquisition time, routing options, and required calibration sequence against the datasheet. The -40°C to +85°C specification supports industrial temperature targets, although it does not independently establish every regulatory or environmental requirement.
Recomendado
Capacitive Sensing Interface
The CY8C3665LTI-199 is applicable to capacitive sensing interfaces because the PSoC 3 architecture integrates programmable system resources with an 8051 control core. Firmware can coordinate sensor scanning, timing, signal interpretation, and communication while the 67 MHz processor provides processing headroom. The 32 KB flash supports a control application and configuration data, while 4 KB SRAM supports working state. Designers should confirm the CapSense configuration, available scan resources, clocking method, and electrode routing for the exact device revision. PCB construction also matters because parasitic capacitance, guard-ring design, and environmental shielding can influence touch performance as much as the MCU itself.
Recomendado
Consumer Control Panel
The CY8C3665LTI-199 can support compact consumer control panels that combine touch or analog inputs, local decision logic, and serial communications. Its 8051-compatible 67 MHz core provides more processing headroom than a basic low-speed controller, while 32 KB flash accommodates application firmware and 4 KB SRAM handles runtime variables and communication buffers. The 1.71 V to 5.5 V operating range permits integration with multiple embedded supply architectures. For a production design, verify display or communication interfaces, available timers, USB or UART support, and package-level thermal performance. Firmware partitioning and boot requirements should be evaluated before assigning memory-intensive functions.
Recomendado
Temperature and Environmental Monitoring
The CY8C3665LTI-199 suits environmental monitoring systems that need local ADC acquisition, periodic control, and communication with a host. Its 12-bit ADC provides a useful improvement over basic 8-bit control systems, while the 67 MHz 8051 CPU can execute acquisition sequencing and signal processing between samples. The -40°C to +85°C rated range covers many industrial environments, and the 1.71 V to 5.5 V supply specification supports low-energy sensor nodes. Engineer should verify sensor excitation, analog front-end scaling, ADC input impedance, and sampling timing. For low-power designs, the average-current target must be balanced against the selected clock frequency and duty cycle rather than inferred from peak performance.
Recomendado
Automotive-Adjacent Embedded Control
The CY8C3665LTI-199 may be evaluated for automotive-adjacent auxiliary controls where its -40°C to +85°C rating, 12-bit ADC, and compact 68-QFN package fit the technical envelope. The 8051 core and PSoC 3 resources can consolidate analog monitoring and digital control in space-constrained assemblies. However, the supplied data does not state that this exact orderable device is AEC-Q100 qualified, so it must not be treated as an automotive-qualified replacement. Engineers should review the exact ordering code, qualification status, transient requirements, functional-safety expectations, and external protection network before using it in a safety-relevant or production vehicle platform.
Recomendado
Compact Communication Controller
The CY8C3665LTI-199 can act as the local controller in a compact communication product when the required interface is supported by the selected CY8C36xx configuration. Its 67 MHz 8051 core can manage protocol timing and application state, while 32 KB flash and 4 KB SRAM provide dedicated code and working memory for embedded control. The 1.71 V to 5.5 V supply range supports integration into common low-voltage systems, and the 68-QFN package preserves board area. Before choosing it, verify the exact communication peripheral, baud-rate requirements, buffer capacity, clock accuracy, and pin multiplexing in the manufacturer documentation. A production layout should reserve isolation, termination, and ESD protection based on the external interface.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para CY8C3665LTI-199 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Principais diferenciais
- 12-bit analog conversion in a compact PSoC 3 device (vs CY8C3865LTI-014)
- Confirmed 67 MHz 8051 processing configuration (vs CY8C3865LTI-205)
- Compact 68-QFN integration (vs CY8C3665LTI-199T)
Notas de projeto
Use the official 68-QFN drawing to establish the exposed-pad connection and land pattern before routing. Place the required bypass capacitors close to their assigned supply pins, provide a low-impedance ground reference, and keep sensitive analog inputs away from digital return paths and switching nodes. The supplied search data does not provide the complete pin table or recommended capacitor values, so those details must be copied directly from the manufacturer datasheet rather than inferred from generic QFN layouts.
Treat analog measurement and capacitive sensing as mixed-signal routing problems even though the device combines both functions. Use a continuous ground reference, minimize loop area, separate analog and digital return currents, and avoid routing high-current outputs beneath sensitive inputs. For capacitive sensing, follow the manufacturer’s recommended electrode, guard, and shielding layouts because parasitic capacitance and moisture can alter scan results. Validate the final PCB with the intended sensor geometry and enclosure rather than relying on nominal MCU specifications.
The confirmed 1.71 V to 5.5 V operating range supports multiple supply architectures, but the selected regulator topology must maintain the required voltage during startup, transient, and sleep states. Check the datasheet’s permitted clock configurations against the available supply voltage before using the full 67 MHz operating frequency. Place decoupling close to the device, observe the exposed-pad requirements, and verify that supply noise does not degrade the 12-bit measurement path. Exact capacitor and exposed-pad guidance requires the manufacturer documentation.
Do not treat the related CY8C3865LTI-014 or CY8C3865LTI-205 comparison results as drop-in replacements. The supplied evidence does not verify their pin assignments, memory, clocking, voltage, or peripheral compatibility with the CY8C3665LTI-199. Likewise, do not count CY8C3665LTI-199T as a distinct engineering alternative because it is primarily an ordering and packaging variation. Validate any proposed substitution against the official package drawings, datasheets, errata, bootloader behavior, and production firmware requirements.
Informações de conformidade
The supplied data does not explicitly extract RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements. AEC-Q100 qualification is treated as not qualified for this exact orderable device because the provided product information does not identify it as AEC-Q100 qualified; automotive-adjacent use therefore requires explicit manufacturer review.
