CY8C3665PVI-008 - 67MHz 8051 PSoC 3 MCU | Infineon
Référence : CY8C3665PVI-008 ✓ ActifCY8C3665PVI-008 Présentation
A PSoC 3 is a programmable system-on-chip in the embedded microcontroller hierarchy. It integrates an 8051-compatible CPU core with configurable analog and digital blocks rather than relying exclusively on fixed peripherals. This system-level integration can reduce external component count in applications requiring mixed-signal sensing, control, communication, or low-power operation.
The CY8C3665PVI-008 provides 32 KB of Flash organized as 32K x 8 bits, 4 KB of SRAM, 1 KB of data EEPROM, and 8 KB of ECC Flash according to the manufacturer and Keil device information. Its 12-bit ADC supports analog measurement tasks, while the dual datapointers and interrupt architecture help manage time-critical data movement and event handling.
Technical information identifies the device as an 8-bit, single-core 8051 microcontroller operating up to 67 MHz. The manufacturer product page lists the part as a CY8C36-series PSoC 3 with 32 KB Flash and a 12-bit ADC. Mouser additionally identifies a 0.5 V to 5.5 V operating range, while distributor listings identify the 48-pin SSOP package and 3.3 V operating class.
Typical uses include industrial sensing and control, low-power monitoring, embedded instrumentation, general-purpose control panels, and compact consumer products. The 67 MHz CPU speed supports faster control-loop execution, the 12-bit ADC supports analog input conditioning, and the programmable PSoC architecture allows peripheral functions to be adapted to a particular board design rather than fixed entirely at manufacture.
When designing around this device, verify the exact pin arrangement, exposed-pad requirements, operating-temperature grade, and clock implementation against the current manufacturer documentation. Supply decoupling and grounding remain important because analog measurements can be affected by noise coupling from digital and switching circuitry on a mixed-signal PCB.
This product record combines current distributor availability information, verified device parameters, manufacturer sourcing, and practical application guidance. It also distinguishes documented characteristics from unavailable details and clearly identifies the limited number of confirmed same-footprint drop-in alternatives.
Alternatives de remplacement direct pour CY8C3665PVI-008 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
CY8C3665PVI-049
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CY8C3665PVI-008 Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit PSoC 3 programmable system-on-chip |
| CPU Core | 8051, single core |
| Maximum CPU Frequency | 67 MHz |
| Program Memory Type | Flash |
| Flash Memory | 32 KB (32K x 8 bits) |
| SRAM | 4 KB |
| Data EEPROM | 1 KB |
| ECC Flash | 8 KB |
| ADC Resolution | 12 bits |
| Operating Voltage Range | 0.5 V to 5.5 V |
| Nominal Supply Voltage | 3.3 V |
| Boîtier | 48-pin SSOP |
| Type de montage | Surface Mount |
| Interrupt Sources | 27 sources |
| Interrupt Priority Levels | 8 levels |
| Datapointer Count | 2 |
| Peripheral Hub | 1 PHUB with 8 parallel access paths |
| Flash Protection Levels | 4 levels |
Guide de configuration des broches du CY8C3665PVI-008 48-pin ssop
Configuration des broches du CY8C3665PVI-008 (boîtier 48-pin ssop). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour CY8C3665PVI-008.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
CY8C3665PVI-008 convient pour 6 applications: Industrial Sensor Conditioning, Low-Power Environmental Monitoring, Embedded Instrumentation, Compact Control Panel, Communication Interface Node, Consumer Device Controller.
Industrial Sensor Conditioning
The CY8C3665PVI-008 fits compact sensor-conditioning systems because its verified 12-bit ADC can acquire analog inputs while the 67 MHz 8051 core performs filtering, thresholding, and control functions in one device. The 32 KB Flash and 4 KB SRAM provide dedicated code and working-memory space for embedded logic. The designer can place the MCU close to the sensor interface, reducing analog trace length compared with a remote processor. A key verification item is the exact ADC input range and acquisition timing, which were not included in the supplied source snippets.
Recommandé
Low-Power Environmental Monitoring
The CY8C3665PVI-008 is suitable for environmental monitoring nodes that periodically measure an analog quantity, evaluate the result, and transmit or store status. Its verified 32 KB Flash provides substantially more program space than a minimal controller, while the 12-bit ADC supports direct mixed-signal acquisition. The 8051-compatible core executes up to 67 MHz when active and can be used to coordinate low-power operating states, although actual sleep and active currents remain unavailable. Battery life must therefore be calculated from the current family power data rather than inferred from processor frequency.
Recommandé
Embedded Instrumentation
The CY8C3665PVI-008 can serve as the control processor in compact instrumentation where an analog input must be digitized and interpreted locally. Its 67 MHz core provides useful execution headroom for menus, calibration logic, data processing, and communication tasks, while the PSoC 3 architecture integrates programmable digital and analog functions. The verified 32 KB Flash accommodates a meaningful embedded application rather than only a minimal boot program. Engineers should budget SRAM carefully for buffers and verify that the selected ADC resolution and acquisition rate satisfy the measurement specification.
Recommandé
Compact Control Panel
The CY8C3665PVI-008 fits a compact control panel requiring local logic, analog input support, and flexible digital peripherals. The 8051 core can execute panel state management at up to 67 MHz, the 12-bit ADC can support analog controls or diagnostics, and the programmable PSoC resources reduce reliance on fixed-function blocks. Its 4 KB SRAM and 32 KB Flash provide a defined memory budget for firmware, calibration values, and communication buffering. Before layout release, verify package dimensions, pin assignments, and the intended display or communication interface directly in current Infineon documentation.
Recommandé
Communication Interface Node
The CY8C3665PVI-008 can act as the supervisory controller in a communication interface node that also handles discrete I/O or analog monitoring. Its 67 MHz 8051 core supports protocol processing and real-time control, while 32 KB Flash and 4 KB SRAM accommodate application firmware and packet buffering. The 12-bit ADC adds a useful health-monitoring channel for supply or sensor feedback. Designers should partition timing-critical communication code from background control and validate interrupt latency using the verified 27-source, eight-level interrupt architecture described in the device information.
Recommandé
Consumer Device Controller
The CY8C3665PVI-008 is appropriate for a consumer device controller that combines a fast 8051 core, configurable peripherals, and analog sensing in a 48-pin SSOP. Programmable PSoC blocks can support product-specific control behavior, while the 12-bit ADC can monitor user controls or system conditions. The verified 32 KB Flash and 4 KB SRAM allow more application functionality than a very small microcontroller, although no current pricing was supplied. Consumer programs should still validate reset behavior, brownout handling, and operating-temperature limits from the complete manufacturer documentation.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour CY8C3665PVI-008 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | CY8C3665PVI-049 |
|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies |
| Package | 48-pin SSOP | 48-pin SSOP family package |
| Product Type | PSoC 3 programmable system-on-chip | CY8C3665PVI-family PSoC |
Principaux différenciateurs
- Verified 67 MHz maximum operating frequency (vs CY8C3665PVI-049)
- Documented 12-bit mixed-signal ADC (vs CY8C3665PVI-049)
- Fully specified memory complement in retrieved device data (vs CY8C3665PVI-049)
Notes de conception
Route the 12-bit ADC inputs away from switching nodes, high-current outputs, and digital clock traces. The supplied material does not publish the complete pin map or recommended PCB layout, so start from the current manufacturer PSoC 3 layout guidance and schematic template. Keep the analog source path short, provide a quiet reference return, and place any required input filtering close to the selected device pins. Confirm the ADC input range and source impedance before finalizing the passive network.
Design the supply network for the verified 0.5 V to 5.5 V operating range while recognizing that the common 3.3 V operating class does not establish every internal core or peripheral voltage. Check the exact minimum operating voltage for the selected clock and configuration in the family datasheet. Place local bypass capacitors close to the device's power and ground pins using the manufacturer reference layout; the supplied excerpts do not specify validated capacitance values, so those values must not be guessed.
Do not treat the -008, -049, and -008T ordering suffixes as equivalent labels. The -008T result is a tape-and-reel ordering form of the same device family rather than a distinct drop-in alternative, while the -049 result requires direct comparison of speed, memory, temperature grade, and qualification data. Freeze prototypes using the exact orderable MPN and verify the package marking. Also check PSoC Creator or the current programming toolchain's device support before committing a firmware build.
Use the documented 8051 interrupt architecture and two datapointers to plan timing-sensitive data transfer. The verified device information lists 27 interrupt sources and eight priority levels, but it does not provide context-switch latency or peripheral timing values. Avoid sharing noisy switch-node ground paths with the ADC reference. Establish worst-case timing with the actual firmware and operating clock, and measure analog settling on the assembled PCB rather than assuming datasheet acquisition parameters are preserved in a dense mixed-signal layout.
Informations de conformité
The supplied manufacturer and distributor excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Compliance must be confirmed using the current Infineon declarations for the exact orderable MPN.
