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Product Detailed Parameters
- Description：IC MCU 8BIT 32KB FLASH 68QFN
- Series：PSOC® 3 CY8C32xx
- Mfr：Cypress Semiconductor Corp
- Package：Tray
- Core Processor：8051
- Core Size：8-Bit
- Speed：50MHz
- Connectivity：EBI/EMI, I2C, LINbus, SPI, UART/USART, USB
- Peripherals：CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O：38
- Program Memory Size：32KB (32K x 8)
- Program Memory Type：FLASH
- EEPROM Size：1K x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.71V ~ 5.5V
- Data Converters：A/D 16x12b; D/A 1x8b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：68-QFN (8x8)
- Package / Case：68-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The CY8C3245LTI-129 is an 8-bit microcontroller from the PSoC 3 family, featuring a single-cycle 8051 CPU core operating up to 50 MHz. It integrates 32 kB of Flash program memory and 4 kB of SRAM within a 48-pin QFN package. The device supports a supply voltage range of 1.71 V to 5.5 V and includes interfaces such as I2C, SPI, UART, and USB. It operates within a temperature range of -40 °C to +85 °C.
Feature Summary
- Integrates a high-performance single-cycle 8051 CPU with DMA controller for efficient data handling
- Features programmable analog and digital subsystems allowing flexible routing of peripherals to any pin
- Includes built-in full-speed USB 2.0 interface certified for peripheral applications
- Supports multiple low-power modes including sleep and deep sleep for energy optimization
Applications
- Embedded control systems requiring mixed-signal processing
- USB-enabled peripheral devices and host controllers
- Battery-powered consumer electronics utilizing low-voltage operation
- Industrial monitoring nodes with configurable sensor interfaces
Procurement Notes
Verify the specific ordering suffix against official Infineon documentation to confirm package type and temperature grade. Ensure compatibility with PSoC Creator development tools. Confirm RoHS compliance status through current manufacturer datasheets before integration into production designs.
Selection Notes
Select this component when a design requires a mix of analog precision and digital flexibility on a single chip. The 48-pin QFN form factor suits space-constrained layouts. Consider the 50 MHz clock speed and available I/O count relative to system complexity. Evaluate power consumption requirements against the supported voltage domains.
Part Context
This part belongs to the Cypress (now Infineon) PSoC 3 family, designed for highly integrated embedded solutions. The series combines MCU capabilities with configurable analog and digital blocks. It targets applications needing rapid prototyping and hardware customization without external discrete components.
Replacement Considerations
Check for CY8C3245 variants with different suffixes indicating alternate packages or temperature ranges. Verify functional equivalence with other CY8C32xx models in the same family regarding memory size and pinout compatibility.
