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Product Detailed Parameters
- Description：IC MCU 8BIT 16KB FLASH 48QFN
- Series：PSOC™ 3 CY8C32xx
- Mfr：Infineon Technologies
- Package：Tray
- Core Processor：8051
- Core Size：8-Bit
- Speed：50MHz
- Connectivity：EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals：CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O：25
- Program Memory Size：16KB (16K x 8)
- Program Memory Type：FLASH
- EEPROM Size：512 x 8
- RAM Size：2K 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：48-QFN (7x7)
- Package / Case：48-VFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The CY8C3244LTI-135 is an 8-bit microcontroller from Infineon's PSoC 3 family, built on a standard 8051 core. It features up to 50 MHz operating frequency and includes 64 kB of Flash program memory with 4 kB of SRAM. The device integrates one 12-bit Delta-Sigma ADC sampling at 192 ksps and one 8-bit DAC. It provides 25 I/O pins, supports CAPSENSE technology, and offers LCD direct drive capabilities. Operating voltage ranges from 1.71 V to 5.5 V across a -40 °C to 85 °C temperature range.
Feature Summary
- Integrates CAPSENSE technology for capacitive touch sensing applications
- Supports direct driving of LCD displays without external drivers
- Includes programmable analog blocks for mixed-signal signal processing
Applications
- Capacitive touch interface controllers
- LCD-based display systems
- Battery-powered portable devices requiring low voltage operation
Procurement Notes
Verify the specific suffix LTI-135 against official Infineon documentation to confirm package type and temperature grade. Ensure compatibility with PSoC Creator development tools. Confirm RoHS compliance status through current datasheets. Check for any obsolescence notices or lifecycle changes before procurement.
Selection Notes
Select this component when an 8-bit 8051 architecture with integrated analog peripherals is required. It is suitable for designs needing CAPSENSE integration and LCD driving within a compact QFN package. Consider power consumption requirements and available GPIO count relative to system needs.
Part Context
This part belongs to the PSoC 3 series, which combines a configurable analog block array with digital logic and a CPU. The series targets cost-sensitive embedded applications requiring mixed-signal functionality. It shares architectural similarities with other PSoC 3 variants but differs in memory size and pin count.
Replacement Considerations
Check for direct pin-compatible substitutes within the PSoC 3 family such as CY8C3244AXI or CY8C3244PVI. Verify if higher-performance PSoC 4 or PSoC 5LP devices are suitable alternatives if software migration is feasible.
