Product Overview
The CY8C3446LTI-074 from Infineon (Cypress) is a PSoC 3 programmable system-on-chip combining an 8051 core at 50 MHz with 24 universal digital blocks (UDBs), a delta-sigma ADC, PGAs, DACs, and comparators. It enables custom mixed-signal peripherals configured in hardware without RTL.
Key Specifications
| Function | PSoC 3 programmable system-on-chip |
| Core | 8051 (up to 50 MHz) |
| Flash | 32 KB |
| RAM | 2 KB + 1 KB EPACT |
| UDBs | 24 universal digital blocks |
| Analog | Delsigma ADC, PGA, comparator, DAC |
| Package | TQFP-100 (14x14mm) |
Working Principle
The 8051 core runs application firmware. 24 UDBs implement custom digital peripherals (counters, PWM, UART, SPI, state machines) configured via PSoC Creator. Analog blocks include an 8-20 bit delta-sigma ADC, up to 4 PGAs, 4 voltage DACs, and 4 comparators with routing fabric. All analog and digital routing is configured at design time, eliminating external glue logic.
Applications
- Custom mixed-signal peripheral
- Motor control with analog sense
- Sensor interface with PGA+ADC
- Industrial control