Cypress Semiconductor CY8C21534-24PVXI, 8bit CPU Microcontroller, CY8C21434, 24MHz, 8 kB Flash, 28-Pin SSOP

Powerful Harvard-architecture processor
M8C processor speeds up to 24 MHz
Low power at high speed
Operating voltage: 2.4 V to 5.25 V
Operating voltages down to 1.0 V using on-chip switch mode pump (SMP)
Industrial temperature range: –40 °C to +85 °C
Advanced peripherals (PSoC® blocks)
Four analog Type E PSoC blocks provide:
Two comparators with digital-to-analog converter (DAC) references
Single or dual 10-bit 28 channel analog-to-digital converters (ADC)
Four digital PSoC blocks provide:
8- to 32-bit timers, counters, and pulse width modulators (PWMs)
Cyclical redundancy check (CRC) and pseudo random sequence (PRS) modules
Full-duplex universal asynchronous receiver transmitter (UART), serial peripheral interface (SPI) master or slave
Connect able to all general purpose I/O (GPIO) pins
Complex peripherals by combining blocks
Flexible on-chip memory
8 KB flash program storage 50,000 erase/write cycles
512 bytes static random access memory (SRAM) data storage
In-system serial programming (ISSP)
Flexible protection modes
EEPROM emulation in flash
Free development software (PSoC Designer™)
Full-featured, in-circuit emulator (ICE) and programmer
Full-speed emulation
128-KB trace memory
Internal ±2.5% 24- / 48-MHz main oscillator [1]