Description

The CY8C21434-24LCXI is a microcontroller in the PSoC family. It is designed to replace multiple traditional MCU-based system components with one low-cost single-chip programmable device. The CY8C21434-24LCXI includes configurable blocks of analog and digital logic, and programmable interconnects, allowing users to create customized peripheral configurations to match the requirements of each individual application. It features a powerful Harvard Architecture Processor with speeds up to 24 MHz, low power at high speed, and an operating voltage range of 3.0V to 5.25V. The microcontroller also includes advanced peripherals such as analog and digital PSoC blocks, high-speed 10-bit SAR ADC, precision programmable clocking, flexible on-chip memory, optimized CapSense resource, and various programmable pin configurations. Additionally, it offers additional system resources like I2C support, watchdog and sleep timers, user-configurable low voltage detection, and on-chip precision voltage reference.

Specifications and features

• Powerful Harvard Architecture Processor:
• M8C Processor Speeds up to 24 MHz
• 8x8 Multiply, 32-Bit Accumulate
• Low Power at High Speed
• 3.0V to 5.25V Operating Voltage
• Industrial Temperature Range: -40°C to +85°C
• Advanced Peripherals (PSoC Blocks)
• Six Analog Type “E” PSoC Blocks Provide:
  • Single or Dual 8-Bit ADC
  • Comparators (up to four)
• Up to Eight Digital PSoC Blocks Provide:
  • 8 to 32-Bit Timers, Counters, and PWMs
  • One Shot, Multi Shot Mode Support in Timers and PWMs
  • PWM with Deadband Support in One Digital Block
  • Shift Register, CRC, and PRS Modules
  • Full Duplex UART
  • Multiple SPI Masters or Slaves, Variable Data Length Support: 8 to 16-Bit
  • Can be Connected to all GPIO Pins
• Complex Peripherals by Combining Blocks
• Shift Function Support for FSK Detection
• Powerful Synchronize Feature Support. Analog Module Operations can be Synchronized by Digital Blocks or External Signals.
• High Speed 10-Bit SAR ADC with Sample and Hold Optimized for Embedded Control
• Precision, Programmable Clocking:
  • Internal ± 5% 24/48 MHz Oscillator across the Industrial Temperature Range
  • High Accuracy 24 MHz with Optional 32 kHz Crystal and PLL
  • Optional External Oscillator, up to 24 MHz
  • Internal/External Oscillator for Watchdog and Sleep
• Flexible On-Chip Memory:
  • Up to 16K Bytes Flash Program Storage 50,000 Erase/Write Cycles
  • Up to 1K Byte SRAM Data Storage
  • In-System Serial Programming (ISSP)
  • Partial Flash Updates
  • Flexible Protection Modes
  • EEPROM Emulation in Flash
• Optimized CapSense Resource:
  • Two IDAC Support up to 640 µA Source Current to Replace External Resistor
  • Two Dedicated Clock Resources for CapSense:
    • CSD_CLK: 1/2/4/8/16/32/128/256 Derive from SYSCLK
    • CNT_CLK: 1/2/4/8 Derive from CSD_CLK
  • Dedicated 16-Bit Timers/Counters for CapSense Scanning
  • Support Dual CSD Channels Simultaneous Scanning
• Programmable Pin Configurations:
  • 25 mA Sink, 10 mA Source on all GPIO
  • Pull up, Pull down, High Z, Strong, or Open Drain Drive Modes on all GPIO
  • Up to 38 Analog Inputs on GPIO
  • Configurable Interrupt on all GPIO
• Additional System Resources:
  • I2C Slave, Master, and MultiMaster to 400 kHz
  • Supports Hardware Addressing Feature
  • Watchdog and Sleep Timers
  • User Configurable Low Voltage Detection
  • Integrated Supervisory Circuit
  • On-Chip Precision Voltage Reference
  • Supports RTC Block into Digital Peripheral Logic

Application Scenarios

The CY8C21434-24LCXI microcontroller is suitable for various applications that require a low-cost, single-chip programmable device with customizable peripheral configurations. It can be used in industrial control systems, embedded control applications, automation systems, consumer electronics, and more.

Comparison

Advantages
• Replaces multiple traditional MCU-based system components
• Configurable peripheral configurations
• Powerful Harvard Architecture Processor
• Low power at high speed
• Wide operating voltage range
• Advanced peripherals for analog and digital functions
• High-speed ADC with sample and hold optimization
• Precision programmable clocking with various options
• Flexible on-chip memory with flash program storage
• Optimized CapSense resource for touch sensing applications
• Programmable pin configurations with various drive modes
• Addition system resources such as I2C, watchdog, and voltage reference
Disadvantages
• No specific disadvantages found