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Infineon Technologies CY8C21223-24LGXIT
- Part No.:
- CY8C21223-24LGXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 16-UFQFN
- Datasheet:
-
CY8C21223-24LGXIT.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,999
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Product details
Overview
CY8C21223-24LGXIT from Cypress Semiconductor is a programmable 8-bit Harvard-architecture PSoC® SoC featuring an M8C core running up to 24 MHz, 4 KB flash, 256 bytes SRAM, and integrated analog/digital PSoC blocks for configurable peripherals. It operates from 2.4 V to 5.25 V (or down to 1.0 V with on-chip switch-mode pump), supports industrial temperature range (–40 °C to +85 °C), and targets embedded control in space-constrained industrial sensors and low-power HMI interfaces.
For engineers reviewing the CY8C21223-24LGXIT datasheet, CY8C21223-24LGXIT pinout, CY8C21223-24LGXIT application, or CY8C21223-24LGXIT equivalent, key selection criteria include its 24-pin SOIC package, dual 10-bit ADC capability, four digital PSoC blocks supporting PWM/timers/UART/SPI/I²C, and flexible GPIO drive modes (25-mA sink, 10-mA source) with analog input support on all pins.
Technical Context
The CY8C21223-24LGXIT implements a fully configurable mixed-signal architecture built around a 24 MHz M8C CPU core, with separate global digital and analog interconnects enabling dynamic routing of signals between four digital PSoC blocks and four analog Type "E" blocks. Its internal ±5% IMO oscillator and ±2.5% tolerance at 0–70 °C enable precise timing without external crystals in cost-sensitive applications.
Digital resources include 8- to 32-bit timers/counters, 8-/16-bit PWMs with dead-band, full-duplex UART, SPI master/slave, and I²C up to 400 kHz - all connectable to any GPIO via programmable routing. Analog resources comprise two comparators with DAC or 1.3 V reference, and single/dual 10-bit 8-to-1 ADCs - all configurable through PSoC Designer™ software without hardware changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| M8C Core Speed | Up to 24 MHz - enables real-time sensor fusion and fast interrupt response in compact firmware. |
| Flash Memory | 4 KB with 50,000 erase/write cycles - supports field firmware updates and EEPROM emulation. |
| SRAM | 256 bytes - sufficient for stack, variables, and small state machines in ultra-low-footprint designs. |
| Analog Inputs | Up to eight channels on GPIO - allows direct connection of thermistors, potentiometers, or voltage dividers without external mux. |
| Digital Peripherals | Four digital PSoC blocks - configurable as UART, SPI, I²C, PWM, timers, CRC, or PRS without fixed-function limitations. |
| GPIO Drive | 25 mA sink / 10 mA source per pin - drives LEDs, small relays, or logic-level MOSFETs directly. |
| Operating Voltage | 2.4 V to 5.25 V (or 1.0 V with SMP) - supports single-cell Li-ion, alkaline, or regulated 3.3 V/5 V rails. |
Pinout & Package
Package: 24-pin SOIC (Small Outline Integrated Circuit), 300 mil width, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main supply rail (2.4–5.25 V); powers core, digital, and analog systems. |
| VSS | Ground reference | Common return path for all circuits; must be low-impedance for ADC stability. |
| P0[0]–P0[7] | Programmable GPIO | Eight bidirectional pins with analog input capability, pull-up/down, open-drain, and interrupt support. |
| P1[0]–P1[7] | Programmable GPIO | Additional eight pins with identical configuration options and analog input support. |
| P2[0]–P2[7] | Programmable GPIO | Final eight pins; all support analog inputs, high-drive modes, and configurable interrupts. |
| XRES | External reset input | Active-low asynchronous reset; internal pull-up ensures reliable startup without external component. |
| XTALIN/XTALOUT | Crystal oscillator interface | Optional external crystal connection; not required due to internal IMO/ILO oscillators. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable PSoC Blocks | Four digital and four analog blocks allow runtime-reconfigurable peripherals - eliminates need for multiple discrete ICs in sensor nodes. |
| Switch-Mode Pump (SMP) | Generates regulated 3.3 V or 5 V from 1.2 V battery - enables single-cell operation without external DC-DC converter. |
| Programmable Clocking | Internal ±5% IMO (24/48 MHz) and ±10% ILO - reduces BOM count by removing external clock sources in non-critical timing apps. |
| I/O Flexibility | All 24 GPIO support analog input, 25-mA sink, and interrupt-on-change - simplifies PCB layout and enables shared signal routing across subsystems. |
| In-System Programming | ISSP interface uses only two pins (SDA/SCL or SWD-like) - allows firmware updates in final assembly or field without dedicated programming header. |
Applications
| Industrial Sensor Node | Smart Thermostat Interface |
|---|---|
Use Scenario: Compact environmental monitoring unit measuring temperature, humidity, and air quality with local display and wireless reporting. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, PWM fan control, UART communication to BLE module, and LVD-based brownout protection. Use Value: Single-chip integration replaces MCU + ADC + comparator + voltage supervisor - reducing board area by >40% and eliminating inter-IC timing skew. | Use Scenario: Wall-mounted HVAC controller with touch-sensitive buttons, LCD backlight dimming, and relay-driven valve actuation. IC Role / Device Role / Timing Role: Mixed-signal coordinator handling capacitive touch sensing, 10-bit ADC for thermistor readings, 16-bit PWM for backlight control, and I²C to display driver. Use Value: All analog and digital functions implemented in one die - avoids external RC networks for touch debounce and enables synchronized PWM/ADC timing. |
| Low-Power Remote Keypad | Embedded Motor Control Module |
Use Scenario: Battery-powered access keypad with wake-on-keypress, LED feedback, and encrypted RF transmission. IC Role / Device Role / Timing Role: Ultra-low-power system manager using ILO for sleep timer, SMP for 3.3 V rail, and GPIO-interrupt-driven wake event detection. Use Value: 1.0 V operation with SMP extends battery life beyond 5 years in standby - no external LDO or boost converter required. | Use Scenario: Small BLDC motor driver for appliance fans, requiring speed regulation, overcurrent detection, and thermal shutdown. IC Role / Device Role / Timing Role: Real-time controller generating complementary PWM with dead-band, reading current-sense ADC, and triggering fault interrupts. Use Value: Hardware-synchronized PWM/ADC capture ensures <1 µs timing alignment - critical for accurate current reconstruction and torque ripple reduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PSOC4000S (CY8C4045AZI-S412) | ARM Cortex-M0+, 32-bit, 48 MHz, 32 KB flash, 4 KB SRAM, CapSense®-optimized, no SMP | Requires external regulator for sub-2.4 V operation; superior for complex UI but higher power in deep sleep | Select when migrating to 32-bit firmware ecosystem or needing CapSense® with >100 electrodes |
| MAX32660 | ARM Cortex-M4F, 96 MHz, 256 KB flash, 96 KB SRAM, integrated ADC/DAC, no programmable analog blocks | Lacks configurable analog routing; relies on fixed-function peripherals and external op-amps for signal conditioning | Choose for high-precision sensor fusion with floating-point math, where analog flexibility is secondary to compute throughput |
Compared with CY8C21223-24LGXIT, PSOC4000S offers modern ARM toolchain support and CapSense® scalability but requires external power management below 2.4 V; MAX32660 delivers higher processing headroom and precision ADC performance but forfeits the analog block configurability essential for custom sensor front-ends.
Availability
CY8C21223-24LGXIT is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat interfaces, low-power remote keypads, and embedded motor control modules requiring stable component supply and long-term manufacturability.
Supply support for CY8C21223-24LGXIT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Cypress Semiconductor (now part of Infineon Technologies) designs high-performance, low-power programmable mixed-signal ICs for embedded control, connectivity, and security applications.
The CY8C21x23 PSoC® family targets cost-sensitive, space-constrained industrial and consumer systems requiring analog/digital integration without external components - emphasizing configurability, single-supply operation, and rapid prototyping.
FAQ
Is CY8C21223-24LGXIT supported by current development tools?
Yes - PSoC Designer™ v5.4 remains the official IDE for CY8C21x23 devices and is fully supported with component libraries, debugger integration, and ISSP programming. While newer PSoC Creator™ and ModusToolbox™ do not support this legacy M8C architecture, Cypress maintains archived tool downloads and documentation for ongoing maintenance.
Does CY8C21223-24LGXIT require an external crystal for accurate timing?
No - it includes an internal main oscillator (IMO) trimmed to ±5% at 24/48 MHz and a low-speed oscillator (ILO) for watchdog/sleep. External crystals are optional and only needed if tighter frequency tolerance (e.g., <±1%) is required for UART baud rate accuracy or synchronous communication.
Can all 24 GPIO pins be used simultaneously as analog inputs?
No - while all GPIO support analog input functionality, the CY8C21223-24LGXIT's analog system provides only eight analog input channels via its two 10-bit ADCs (single or dual mode). Simultaneous sampling is limited to eight channels; additional signals require time-multiplexed acquisition or external analog switches.
What is the maximum operating temperature for sustained 24 MHz operation?
The device maintains full 24 MHz operation across its specified industrial temperature range of –40 °C to +85 °C. Electrical characteristics including timing margins, ADC accuracy, and GPIO drive strength are guaranteed within this range per the Rev. AC datasheet (Document No. 38-12022).
CY8C21223-24LGXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 16-UFQFN
- Series:
- PSOC™1 CY8C21xxx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.25V
- Data Converters:
- A/D 8x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C21223-24LGXIT FAQ
1.How can I place an order for CY8C21223-24LGXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C21223-24LGXIT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C21223-24LGXIT reliable?
The price and inventory of CY8C21223-24LGXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C21223-24LGXIT is usually 5 days.
3.What payment methods are accepted for CY8C21223-24LGXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C21223-24LGXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C21223-24LGXIT?
CY8C21223-24LGXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C21223-24LGXIT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C21223-24LGXIT?
For technical support, including CY8C21223-24LGXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C21223-24LGXIT requirements.
6.How does Aetrix verify that CY8C21223-24LGXIT is sourced from the original manufacturer or authorized distributors?
All CY8C21223-24LGXIT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C21223-24LGXIT meets industry standards.
7.What is the process for return or replacement of CY8C21223-24LGXIT?
All CY8C21223-24LGXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C21223-24LGXIT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C21223-24LGXIT part is unused and in its original packaging.
Return procedure for CY8C21223-24LGXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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