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Infineon Technologies CY8C24123-24PI
- Part No.:
- CY8C24123-24PI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
CY8C24123-24PI.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,395
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Product details
Overview
CY8C24123-24PI from Cypress MicroSystems is a PSoC™ (Programmable System-on-Chip) mixed-signal array featuring an M8C 8-bit CPU core, 2 KB flash program memory, 256 bytes SRAM, and configurable analog/digital user modules including op-amps, comparators, ADCs, and PWM generators. It operates at up to 24 MHz system clock, supports 5 V operation, and targets embedded control applications with integrated signal conditioning and logic.
For engineers reviewing the CY8C24123-24PI datasheet, CY8C24123-24PI pinout, CY8C24123-24PI application, or CY8C24123-24PI equivalent, key selection criteria include flash/SRAM size, analog module configurability, 5 V I/O tolerance, IMO/ECO/PLL clocking options, and PSoC Designer toolchain compatibility.
Technical Context
The CY8C24123-24PI integrates a hardwired M8C CPU core with programmable analog and digital blocks routed via a switch matrix. Its architecture enables dynamic reconfiguration of peripherals-including dual 8-bit ADCs with 12-bit resolution in successive approximation mode, rail-to-rail op-amps, and 8-bit PWM with dead-time insertion-without external components.
It features three independent clock sources: a factory-trimmed 24 MHz Internal Main Oscillator (IMO), a 32 kHz External Crystal Oscillator (ECO), and a low-power Internal Low-Speed Oscillator (ILO). The PLL supports frequency multiplication for higher-speed operation while maintaining ECO-based timing accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit RISC processor with 24 MHz max clock and Harvard architecture |
| Flash Memory | 2 KB on-chip flash for program storage with 100 k-cycle endurance |
| SRAM | 256 bytes of volatile data memory with byte-addressable access |
| Analog Blocks | 2 op-amps, 2 comparators, 2 8-bit SAR ADCs (12-bit effective), 1 DAC |
| Digital Blocks | 8 UDBs (Universal Digital Blocks) supporting counters, timers, PWM, SPI, I²C, UART |
| Operating Voltage | 5.0 V ±10% - supports direct interface with legacy 5 V logic and sensors |
| Package | 28-pin PDIP (Plastic Dual In-line Package), 0.6-inch width, through-hole mounting |
Pinout & Package
Package: 28-pin PDIP (Plastic Dual In-line Package), 0.6-inch body width, 0.1-inch pin pitch, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Main 5 V supply for core and I/O; requires local 0.1 µF decoupling |
| VSS | Ground reference | System ground return for analog and digital sections; shared reference |
| XIN / XOUT | Crystal oscillator terminals | Connects to 32.768 kHz crystal for ECO; internal load capacitors enabled |
| P0[0]–P0[7] | Port 0 bidirectional I/O | 8-bit general-purpose port with configurable pull-up, open-drain, and analog routing |
| P1[0]–P1[3] | Port 1 bidirectional I/O | 4-bit port supporting analog input, comparator inputs, and digital functions |
| RESET | Active-low reset input | Asynchronous reset; internally pulled up; compatible with pushbutton or supervisor IC |
| SWD | Serial Wire Debug input | Single-pin debug interface for programming and real-time debugging via PSoC Designer |
Key Features
| Feature | Design Value |
|---|---|
| Configurable analog blocks | Op-amps, comparators, and ADCs can be routed and retargeted in firmware without hardware change |
| Programmable digital logic | UDBs implement custom state machines, filters, or communication protocols using schematic or Verilog |
| Integrated clock system | IMO (24 MHz), ECO (32.768 kHz), ILO (100 kHz), and PLL enable precise timing across power modes |
| 5 V tolerant I/O | All GPIO pins accept 5 V signals and drive 5 V logic levels-no level shifters needed for legacy interfaces |
| Low-power sleep modes | Three sleep states (Sleep, Deep Sleep, Halt) with wake-on-pin, timer, or interrupt; ILO/ECO maintain timing |
Applications
| Industrial Sensor Interface | Home Appliance Control |
|---|---|
|
Use Scenario: Monitoring temperature, pressure, and motor current in HVAC controllers using analog front-end and PWM fan control. IC Role / Device Role / Timing Role: Central mixed-signal controller handling sensor signal conditioning, closed-loop motor control, and UI response. Use Value: Eliminates discrete op-amps, ADCs, and logic ICs; single-chip solution reduces BOM count and layout area by >40%. |
Use Scenario: Managing wash cycle sequencing, water heating, and door lock actuation in front-load washing machines. IC Role / Device Role / Timing Role: Real-time deterministic controller coordinating analog sensing (NTC), relay drivers, and user interface feedback. Use Value: 5 V I/O tolerance enables direct connection to electromechanical relays and legacy panel displays without interface buffers. |
| Medical Diagnostic Handheld | Smart Power Outlet |
|
Use Scenario: Signal acquisition and processing for portable pulse oximeters with LED drive and photodiode amplification. IC Role / Device Role / Timing Role: Analog-intensive subsystem controller performing synchronized LED pulsing, transimpedance amplification, and ADC sampling. Use Value: On-chip op-amps and programmable gain stages reduce external component count and improve noise immunity in battery-powered designs. |
Use Scenario: Energy monitoring and remote switching in Wi-Fi-enabled smart outlets with current/voltage sensing. IC Role / Device Role / Timing Role: Local intelligence node performing RMS current measurement, zero-cross detection, and relay timing control. Use Value: Integrated 8-bit PWM with dead-time control ensures safe triac triggering; ECO maintains accurate timekeeping during deep sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal programmable controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C24223-24PI | Same core, but includes 4 KB flash and 512 bytes SRAM; identical pinout and peripheral set | Supports larger firmware images and more complex state machines without hardware redesign | Select when firmware growth or additional data buffering is anticipated |
| CY8C24423-24PI | Same architecture with 8 KB flash, 1 KB SRAM, and enhanced analog routing flexibility | Enables multi-channel sensor fusion and simultaneous communication stacks (e.g., I²C + UART) | Choose for future-proofing or applications requiring concurrent analog/digital processing bandwidth |
Compared with CY8C24223-24PI and CY8C24423-24PI, the CY8C24123-24PI offers optimal cost and footprint for fixed-function embedded control where 2 KB flash suffices and expansion headroom is not required.
Availability
CY8C24123-24PI is available at Aetrix Electronics and suitable for industrial sensor interface, home appliance control, medical diagnostic handhelds, and smart power outlet designs requiring stable component supply and long-term manufacturability.
Supply support for CY8C24123-24PI 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 MicroSystems (now part of Infineon Technologies) designed PSoC devices to merge analog and digital programmability into a single chip, targeting rapid prototyping and flexible production in cost-sensitive embedded systems.
The CY8C24xxx series was engineered for 5 V industrial and consumer control applications requiring integrated signal conditioning, deterministic timing, and field-upgradable firmware-all within a PDIP-compatible footprint.
FAQ
Is CY8C24123-24PI supported by current PSoC Designer software?
Yes. PSoC Designer v5.4 is the final officially supported IDE for CY8C24xxx devices. It provides full schematic-based design entry, device configuration, and debug via SWD. No newer Cypress tools (PSoC Creator or ModusToolbox) support this legacy M8C-based family.
Does CY8C24123-24PI support in-system programming (ISP)?
Yes. Programming is performed via the SWD pin using a MiniProg1 or compatible programmer. Firmware updates can be executed in-circuit without removing the device, provided VDD is stable and RESET is accessible during programming sequences.
What is the maximum operating temperature for CY8C24123-24PI in PDIP package?
The CY8C24123-24PI is rated for industrial temperature range: –40 °C to +85 °C ambient. Thermal performance is validated per JEDEC JESD51-2 with natural convection; no heatsink required at ≤10 mA average I/O current and 24 MHz operation.
Can analog blocks operate independently while the CPU is in Deep Sleep mode?
Yes. Analog blocks-including the ADC, op-amps, and comparators-can remain active and generate interrupts during Deep Sleep. The ILO or ECO continues running to clock analog timing, enabling autonomous sensor wake-up without CPU intervention.
CY8C24123-24PI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- PSOC™1 CY8C24xxx
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 6
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.25V
- Data Converters:
- A/D 2x14b; D/A 2x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
CY8C24123-24PI FAQ
1.How can I place an order for CY8C24123-24PI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C24123-24PI 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 CY8C24123-24PI reliable?
The price and inventory of CY8C24123-24PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C24123-24PI is usually 5 days.
3.What payment methods are accepted for CY8C24123-24PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C24123-24PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C24123-24PI?
CY8C24123-24PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C24123-24PI 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 CY8C24123-24PI?
For technical support, including CY8C24123-24PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C24123-24PI requirements.
6.How does Aetrix verify that CY8C24123-24PI is sourced from the original manufacturer or authorized distributors?
All CY8C24123-24PI 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 CY8C24123-24PI meets industry standards.
7.What is the process for return or replacement of CY8C24123-24PI?
All CY8C24123-24PI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C24123-24PI, 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 CY8C24123-24PI part is unused and in its original packaging.
Return procedure for CY8C24123-24PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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