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Infineon Technologies CY8C28623-24LTXI
- Part No.:
- CY8C28623-24LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY8C28623-24LTXI.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,027
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Product details
Overview
CY8C28623-24LTXI from Infineon Technologies (formerly Cypress Semiconductor) is a programmable System-on-Chip (PSoC® 1) integrating an M8C 8-bit Harvard-architecture CPU, 16 KB flash, 1 KB SRAM, up to 12 digital PSoC blocks, and up to 16 analog PSoC blocks - supporting mixed-signal embedded control in industrial sensors and motor interfaces operating from 3.0 V to 5.25 V at –40 °C to +85 °C.
For engineers reviewing the CY8C28623-24LTXI datasheet, CY8C28623-24LTXI pinout, CY8C28623-24LTXI application, or CY8C28623-24LTXI equivalent, key selection criteria include its 24 MHz IMO clock accuracy (±2.5%), configurable GPIO drive modes (25 mA sink), rail-to-rail analog block support (14-bit SAR ADC, 9-bit DAC), and ISSP-enabled in-system programming for rapid firmware iteration in resource-constrained designs.
Technical Context
The CY8C28623-24LTXI implements a fixed-function M8C core with Harvard architecture, executing instructions from on-chip flash while accessing data in SRAM. It features dual clock domains: a ±2.5% 24 MHz internal main oscillator (IMO) for active operation and a low-power 32 kHz internal low-speed oscillator (ILO) for watchdog and sleep timing.
Analog resources include up to 12 rail-to-rail PSoC blocks supporting SAR ADCs (up to 142 ksps), delta-sigma ADCs, programmable gain amplifiers, and comparators with DAC references; digital resources include up to 12 configurable 8-bit blocks enabling UARTs (3 full-duplex), SPI (variable-length), PWMs, timers, and CRC modules - all routed via global interconnect to 28 I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max operation - enables deterministic real-time control without external memory bus overhead. |
| Flash Memory | 16 KB program storage with 50,000 erase/write cycles - supports field firmware updates and EEPROM emulation. |
| SRAM | 1 KB on-chip data RAM - sufficient for stack, variables, and small buffers in sensor or actuator control loops. |
| Analog Blocks | Up to 16 configurable analog PSoC blocks - deliver mixed-signal flexibility including 14-bit SAR ADC, 9-bit DAC, PGA, and comparator with programmable reference. |
| Digital Blocks | Up to 12 digital PSoC blocks - enable synthesis of UARTs, PWMs, timers, SPI, I²C, and CRC with pin-agnostic routing. |
| Operating Voltage | 3.0 V to 5.25 V supply range - compatible with legacy industrial 5 V logic and modern 3.3 V systems without level-shifting. |
| Temperature Range | –40 °C to +85 °C industrial grade - validated for use in motor drives, PLC I/O modules, and factory automation equipment. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 3.0–5.25 V; powers core, analog, and digital subsystems - requires local 0.1 µF decoupling. |
| VSS | Ground reference | Common return path for analog/digital circuits; separate analog/digital ground routing recommended. |
| P0[0]–P0[7] | Port 0 bidirectional I/O | Configurable as GPIO, analog input, or digital peripheral interface; supports 25 mA sink, interrupt-on-change. |
| P1[0]–P1[7] | Port 1 bidirectional I/O | Same drive and analog capability as Port 0; connects to global digital/analog interconnect for flexible peripheral mapping. |
| XIN/XOUT | External crystal oscillator terminals | Supports 32.768 kHz crystal for RTC or optional ECO-based PLL clock generation. |
| RESET | Active-low reset input | Asynchronous hardware reset; internally pulled up; compatible with open-drain or push-pull reset sources. |
Key Features
| Feature | Design Value |
|---|---|
| In-system serial programming (ISSP) | Enables firmware updates over two-wire interface without removing device from PCB - critical for field-deployed industrial controllers. |
| Configurable GPIO drive modes | 8 modes per pin (strong, open-drain, pull-up/down, high-Z, etc.) - eliminates need for external biasing components in diverse interface scenarios. |
| Rail-to-rail analog blocks | Supports full-supply-range signal conditioning - allows direct interfacing with unbuffered sensors and actuators without external op-amps. |
| Global digital/analog interconnect | Connects any peripheral block to any GPIO - enables dynamic reconfiguration of signal paths without hardware changes. |
| Switched-mode pump (SMP) | Generates internal voltages down to 1.5 V operation - extends battery life in low-power sensor nodes while retaining full analog functionality. |
Applications
| Industrial Motor Control | Capacitive Touch Interface |
|---|---|
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Mixed-signal controller executing PID algorithms, generating PWM gate signals, and sampling current/voltage feedback via SAR ADC. Use Value: Integrated 142 ksps SAR ADC and 16-bit PWM with dead-band control eliminate external ADC and gate-driver ICs - reducing BOM count and board area. | Use Scenario: Multi-button touch panel for industrial HMI panels exposed to oil, dust, and ESD. IC Role / Device Role / Timing Role: Capacitive sensing engine using Type E analog blocks with shielded electrode support and noise-immune correlation-based measurement. Use Value: On-chip capacitive sensing with programmable scan resolution and automatic baseline tracking enables robust touch detection without dedicated touch-controller IC. |
| Programmable Logic Controller I/O Module | Smart Sensor Signal Conditioning |
Use Scenario: Digital input/output expansion module for DIN-rail mounted PLCs handling 24 V DC field signals. IC Role / Device Role / Timing Role: Configurable digital I/O hub with programmable debounce, edge-triggered interrupts, and isolated signal translation via GPIO drive modes. Use Value: 25 mA sink capability and 8 drive modes per pin allow direct interfacing with industrial 24 V sensors/actuators - eliminating discrete transistor buffers. | Use Scenario: Analog front-end for temperature, pressure, and strain gauges in predictive maintenance sensors. IC Role / Device Role / Timing Role: Precision signal conditioner with PGA, programmable filter, and 14-bit ADC - digitizing mV-level bridge outputs with <1 LSB INL. Use Value: Rail-to-rail analog blocks with integrated voltage reference and programmable gain reduce external component count by ≥40% vs. discrete op-amp solutions. |
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 |
|---|---|---|---|
| CY8C28443-24LTXI | Fewer analog blocks (12 vs. 16), no Type E blocks - reduced capacitive sensing capability. | Suitable for simpler analog acquisition tasks without multi-channel delta-sigma or dual-capacitance sensing. | Select when design requires only basic SAR ADC and PGA functions - lower cost and identical package/pinout. |
| CY8C28643-24LTXI | Full analog resource set (16 blocks + 4 Type E), higher pin count (56-pin LQFP) - adds extra GPIO and analog routing flexibility. | Required for designs needing >28 I/O or simultaneous multi-sensor analog acquisition with independent delta-sigma channels. | Select when expanding analog channel count or adding CapSense + SAR ADC concurrently - same core and firmware compatibility. |
Compared with CY8C28443-24LTXI, this part delivers expanded analog integration for complex sensor fusion; compared with CY8C28643-24LTXI, it trades I/O count for compact 48-pin footprint - ideal for space-constrained industrial modules where full analog capability is needed but pin count is limited.
Availability
CY8C28623-24LTXI is available at Aetrix Electronics and suitable for industrial motor control, programmable logic controller I/O modules, and smart sensor signal conditioning requiring stable component supply across extended product lifecycles.
Supply support for CY8C28623-24LTXI 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
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, industrial, and IoT solutions with vertical integration from silicon to system-level software.
This device belongs to the PSoC® 1 family - designed specifically for cost-sensitive, mixed-signal embedded control applications where programmable analog/digital peripherals replace multiple discrete ICs in industrial and consumer systems.
FAQ
Does CY8C28623-24LTXI support USB connectivity?
No. The CY8C28623-24LTXI does not include a USB physical layer or USB controller. It supports UART, SPI, and I²C for host communication. For USB interface, external bridge ICs (e.g., CP2102) or migration to PSoC 3/4 families with native USB are required.
What development tools are required to program CY8C28623-24LTXI?
PSoC Designer™ (legacy Windows IDE) is mandatory for configuration and code generation. Programming requires MiniProg1 or MiniProg3 debuggers. No ARM-based tools or modern PSoC Creator support - toolchain is fixed to Cypress' discontinued but fully functional PSoC 1 ecosystem.
Can CY8C28623-24LTXI operate below 3.0 V?
Yes - down to 1.5 V using the on-chip switched-mode pump (SMP). At sub-3.0 V operation, analog block performance degrades: SAR ADC resolution reduces to 12 bits, and maximum CPU speed drops to 12 MHz. Full specification compliance requires 3.0–5.25 V.
Is there hardware I²C support in CY8C28623-24LTXI?
Yes - two dedicated hardware I²C system resources are included, each supporting slave, master, or multi-master modes with clock rates from 0 to 400 kHz. These are implemented in silicon, not bit-banged, ensuring deterministic timing and low CPU overhead during bus transactions.
CY8C28623-24LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- PSOC™1 CY8C28xxx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.25V
- Data Converters:
- A/D 4x14b; D/A 4x9b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C28623-24LTXI FAQ
1.How can I place an order for CY8C28623-24LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C28623-24LTXI 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 CY8C28623-24LTXI reliable?
The price and inventory of CY8C28623-24LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C28623-24LTXI is usually 5 days.
3.What payment methods are accepted for CY8C28623-24LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C28623-24LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C28623-24LTXI?
CY8C28623-24LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C28623-24LTXI 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 CY8C28623-24LTXI?
For technical support, including CY8C28623-24LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C28623-24LTXI requirements.
6.How does Aetrix verify that CY8C28623-24LTXI is sourced from the original manufacturer or authorized distributors?
All CY8C28623-24LTXI 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 CY8C28623-24LTXI meets industry standards.
7.What is the process for return or replacement of CY8C28623-24LTXI?
All CY8C28623-24LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY8C28623-24LTXI, 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 CY8C28623-24LTXI part is unused and in its original packaging.
Return procedure for CY8C28623-24LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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