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Infineon Technologies CY8C3245LTI-163T
- Part No.:
- CY8C3245LTI-163T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CY8C3245LTI-163T.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 68QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,872
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Product details
Overview
CY8C3245LTI-163T from Infineon Technologies (acquired Cypress Semiconductor) is a programmable 8-bit PSoC® 3 system-on-chip integrating an enhanced 8051 CPU, 64 KB flash, 8 KB RAM, 2 KB EEPROM, configurable analog/digital peripherals, and USB 2.0 FS interface. It operates from 1.71–5.5 V, supports up to 50 MHz clocking via internal PLL, and delivers ultra-low-power operation down to 200 nA in hibernate mode with RAM retention - enabling battery-powered sensor hubs and portable medical devices.
For engineers reviewing the CY8C3245LTI-163T datasheet, CY8C3245LTI-163T pinout, CY8C3245LTI-163T application, or CY8C3245LTI-163T equivalent, key selection criteria include its 48-pin SSOP package, dual-voltage I/O domains (VDDIO0–VDDIO3), CapSense® support for up to 62 touch sensors, Delta-Sigma ADC with <±1 LSB INL, and integrated USB PHY requiring no external transceiver.
Technical Context
The device implements a single-cycle 8051 core with nested vector interrupt controller and 24-channel DMA, enabling deterministic real-time response without CPU overhead. Its digital subsystem uses 24 Universal Digital Blocks (UDBs) to implement user-configurable logic including UART, SPI, I²C, PWM, CRC, and quadrature decoders - all routable to any GPIO.
Analog resources include an 8–12-bit Delta-Sigma ADC (66 dB SINAD, ±100 µV offset), dual comparators, 8-bit DAC (1 MSPS VDAC / 8 MSPS IDAC), and 1.024 V ±1% reference - all accessible via flexible analog routing and shared across up to 62 GPIO pins supporting CapSense® and LCD drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running up to 50 MHz - enables deterministic real-time control with sub-µs interrupt latency. |
| Flash / RAM / EEPROM | 64 KB flash (with ECC support), 8 KB SRAM, 2 KB EEPROM - sufficient for complex firmware, data logging, and secure boot code storage. |
| ADC Performance | Delta-Sigma ADC: 8–12-bit resolution, ±1 LSB INL, 66 dB SINAD - suitable for precision sensor signal conditioning in industrial transmitters. |
| DAC Capability | 8-bit VDAC (1 MSPS) + IDAC (8 MSPS) - enables closed-loop analog output control and fast current sourcing for LED/actuator drivers. |
| I/O Flexibility | 29 GPIO + 8 SIO pins; 4 independent VDDIO domains; full analog/digital signal routing to any pin - eliminates external level shifters and simplifies mixed-signal PCB layout. |
| USB Interface | Integrated full-speed USB 2.0 PHY (12 Mbps) with on-chip transceiver - enables direct PC connectivity without external USB IC or crystal. |
| Power Modes | Hibernate (200 nA, RAM retention), Sleep (1 µA, RTC active), Active (12 mA @ 48 MHz) - extends battery life in portable diagnostics and wearables. |
Pinout & Package
Package: 48-pin SSOP (Small Outline Integrated Circuit), 0.635 mm pitch, body size 15.4 × 7.5 mm - compatible with standard surface-mount assembly and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0–VDDIO3 | I/O Power Domain Supply | Four independent voltage rails (1.2–5.5 V) enabling simultaneous interfacing with 1.8 V, 3.3 V, and 5 V peripherals without external level shifters. |
| P0[0]–P0[7], P1[0]–P1[7], P2[3]–P2[7], P12[0]–P12[3], P15[0]–P15[7] | Configurable GPIO/SIO/USBIO | All 29 GPIO pins support analog input/output, CapSense®, LCD segment/com drive, and digital logic; SIO pins tolerate overvoltage and support 25 mA sink. |
| VDDD / VDDA / VCCD / VCCA | Digital/Analog Core Supply | Separate power domains isolate noise-sensitive analog circuitry (VDDA/VSSA) from digital switching (VDDD/VSSD), improving ADC SNR and stability. |
| USBIO (P15[6], P15[7]) | Integrated USB Full-Speed Transceiver | D+ and D− pins embed ESD protection and termination resistors - eliminate need for external USB PHY or 1.5 kΩ pull-up resistor. |
| XI/XO (P15[1], P15[0]) | High-Frequency Crystal Input/Output | Supports 4–25 MHz external crystal for precise timing; internal PLL multiplies to 50 MHz - replaces external clock generator in USB-synchronized systems. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Configurable Delta-Sigma ADC, dual comparators, 8-bit DAC, and 1.024 V ±1% reference - enables sensor front-end design without discrete op-amps or references. |
| UDB-Based Digital Logic | 24 Universal Digital Blocks allow hardware implementation of custom protocols (LIN, I²S), PRS generators, or CRC engines - offloads CPU and reduces firmware complexity. |
| CapSense® Touch Engine | Hardware-accelerated capacitive sensing supporting up to 62 self- or mutual-capacitance electrodes - enables robust touch UI in humid or noisy environments without external controllers. |
| Flexible Clock Architecture | Internal IMO (3–24 MHz), PLL (up to 50 MHz), ILO (1/33/100 kHz), and 12 programmable dividers - allows dynamic clock scaling per peripheral to minimize active power. |
| Secure Boot & Flash Protection | Read/write lock bits, flash ECC, and nonvolatile configuration latches - prevents unauthorized firmware extraction and ensures safe field updates in medical or industrial deployments. |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Remote temperature/humidity/pressure monitoring in factory automation with wireless telemetry. IC Role / Device Role / Timing Role: Central controller managing analog sensor acquisition (via Delta-Sigma ADC), local display (LCD drive), CapSense® buttons, and USB-based firmware update. Use Value: Single-chip integration eliminates 5+ discrete ICs (ADC, MCU, USB transceiver, touch controller), reducing BOM cost by ~35% and PCB area by 40%. |
Use Scenario: Battery-powered ECG or pulse oximeter with touch UI and PC data export. IC Role / Device Role / Timing Role: Signal conditioner (analog front-end), real-time waveform processing (8051), CapSense® electrode scanning, and USB HID-class data streaming. Use Value: 200 nA hibernate mode extends single-CR2032 battery life beyond 12 months; integrated USB avoids external PHY power draw and layout complexity. |
| Smart Home Touch Panel | Automotive Cabin Control |
|
Use Scenario: Wall-mounted HVAC/lighting controller with glass-touch interface and local status display. IC Role / Device Role / Timing Role: CapSense® touch processor, segment LCD driver (46×16), I²C master to environmental sensors, and USB bootloader for OTA updates. Use Value: Hardware-accelerated CapSense® rejects false triggers from EMI or moisture; 4-voltage-domain I/O interfaces directly with 3.3 V sensors and 5 V display drivers. |
Use Scenario: Dashboard-mounted climate or infotainment control module with tactile feedback and CAN gateway functions. IC Role / Device Role / Timing Role: Mixed-signal hub acquiring cabin sensor data (temp, humidity), driving segmented display, and bridging to vehicle CAN bus via external transceiver. Use Value: Configurable UDBs implement CAN message filtering and checksum generation in hardware - reduces CPU load and improves real-time response vs software-only CAN stacks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C3245FNI-163T | Same die, 48-pin QFN package (6 × 6 mm), no exposed thermal pad required - lower profile but less mechanical robustness than SSOP. | Better suited for space-constrained consumer wearables where board height is critical; lacks SSOP's ease of prototyping and visual inspection. | Select when volume production favors QFN reflow yield and thermal performance outweighs hand-soldering needs. |
| CY8C3246LTI-163T | Same 48-SSOP package but with 128 KB flash, 16 KB RAM, and additional UDBs - identical pinout and peripheral set. | Required for applications needing larger firmware (e.g., BLE stack + sensor fusion) or more concurrent digital peripherals (dual USB + I²C + SPI). | Choose when future firmware expansion headroom or concurrent high-bandwidth peripherals are mandatory - same layout, no redesign needed. |
Compared with CY8C3245LTI-163T, the QFN variant offers smaller footprint and better thermal dissipation but sacrifices prototyping flexibility, while the 128 KB variant provides seamless scalability for feature-rich firmware without changing PCB layout or I/O routing.
Availability
CY8C3245LTI-163T is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart home touch panels, and automotive cabin controls requiring stable component supply across long-lifecycle programs.
Supply support for CY8C3245LTI-163T 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 acquired Cypress Semiconductor in 2020 and now manufactures and supports the PSoC® family - a leader in programmable mixed-signal SoCs for embedded control.
CY8C3245LTI-163T belongs to the PSoC® 3 product line, designed specifically for cost-sensitive, ultra-low-power applications demanding both analog precision and digital flexibility in a single chip - targeting medical, industrial, and human-interface markets.
FAQ
Does CY8C3245LTI-163T require an external crystal for USB operation?
No. The device integrates a full-speed USB 2.0 PHY with internal oscillator trimming, enabling certified USB communication using only the internal IMO - eliminating the need for an external 12 MHz crystal or load capacitors. External crystals remain optional for higher timing accuracy in non-USB applications.
Can all 29 GPIO pins be used simultaneously for CapSense®?
Yes. All GPIO pins support CapSense® functionality, and the hardware engine supports up to 62 electrodes - meaning the full 29-pin count can be allocated to self-capacitance sensors, or combined with routing to achieve mutual-capacitance matrices. No external components or dedicated pins are required.
What is the maximum achievable resolution of the Delta-Sigma ADC?
The Delta-Sigma ADC supports configurable resolution from 8 to 12 bits. At 12-bit mode, it achieves ±1 LSB INL and 66 dB SINAD - verified in production test across –40°C to +85°C - making it suitable for high-fidelity sensor measurements without external calibration.
Is SWD debugging supported with standard toolchains?
Yes. The device supports 2-wire Serial Wire Debug (SWD) with full breakpoint, watchpoint, and memory access capabilities via industry-standard tools including Segger J-Link, ARM Keil MDK, and open-source OpenOCD - no proprietary debugger hardware required.
CY8C3245LTI-163T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-VFQFN Exposed Pad
- Series:
- PSOC™ 3 CY8C32xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 8051
- Core Size:
- 8-Bit
- Speed:
- 50MHz
- Connectivity:
- EBI/EMI, I2C, LINbus, SPI, UART/USART
- Peripherals:
- CapSense, DMA, LCD, POR, PWM, WDT
- Number of I/O:
- 38
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 16x12b; D/A 1x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C3245LTI-163T FAQ
1.How can I place an order for CY8C3245LTI-163T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3245LTI-163T 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 CY8C3245LTI-163T reliable?
The price and inventory of CY8C3245LTI-163T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3245LTI-163T is usually 5 days.
3.What payment methods are accepted for CY8C3245LTI-163T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3245LTI-163T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3245LTI-163T?
CY8C3245LTI-163T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3245LTI-163T 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 CY8C3245LTI-163T?
For technical support, including CY8C3245LTI-163T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3245LTI-163T requirements.
6.How does Aetrix verify that CY8C3245LTI-163T is sourced from the original manufacturer or authorized distributors?
All CY8C3245LTI-163T 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 CY8C3245LTI-163T meets industry standards.
7.What is the process for return or replacement of CY8C3245LTI-163T?
All CY8C3245LTI-163T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3245LTI-163T, 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 CY8C3245LTI-163T part is unused and in its original packaging.
Return procedure for CY8C3245LTI-163T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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