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Infineon Technologies CY8C3246LTI-162T
- Part No.:
- CY8C3246LTI-162T
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY8C3246LTI-162T.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
CY8C3246LTI-162T from Infineon Technologies (acquired Cypress Semiconductor) is a programmable 8-bit PSoC® 3 system-on-chip integrating an 8051 CPU core, 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 at up to 50 MHz, supports CapSense® for up to 62 touch sensors, and targets embedded control in industrial HMI, medical sensor nodes, and low-power IoT endpoints.
For engineers reviewing the CY8C3246LTI-162T datasheet, CY8C3246LTI-162T pinout, CY8C3246LTI-162T application, or CY8C3246LTI-162T equivalent, key selection criteria include its 48-QFN package, 29 GPIOs with analog routing flexibility, integrated 8-bit DAC and Delta-Sigma ADC (12-bit effective), USBIO capability, and support for SWD/JTAG debug with 200 nA hibernate mode.
Technical Context
The device implements a single-cycle 8051 CPU running at up to 50 MHz via internal PLL, backed by a 24-channel DMA controller and nested vector interrupt controller for sub-μs latency. Its digital subsystem uses 24 Universal Digital Blocks (UDBs) to implement configurable peripherals including UART, SPI, I²C, PWM, PRS, and CRC - all routable to any GPIO.
Analog resources include an 8–12-bit Delta-Sigma ADC (INL <±1 LSB, SINAD >66 dB), dual comparators, 8-bit voltage/current DACs, and dedicated CapSense® blocks. All analog signals route through a shared analog interconnect, enabling simultaneous use of ADC, DAC, and comparators on shared pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051, max 50 MHz - enables real-time deterministic control without external timing constraints. |
| Flash / RAM / EEPROM | 64 KB flash (with ECC), 8 KB RAM, 2 KB EEPROM - sufficient for bootloader + application + persistent calibration data storage. |
| ADC Performance | Delta-Sigma, 12-bit effective resolution, INL <±1 LSB, SINAD >66 dB - suitable for precision sensor signal conditioning (e.g., thermistor, strain gauge). |
| DAC Output | 8-bit VDAC (1 Msps) and IDAC (8 Msps), routable to any GPIO - supports closed-loop analog actuation (e.g., bias control, LED dimming). |
| USB Interface | Full-Speed USB 2.0 (12 Mbps), TID#40770053 certified, uses internal IMO - eliminates need for external crystal or PHY in HID/class-compliant designs. |
| Low-Power Modes | 200 nA hibernate (RAM retention), 1 µA sleep (RTC active) - enables multi-year battery life in coin-cell-powered edge devices. |
| I/O Flexibility | 29 GPIOs + 4 SIOs, all support CapSense®, LCD drive, analog routing, and programmable thresholds - reduces BOM count in HMI and sensor fusion applications. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), exposed thermal pad (VSSD-connected). Pin functions validated per Cypress CY8C3246LTI-162T datasheet Figure 2-4 and Table 2-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO0 / VDDIO1 / VDDIO2 / VDDIO3 | I/O power domains | Enable mixed-voltage interfacing (1.8/2.5/3.3/5.0 V) without external level shifters; each domain powers specific GPIO groups. |
| P0[0]–P0[7], P1[0]–P1[7], P2[3]–P2[7] | Configurable GPIO/SIO | All support analog routing, CapSense®, LCD segment/com drive, and programmable drive strength/slew rate. |
| P15[0]/P15[1] | Crystal oscillator input/output (MHz XTAL) | Supports 4–25 MHz external crystal for precise clocking; optional when using internal IMO or PLL. |
| P15[6]/P15[7] | USBIO D+/D− | Integrated USB 2.0 FS transceiver; usable as GPIO or SWDIO/SWDCK when USB disabled. |
| P1[3]/P1[2]/P1[4]/P1[5] | JTAG/SWD debug interface | 2-wire SWD (SWDIO/SWDCK) or 4-wire JTAG (TMS/TCK/TDO/TDI) - enables in-circuit programming and real-time trace. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Analog Subsystem | Delta-Sigma ADC + dual comparators + 8-bit DAC + reference (1.024 V ±1%) - enables self-contained analog front-end for sensor acquisition and feedback control. |
| UDB-Based Digital Peripherals | 24 Universal Digital Blocks generate UART, SPI, I²C, PWM, PRS, CRC, quadrature decoder - eliminates discrete logic or protocol ICs in custom interfaces. |
| CapSense® Integration | Hardware-accelerated capacitive sensing engine supporting up to 62 buttons/sliders - delivers noise-immune touch UI with <10 μs scan time per sensor. |
| Flexible Clock Architecture | Internal IMO (3–24 MHz, ±2%), PLL (up to 50 MHz), ILO (1/33/100 kHz), and 32.768 kHz RTC support - allows dynamic clock scaling for power/performance trade-offs. |
| Power Management | Integrated boost converter (0.5 V input → 5 V output), four independent LDOs, and six voltage domains - enables direct battery or energy-harvesting supply without external PMIC. |
Applications
| Industrial HMI Panel | Portable Medical Sensor Node |
|---|---|
|
Use Scenario: Touch-enabled control panel for PLC interface with LED status indicators and analog sensor readouts. IC Role / Device Role / Timing Role: Central controller managing CapSense® buttons, driving 4×16 segment LCD, acquiring temperature/pressure via Delta-Sigma ADC, and communicating via USB HID. Use Value: Single-chip integration replaces MCU + touch controller + display driver + analog front-end, reducing PCB area by >40% and BOM cost by $1.80+. |
Use Scenario: Battery-powered wearable ECG/SpO₂ monitor with real-time signal processing and USB data upload. IC Role / Device Role / Timing Role: Signal acquisition hub digitizing analog biosignals via 12-bit ADC, performing baseline correction in firmware, and streaming data over USB FS. Use Value: 200 nA hibernate mode extends coin-cell life to >3 years; integrated USB eliminates external transceiver, meeting Class II medical EMC requirements. |
| Smart Home Environmental Sensor | Energy-Harvesting Wireless Node |
|
Use Scenario: CO₂/VOC/humidity sensor node transmitting data via UART-to-LoRa module with local calibration storage. IC Role / Device Role / Timing Role: Sensor fusion processor reading I²C gas/humidity sensors, storing factory calibration in EEPROM, and managing low-duty-cycle wake-up via RTC alarm. Use Value: On-chip EEPROM retains calibration across power cycles; programmable I/O thresholds allow direct connection to unbuffered analog gas sensors. |
Use Scenario: Solar-powered soil moisture sensor transmitting hourly readings via BLE (using external module) with ultra-low quiescent current. IC Role / Device Role / Timing Role: Power-aware controller harvesting micro-watts from PV cell, regulating VBOOST for stable 3.3 V rail, and waking only during ADC sampling and radio transmit windows. Use Value: Integrated boost converter accepts 0.5 V input - enables operation under low-light conditions where competing MCUs require ≥1.8 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C3247LTI-164T | Same architecture, 68-QFN package, 48 GPIOs, adds 2 extra UDBs and 1 additional TCPWM block. | Better suited for designs requiring >4 PWM channels or expanded digital logic density (e.g., motor control with encoder + commutation). | Select when pin count and peripheral count exceed CY8C3246LTI-162T's 48-QFN limits; not drop-in due to package and routing differences. |
| CY8C4014LQI-422 | PSoC 4 (ARM Cortex-M0), 48-QFN, 32 KB flash, no USB, lower analog precision (12-bit SAR ADC, no Delta-Sigma). | Targeted at cost-sensitive, non-USB, lower-precision control (e.g., basic lighting controllers, simple timers). | Choose for ARM toolchain preference or when USB/CapSense/boost converter are unnecessary - sacrifices analog fidelity and power efficiency. |
Compared with CY8C3246LTI-162T, CY8C3247LTI-164T offers higher I/O count and logic capacity but requires PCB redesign; CY8C4014LQI-422 trades Delta-Sigma ADC accuracy, USB integration, and ultra-low-power modes for lower unit cost and ARM ecosystem alignment.
Availability
CY8C3246LTI-162T is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical sensor nodes, smart home environmental monitors, and energy-harvesting wireless nodes requiring stable component supply across long-lifecycle programs.
Supply support for CY8C3246LTI-162T 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 the PSoC® family. Cypress pioneered programmable analog-digital SoCs for embedded control before the acquisition.
CY8C3246LTI-162T belongs to the PSoC® 3 platform, designed specifically for ultra-low-power, mixed-signal embedded applications requiring high analog precision, flexible digital logic, and integrated USB connectivity in compact form factors.
FAQ
Does CY8C3246LTI-162T support USB device enumeration without an external crystal?
Yes. The device uses its internal 3–24 MHz IMO (±2% accuracy) with integrated USB 2.0 FS PHY, certified per TID#40770053. No external crystal is required for USB HID or CDC class operation, simplifying layout and reducing BOM count.
What is the maximum number of CapSense® electrodes supported on this part?
CY8C3246LTI-162T supports up to 62 CapSense® electrodes, enabled by dedicated hardware scanning engine and analog routing to all 29 GPIOs. Electrode count is limited by mutual-capacitance scan time and SNR requirements, not pin count.
Can the internal boost converter power external circuitry?
Yes. The VBOOST output pin delivers regulated 5 V (±5%) at up to 100 mA, and can supply external components such as LCD bias circuits, op-amp rails, or RF modules - provided total load current remains within boost converter specifications.
Is SWD debugging supported in all power modes?
SWD is fully functional in Active, Sleep, and Deep Sleep modes. However, it is disabled in Hibernate mode (200 nA) where only the RTC and retained RAM remain active; wake-up via GPIO or RTC alarm is required before re-enabling debug access.
CY8C3246LTI-162T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-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:
- 25
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 8K 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:
CY8C3246LTI-162T FAQ
1.How can I place an order for CY8C3246LTI-162T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3246LTI-162T 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 CY8C3246LTI-162T reliable?
The price and inventory of CY8C3246LTI-162T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3246LTI-162T is usually 5 days.
3.What payment methods are accepted for CY8C3246LTI-162T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3246LTI-162T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3246LTI-162T?
CY8C3246LTI-162T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3246LTI-162T 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 CY8C3246LTI-162T?
For technical support, including CY8C3246LTI-162T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3246LTI-162T requirements.
6.How does Aetrix verify that CY8C3246LTI-162T is sourced from the original manufacturer or authorized distributors?
All CY8C3246LTI-162T 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 CY8C3246LTI-162T meets industry standards.
7.What is the process for return or replacement of CY8C3246LTI-162T?
All CY8C3246LTI-162T units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3246LTI-162T, 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 CY8C3246LTI-162T part is unused and in its original packaging.
Return procedure for CY8C3246LTI-162T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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