Infineon Technologies CYSHM35926P-L068LTI
- Part No.:
- CYSHM35926P-L068LTI
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 68-VFQFN Exposed Pad
- Datasheet:
-
CYSHM35926P-L068LTI.pdf
- Description:
- PSOC4
- Quantity:
- Payment:

- Shipping:

Inventory:4,605
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Product details
Overview
CYSHM35926P-L068LTI from Cypress Semiconductor is a programmable embedded system controller featuring a 48 MHz ARM Cortex-M0 CPU, 256 kB flash, 32 kB SRAM, and integrated programmable analog/digital blocks-including four opamps, two low-power comparators, eight UDBs, four IDACs, and dual CAN interfaces-targeting industrial control and automotive networking applications with field-reconfigurable timing and signal conditioning.
For engineers reviewing the CYSHM35926P-L068LTI datasheet, CYSHM35926P-L068LTI pinout, CYSHM35926P-L068LTI application, or CYSHM35926P-L068LTI equivalent, key selection considerations include Deep Sleep current (20 nA), USB Full-Speed + Battery Charger Detect, dual CAN block support, 12-bit SAR ADC (1 Msps), and 68-pin QFN package with Ultra Low Alpha mold compound for high-reliability environments.
Technical Context
The device implements a multi-layer AHB-Lite interconnect architecture with dedicated analog clock leading digital clocks to minimize noise coupling during ADC sampling. Its power management supports five modes-Active, Sleep, Deep Sleep, Hibernate, and Stop-with Wakeup Interrupt Controller (WIC) enabling sub-μA wake-from-Deep-Sleep via GPIO or peripheral events.
The programmable analog subsystem includes four opamps configurable as buffers, comparators, or transimpedance amplifiers, each connectable to any GPIO; two independent low-power comparators operate in Deep Sleep mode with hysteresis control, while the SAR ADC uses trimmable ±1% internal reference and supports external VREF input via dedicated GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0 @ 48 MHz with single-cycle 32-bit multiply and NVIC supporting 32 interrupts |
| Memory | 256 kB flash (with Read Accelerator delivering 85% SRAM-like access speed) and 32 kB SRAM retained in Hibernate |
| Analog Peripherals | 12-bit SAR ADC (1 Msps, 18 MHz max clock), 4 opamps (Deep Sleep capable), 2 low-power comparators, 4 IDACs |
| Digital Peripherals | 8 universal digital blocks (UDBs), 4 reconfigurable SCBs (I²C/SPI/UART), USB FS (12 Mbps + CHG-DET), 2 CAN 2.0B controllers |
| Power Modes | Stop Mode at 20 nA with GPIO wakeup; Deep Sleep & Hibernate with configurable retention and wake sources |
| Package | 68-pin QFN (10 mm × 10 mm, 0.5 mm pitch) using Ultra Low Alpha (ULA) mold compound for reduced soft error rate |
Pinout & Package
68-pin QFN package with exposed thermal pad; pin-compatible with SHM35920-L family and designed for high-density PCB layouts requiring ESD robustness and low-alpha reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply input | Accepts 1.71–5.5 V; powers CPU, flash, SRAM, and most peripherals |
| VSS | Ground reference | Primary digital ground plane connection; multiple pins for low-impedance return path |
| XRES | External reset input | Asynchronous active-low reset pin with internal pull-up; overrides all other reset sources |
| SWDIO / SWCLK | Serial Wire Debug interface | 2-wire JTAG-compatible debug port supporting full on-chip programming and real-time trace |
| P0[0]–P0[7], P1[0]–P1[7], etc. | Programmable GPIO banks | Up to 57 pins support LCD drive, analog input/output, digital logic, or capacitive sensing with configurable drive strength/slew rate |
Key Features
| Feature | Design Value |
|---|---|
| Field-reconfigurable analog/digital blocks | UDBs and CTBm blocks can be reprogrammed in-system without hardware change, enabling late-stage tuning of sensor interfaces or motor control logic |
| Secure debug disable | SWD interface can be permanently disabled via firmware; re-enabling requires full chip erase and reprogramming-prevents unauthorized firmware extraction |
| Ultra-low-power Deep Sleep | 20 nA Stop Mode with GPIO-triggered wake; comparators and RTC remain active, enabling battery-powered remote monitoring |
| Dual CAN 2.0B controllers | Independent CAN blocks support simultaneous CAN FD-ready networks for vehicle body control and powertrain diagnostics |
| Segment LCD driver | Up to 64-segment/common outputs driven directly from GPIOs in Deep Sleep mode with 4-bit per-pin memory retention |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Closed-loop BLDC motor control with real-time current sensing and PWM generation in harsh EMI environments. IC Role / Device Role / Timing Role: MCU + programmable analog front-end + dual TCPWM + comparator-based kill signal generator for safety-critical shutdown. Use Value: On-die opamp buffering and comparator triggering reduce external component count; Deep Sleep enables low-power standby between motion cycles. | Use Scenario: Door module managing window lift, mirror fold, and interior lighting with CAN communication to central gateway. IC Role / Device Role / Timing Role: System controller with dual CAN interfaces (one for LIN/CAN gateway, one for local actuator bus), integrated opamps for hall-effect sensor conditioning. Use Value: Single-chip integration eliminates discrete CAN transceivers and analog signal conditioners; ULA packaging ensures long-term reliability in temperature-cycled cabin environments. |
| Smart Energy Metering | Medical Sensor Hub |
Use Scenario: DIN-rail mounted electricity meter performing isolation-free current/voltage sampling, tariff calculation, and PLC or RF communication. IC Role / Device Role / Timing Role: High-precision analog acquisition node with 12-bit SAR ADC, internal voltage reference trimming, and secure flash for firmware updates. Use Value: ±1% reference accuracy and external VREF option enable Class 0.5 meter compliance; flash protection prevents tampering with billing algorithms. | Use Scenario: Wearable patch collecting ECG, skin temperature, and motion data, transmitting via BLE or USB to clinical gateway. IC Role / Device Role / Timing Role: Low-power sensor aggregator with programmable opamp gain stages, IDAC-driven electrode biasing, and USB FS for direct PC connectivity. Use Value: 20 nA Stop Mode extends battery life beyond 7 days; on-chip opamp comparator enables R-peak detection without external analog IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon XMC4504-F100K1024 AC | ARM Cortex-M4F core @ 144 MHz, no integrated programmable analog, 12-bit ADC only (no IDAC/comparator flexibility) | Lacks on-die opamp reconfiguration and Deep Sleep comparator operation; requires external signal conditioning for sensor front-ends | Preferred when floating-point math or higher deterministic interrupt latency is required, but adds BOM cost for analog components |
| NXP LPC845M301JHI33 | Cortex-M0+ @ 30 MHz, 64 kB flash, no CAN, no programmable analog blocks, only basic comparators | Cannot support dual-CAN automotive networking or field-tunable analog paths; limited to simple I/O and serial bridging | Suitable for cost-sensitive consumer IoT nodes where programmability and analog integration are not required |
Compared with XMC4504 and LPC845, CYSHM35926P-L068LTI uniquely combines ARM Cortex-M0 performance with field-reconfigurable analog/digital fabric, dual CAN, and <20 nA ultra-low-power modes-making it optimal for space-constrained, high-integration industrial and automotive edge nodes requiring post-deployment tuning.
Availability
CYSHM35926P-L068LTI is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, smart energy metering, and medical sensor hub applications requiring stable component supply across extended product lifecycles.
Supply support for CYSHM35926P-L068LTI 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 programmable mixed-signal ICs for embedded systems, emphasizing configurability, security, and low-power operation across industrial, automotive, and consumer markets.
CYSHM35926P-L068LTI belongs to the SHM 35-Series System Hardware Manager family-engineered to replace multi-chip analog + MCU solutions with a single, field-reprogrammable platform for sensor fusion, motor control, and secure connectivity.
FAQ
What debug interfaces does CYSHM35926P-L068LTI support?
CYSHM35926P-L068LTI supports Serial Wire Debug (SWD) via SWDIO and SWCLK pins, compliant with ARM CoreSight standards. It includes four address breakpoint comparators and two data watchpoint comparators. Debug is enabled by default and can be permanently disabled in firmware; re-enabling requires full chip erase and reprogramming.
Does CYSHM35926P-L068LTI support external crystal oscillators?
Yes-CYSHM35926P-L068LTI supports both a high-frequency crystal oscillator (4–33 MHz) for main system clock and a 32-kHz watch crystal oscillator (WCO) for real-time clock and Deep Sleep timing. The PLL can generate a precise 48-MHz clock from the HF crystal, and the IMO internal oscillator is factory-trimmed to ±2% accuracy.
Can the opamps in CYSHM35926P-L068LTI drive LCD segments directly?
No-the opamps are not configured for direct LCD segment driving. LCD functionality is implemented through dedicated GPIO configuration in Segment/Common mode, supported by on-chip LCD controller logic. Opamps serve analog signal conditioning roles (e.g., sensor buffering, comparator input), while LCD drive uses separate digital routing and memory-mapped segment control.
Is CYSHM35926P-L068LTI qualified for automotive AEC-Q100?
No-CYSHM35926P-L068LTI is not AEC-Q100 qualified. It uses Ultra Low Alpha (ULA) mold compound for reduced soft error rate and operates across –40°C to +85°C, but lacks formal automotive qualification. For AEC-Q100 applications, designers should consider Infineon's automotive-qualified PSoC™ variants or companion automotive-grade CAN transceivers.
CYSHM35926P-L068LTI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 68-VFQFN Exposed Pad
- Series:
- SHM 35000 L-Class
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SmartCard, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 57
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 5.5V
- Data Converters:
- A/D 8x12b SAR; D/A 2x7b, 2x8b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CYSHM35926P-L068LTI FAQ
1.How can I place an order for CYSHM35926P-L068LTI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYSHM35926P-L068LTI 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 CYSHM35926P-L068LTI reliable?
The price and inventory of CYSHM35926P-L068LTI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYSHM35926P-L068LTI is usually 5 days.
3.What payment methods are accepted for CYSHM35926P-L068LTI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYSHM35926P-L068LTI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYSHM35926P-L068LTI?
CYSHM35926P-L068LTI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYSHM35926P-L068LTI 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 CYSHM35926P-L068LTI?
For technical support, including CYSHM35926P-L068LTI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYSHM35926P-L068LTI requirements.
6.How does Aetrix verify that CYSHM35926P-L068LTI is sourced from the original manufacturer or authorized distributors?
All CYSHM35926P-L068LTI 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 CYSHM35926P-L068LTI meets industry standards.
7.What is the process for return or replacement of CYSHM35926P-L068LTI?
All CYSHM35926P-L068LTI units undergo pre-shipment inspection (PSI). If there is an issue with CYSHM35926P-L068LTI, 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 CYSHM35926P-L068LTI part is unused and in its original packaging.
Return procedure for CYSHM35926P-L068LTI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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