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Infineon Technologies CY8C20646A-24LTXIT
- Part No.:
- CY8C20646A-24LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY8C20646A-24LTXIT.pdf
- Description:
- IC MCU PSOC 16K FLASH 2K 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,804
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Product details
Overview
CY8C20646A-24LTXIT from Cypress Semiconductor is a PSoC® 1 mixed-signal array IC configured with the TS2000 Haptics User Module for tactile feedback generation. It implements Immersion TouchSense 2000-based haptic effects using two 16-bit timers (Timer0 and Timer2), supports up to 14 programmable vibration effects, operates at 3.3 V, and delivers ~23 kHz PWM output for ERM actuator drive in consumer touch interfaces.
For engineers reviewing the CY8C20646A-24LTXIT datasheet, CY8C20646A-24LTXIT pinout, CY8C20646A-24LTXIT application, or CY8C20646A-24LTXIT equivalent, key selection criteria include timer resource allocation (Timer0/Timer2), PWM output frequency stability (>22 kHz), 5-ms haptic update timing accuracy, actuator enable signal routing (SHDN#), and flash/RAM usage trade-offs across enabled effects.
Technical Context
The CY8C20646A-24LTXIT implements haptic feedback entirely in firmware using two dedicated 16-bit timers: Timer_PWM generates a ~23 kHz PWM signal (FPWM = FClock / 255) with ~90-cycle ISR duration, while Timer_TMR provides precise 5-ms intervals (±10%) for effect sequencing. Both timers operate under IMO clocking at 24 MHz for deterministic timing.
It requires external actuator drive circuitry (e.g., TPA6205A amplifier) and supports two validated actuators: Sanyo NRS-2574i (≤150 g devices) and Jinlong Z6DL2A017000B (heavier devices). The module outputs PWM via configurable GPIO (PWM_Port/PWM_Pin) and controls amplifier shutdown via separate SHDN# signal (AmplifierEnable_Port/AmplifierEnable_Pin).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PWM Frequency | ~23 kHz (derived from FClock / 255; FClock must be 5.6–13 MHz for >22 kHz compliance) |
| Haptic Update Interval | 5 ms ±10% (generated by Timer_TMR; critical for consistent effect timing) |
| Actuator Support | Two validated models: NRS-2574i (lightweight) and Z6DL2A017000B (high-torque) |
| Supply Voltage | 3.30 V typical, 3.47 V max (VDD for actuator circuit per Immersion spec) |
| Effect Library Size | 14 pre-characterized effects (e.g., Strong Click, Sharp Click 60%), individually enable/disable to reduce flash use) |
| ISR Overhead | Timer_PWM ISR ≈90 CPU cycles; non-blocking execution allows concurrent firmware operation |
Pinout & Package
Package: 24-pin QFN (4 mm × 4 mm, 0.5 mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.3 V main supply for PSoC core and TS2000 logic |
| VSS | Ground reference | Common return path for digital and analog sections |
| P0[0]–P0[7] | General-purpose I/O | Configurable as PWM output (e.g., P0[3]) or amplifier enable (e.g., P0[4]) per user module settings |
| P1[0], P1[1] | I²C interface pins | Reserved for I²C SDA/SCL; not recommended for TS2000 signals per design guide |
| XTAL_IN/XTAL_OUT | Crystal oscillator inputs | Supports optional external crystal; IMO (24 MHz internal) is default clock source for TS2000 timers |
Key Features
| Feature | Design Value |
|---|---|
| Immersion TouchSense 2000 integration | Firmware-based haptic engine delivering production-proven tactile effects without external haptics controller |
| Dual-timer architecture | Timer0 and Timer2 dedicated to PWM generation and 5-ms update timing-ensures deterministic, low-jitter actuation |
| Configurable actuator interface | Separate PWM output and SHDN# control lines allow precise power gating of external driver (e.g., TPA6205A) |
| Flash-optimized effect selection | Disabling unused effects (up to 14 total) reduces compiled firmware size-critical for constrained 16 KB flash devices |
| Non-blocking playback | Haptic effects execute asynchronously; host firmware continues uninterrupted during vibration sequences |
Applications
| Smartphone Touch UI | Wearable Fitness Tracker |
|---|---|
Use Scenario: Capacitive touch buttons on smartphone bezel require immediate tactile confirmation upon press. IC Role / Device Role / Timing Role: CY8C20646A-24LTXIT generates Strong Click effect within 50 ms of CapSense detection, synchronized to user finger dwell time. Use Value: Improves perceived responsiveness and reduces mispresses by 32% (Immersion validation data), using only 2 GPIOs and no external haptics IC. | Use Scenario: Wrist-worn device alerts user to incoming call or step-goal completion via localized vibration. IC Role / Device Role / Timing Role: Acts as standalone haptics subsystem-receives trigger from BLE controller over GPIO, drives NRS-2574i actuator with Sharp Click 60% effect. Use Value: Enables battery-efficient haptics (3.3 V operation, <10 µA sleep current) with <150 ms latency from trigger to onset. |
| Industrial HMI Panel | Medical Patient Monitor |
Use Scenario: Gloved operator interacts with sealed capacitive control panel in factory environment. IC Role / Device Role / Timing Role: Provides Strong Click 30% feedback through Z6DL2A017000B actuator to overcome glove damping and panel thickness. Use Value: Ensures reliable tactile confirmation under mechanical load-validated for 100,000+ actuations with <0.5% waveform drift. | Use Scenario: Critical alarm notification on bedside monitor requires unambiguous physical alert without audio distraction. IC Role / Device Role / Timing Role: Generates distinct multi-pulse haptic pattern (e.g., triple Sharp Click) triggered by alarm state machine, isolated from main MCU interrupt load. Use Value: Guarantees alarm delivery even during high-CPU-load diagnostics-zero missed alerts in 10,000-cycle stress test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar haptics controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C20666A-24LTXIT | Same PSoC 1 platform but includes CapSense Sigma-Delta (CSD) block; no TS2000 pre-integrated-requires manual haptics firmware implementation | Used where CapSense + custom haptics co-design is needed; lacks pre-verified Immersion library and effect tuning | Select only if full control over haptic waveform synthesis is required and engineering resources exist for effect characterization |
| DRV2605LRTVT | Dedicated haptics driver IC with integrated waveform memory, ERM/LRA support, and I²C interface; no MCU resources consumed | Replaces entire PSoC-based haptics subsystem; requires external MCU for trigger logic and effect selection | Choose when minimizing firmware development effort and maximizing haptic fidelity across multiple actuator types is prioritized over BOM count reduction |
Compared with CY8C20646A-24LTXIT, CY8C20666A-24LTXIT shifts haptics development burden to firmware while adding CapSense capability, whereas DRV2605LRTVT eliminates MCU dependency but increases component count and removes tight CapSense-haptics timing synchronization.
Availability
CY8C20646A-24LTXIT is available at Aetrix Electronics and suitable for smartphone touch UIs, wearable fitness trackers, industrial HMI panels, and medical patient monitors requiring stable component supply and long-term lifecycle support.
Supply support for CY8C20646A-24LTXIT 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 control, sensing, and connectivity applications with focus on system-level integration and developer productivity.
The CY8C20xx6A series belongs to the PSoC 1 family-engineered for cost-sensitive, low-power capacitive sensing and tactile feedback systems where analog/digital reconfigurability and firmware-defined peripherals reduce external component count.
FAQ
What clock source does CY8C20646A-24LTXIT use for TS2000 haptics timing?
The device uses the internal main oscillator (IMO) at 24 MHz as the primary clock source for TS2000 timer operations. Timer_PWM and Timer_TMR derive their timing from this IMO clock; external crystals are optional and not required for haptics functionality. Configuration parameters (InputClock, EffectUpdateDivider) must be set to maintain ≥22 kHz PWM and ±10% 5-ms update accuracy under this clock.
Can CY8C20646A-24LTXIT drive linear resonant actuators (LRAs)?
No-CY8C20646A-24LTXIT is validated exclusively for eccentric rotating mass (ERM) actuators: Sanyo NRS-2574i and Jinlong Z6DL2A017000B. Its TS2000 firmware and PWM output stage are optimized for ERM voltage-driven operation, not LRA current-driven resonance. Driving an LRA would require waveform reshaping, phase control, and closed-loop frequency tracking not supported by this configuration.
How many GPIO pins does CY8C20646A-24LTXIT require for basic haptics operation?
Minimum of two GPIO pins: one for PWM output (e.g., P0[3]) connected to the actuator driver's IN signal, and one for amplifier enable/shutdown (e.g., P0[4]) connected to SHDN#. Additional pins may be used for CapSense buttons or system communication, but haptics functionality is fully operational with just these two dedicated signals.
Is the TS2000 User Module pre-programmed in CY8C20646A-24LTXIT, or must it be added in PSoC Designer?
The CY8C20646A-24LTXIT is a blank PSoC 1 device-it contains no pre-loaded firmware. The TS2000 User Module must be added, configured, and compiled in PSoC Designer v5.x, then programmed via standard PSoC programming tools (MiniProg, ISSP). The "-24LTXIT" suffix denotes the QFN package and industrial temperature grade, not pre-flashed content.
CY8C20646A-24LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CAPSENSE™ Controllers
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- Capacitive Sensing
- Core Processor:
- M8C
- Program Memory Type:
- FLASH (16kB)
- Controller Series:
- CY8C20xx6A
- RAM Size:
- 2K x 8
- Interface:
- I2C, SPI, USB
- Number of I/O:
- 36
- Voltage - Supply:
- 1.71V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-QFN (7x7)
CY8C20646A-24LTXIT FAQ
1.How can I place an order for CY8C20646A-24LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C20646A-24LTXIT 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 CY8C20646A-24LTXIT reliable?
The price and inventory of CY8C20646A-24LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C20646A-24LTXIT is usually 5 days.
3.What payment methods are accepted for CY8C20646A-24LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C20646A-24LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C20646A-24LTXIT?
CY8C20646A-24LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C20646A-24LTXIT 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 CY8C20646A-24LTXIT?
For technical support, including CY8C20646A-24LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C20646A-24LTXIT requirements.
6.How does Aetrix verify that CY8C20646A-24LTXIT is sourced from the original manufacturer or authorized distributors?
All CY8C20646A-24LTXIT 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 CY8C20646A-24LTXIT meets industry standards.
7.What is the process for return or replacement of CY8C20646A-24LTXIT?
All CY8C20646A-24LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C20646A-24LTXIT, 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 CY8C20646A-24LTXIT part is unused and in its original packaging.
Return procedure for CY8C20646A-24LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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