Infineon Technologies CY8C20496A-24LQXIT

Overview

CY8C20496A-24LQXIT from Cypress Semiconductor is a PSoC® 1 mixed-signal array IC configured with the TS2000 Haptics User Module, delivering Immersion TouchSense 2000-based tactile feedback via PWM-driven ERM actuators. It operates at up to 3.3 V, uses two 16-bit Timer resources (Timer0 and Timer2), supports 14 programmable haptic effects, and targets CapSense® button interfaces requiring real-time tactile confirmation.

For engineers reviewing the CY8C20496A-24LQXIT datasheet, CY8C20496A-24LQXIT pinout, CY8C20496A-24LQXIT application, or CY8C20496A-24LQXIT equivalent, key selection criteria include 23 kHz PWM output frequency, 5-ms haptic update timing accuracy, firmware-integrated effect playback API, actuator drive signal routing (PWM and SHDN#), and resource allocation for Timer-based waveform generation in CY8C20xx6H-series devices.

Technical Context

The CY8C20496A-24LQXIT implements haptic feedback using two dedicated 16-bit timers: Timer_PWM generates ~23 kHz PWM output (FClock/255), while Timer_TMR provides precise 5-ms intervals for effect sequencing. Both ISRs execute in firmware without blocking main code flow.

It requires IMO clock = 24 MHz for optimal ISR timing integrity; PWM input clock must be 5.6–13 MHz, and EffectUpdateDivider must be set between 109–255 to maintain ≤10% error on 200 Hz update rate. The device does not support hardware-accelerated PWM or dual-digital-block configurations - only the "2-Timer" mode is available.

Key Specifications

Pinout & Package

LQFP-48 (7 mm × 7 mm, 0.5 mm pitch) package with 44 I/O pins. Pin assignment is fully configurable via PSoC Designer; critical haptics-related terminals require explicit user routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar haptics controller applications.

Compared with CY8C20346H and CY8C22345H, the CY8C20496A-24LQXIT uniquely balances deterministic timing (via dual-timer ISR), minimal resource footprint (no digital blocks), and compatibility with legacy CY8C20xx6A/H toolchains - making it optimal for cost-sensitive, mid-complexity haptics implementations where CPU headroom is constrained but timing fidelity is essential.

Availability

CY8C20496A-24LQXIT is available at Aetrix Electronics and suitable for smartphone touch UI feedback, industrial HMI button confirmation, and wearable device alert feedback requiring stable component supply and long-term PSoC 1 platform support.

Supply support for CY8C20496A-24LQXIT 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, with emphasis on integration, low-power operation, and system-level flexibility.

The CY8C20xx6A/H product line delivers CapSense®-centric PSoC 1 solutions optimized for capacitive touch interfaces with integrated haptics, sensor conditioning, and USB/I²C connectivity - targeting human-interface applications where tactile feedback enhances usability and reliability.

FAQ

What clock source is required for reliable TS2000 operation on CY8C20496A-24LQXIT?

The device requires the Internal Main Oscillator (IMO) set to 24 MHz. This ensures Timer_PWM ISR duration remains within 90 clock cycles and prevents missed interrupts from other ISRs. Using VC1 dividers or external clocks outside 5.6–13 MHz range causes incorrect PWM frequency or 5-ms timing drift, degrading haptic effect fidelity.

Can CY8C20496A-24LQXIT drive piezoelectric actuators?

No - the TS2000 User Module is characterized exclusively for Eccentric Rotating Motor (ERM) actuators like the Sanyo NRS-2574i and Jinlong Z6DL2A017000B. Its 23 kHz PWM carrier and drive strength are optimized for inductive ERM loads; piezo drivers require higher voltage swing, faster slew rates, and different impedance matching not supported by this implementation.

How does flash memory usage vary with enabled haptic effects?

Each enabled effect increases flash usage by approximately 350–420 bytes. With all 14 effects enabled, total TS2000 flash footprint is 15,922 bytes; disabling 7 effects reduces it to ~14,200 bytes. The value is worst-case and compiler-dependent - actual usage varies with optimization level and linker settings in PSoC Designer v5.4.

Is the SHDN# signal active-high or active-low?

The AmplifierEnable signal is active-low (SHDN#). When driven high, the actuator driver (e.g., TPA6205A) enters shutdown mode and disables output. The TS2000 User Module asserts low during effect playback and releases high afterward - ensuring zero power draw when idle and preventing unintended actuator activation.