Infineon Technologies CY8C20396A-24LQXIT

Overview

CY8C20396A-24LQXIT 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 haptic effects using two dedicated 16-bit timers (Timer0 and Timer2), supports up to 14 programmable vibration effects, operates at up to 3.3 V, and targets CapSense®-based touch interfaces requiring user-confirmed input feedback in handheld consumer electronics.

For engineers reviewing the CY8C20396A-24LQXIT datasheet, CY8C20396A-24LQXIT pinout, CY8C20396A-24LQXIT application, or CY8C20396A-24LQXIT equivalent, key selection criteria include PWM output frequency (~23 kHz), 5-ms haptic update timing accuracy, actuator drive signal routing (PWM and SHDN# pins), flash memory usage (15,922 bytes), and compatibility with Sanyo NRS-2574i or Jinlong Z6DL2A017000B actuators.

Technical Context

The CY8C20396A-24LQXIT implements haptic feedback entirely in firmware using two 16-bit timer resources: Timer_PWM generates a ~23 kHz PWM signal (FPWM = FClock / 255) with ~90-cycle ISR duration, while Timer_TMR provides precise 5-ms intervals for effect sequencing. Both timers operate under IMO clock control (recommended 24 MHz).

It requires external actuator drive circuitry (e.g., TPA6205A amplifier) and supports two actuator models-Sanyo NRS-2574i for devices ≤150 g and Jinlong Z6DL2A017000B for heavier units-with dedicated PWM and amplifier enable (SHDN#) signal routing via configurable GPIO pins.

Key Specifications

Pinout & Package

Package: 24-pin QFN (4 × 4 mm, 0.5 mm pitch), RoHS-compliant, moisture-sensitive level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C20396A-24LQXIT, CY8C20366A-24LQXIT shifts haptics development burden to firmware, while MAX11802EUB+T removes MCU dependency but sacrifices effect flexibility and CapSense co-processing capability.

Availability

CY8C20396A-24LQXIT is available at Aetrix Electronics and suitable for smartphone touch interfaces, wearable fitness trackers, industrial handheld scanners, and medical patient monitor UIs requiring stable component supply and long-term lifecycle support.

Supply support for CY8C20396A-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, sensing, and connectivity applications with emphasis on low-power, high-integration solutions.

The CY8C20xx6A series delivers CapSense®-enabled PSoC 1 devices optimized for cost-sensitive human-interface applications requiring integrated analog front-ends, digital logic, and configurable haptics feedback.

FAQ

What is the minimum required IMO clock speed for stable TS2000 operation on CY8C20396A-24LQXIT?

The device requires an IMO clock of 24 MHz for guaranteed TS2000 timing compliance. At this speed, Timer_PWM achieves ~23 kHz PWM output and Timer_TMR delivers 5-ms intervals within ±10% error. Lower IMO frequencies risk violating the 22 kHz PWM lower bound or exceeding the 5-ms update tolerance, causing distorted haptic effects or missed updates.

Can CY8C20396A-24LQXIT drive piezoelectric actuators?

No-this device is validated exclusively for Eccentric Rotating Motor (ERM) actuators: Sanyo NRS-2574i and Jinlong Z6DL2A017000B. Its TS2000 firmware and drive signal characteristics (23 kHz PWM, 3.3-V logic levels) are tuned for ERM impedance and mechanical response. Piezo drivers require higher voltage, different frequency ranges, and charge-pump circuitry not supported by this configuration.

How does disabling unused haptic effects impact memory usage?

Disabling effects directly reduces flash memory consumption: each enabled effect adds ~1.1–1.8 kB depending on complexity. With all 14 effects enabled, worst-case flash usage is 15,922 bytes; disabling 8 effects typically reduces footprint to ~7,200 bytes. RAM usage also decreases proportionally, as effect-specific waveform buffers and state variables are omitted during compilation.

Is external crystal required for haptic timing accuracy?

No-CY8C20396A-24LQXIT uses the internal IMO (Internal Main Oscillator) at 24 MHz for all TS2000 timing functions. The IMO's ±2% accuracy meets the ±10% tolerance requirement for the 5-ms haptic update interval. An external crystal is unnecessary unless the broader system design requires higher-precision timing for non-haptics functions like USB or UART.