Infineon Technologies CY8C20536A-24PVXIT

Overview

CY8C20536A-24PVXIT from Cypress Semiconductor is a PSoC® 1 mixed-signal array IC configured with the TS2000 Haptics User Module for tactile feedback generation. It implements firmware-based 23 kHz PWM and 5-ms haptic update timing using two dedicated 16-bit timers (Timer0 and Timer2), operates at up to 3.3 V, and supports up to 14 Immersion TouchSense 2000 haptic effects for CapSense® button confirmation in portable consumer interfaces.

For engineers reviewing the CY8C20536A-24PVXIT datasheet, CY8C20536A-24PVXIT pinout, CY8C20536A-24PVXIT application, or CY8C20536A-24PVXIT equivalent, key selection considerations include timer resource allocation, PWM output frequency stability (>22 kHz), actuator drive interface (SHDN# and –IN signal routing), and flash/RAM usage trade-offs across enabled haptic effects.

Technical Context

The CY8C20536A-24PVXIT implements haptic feedback entirely in firmware using two 16-bit timers: Timer_PWM generates ~23 kHz PWM output (90-cycle ISR duration), while Timer_TMR triggers haptic effect updates every 5 ms ±10%. No hardware digital blocks are consumed-unlike CY8C22x45H variants-making it suitable for resource-constrained PSoC 1 designs requiring tactile response without dedicated PWM blocks.

It requires IMO clock = 24 MHz for optimal timing accuracy and minimal ISR interference; FClock must be 5.6–13 MHz to satisfy FPWM = FClock/255 > 22 kHz and EffectUpdateDivider = (FClock/(200 Hz × 255)) − 1 ∈ [109, 255]. The module remains CPU-nonblocking: code execution continues during effect playback, and zero CPU load occurs when idle.

Key Specifications

Pinout & Package

Package: 24-pin SSOP (PVXIT suffix denotes 24-pin, 0.209" body width, lead-free, RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY8C20536A-24PVXIT, CY8C22345H reduces CPU load via hardware PWM but increases digital resource usage, while DRV2605L offers broader actuator support and offloads waveform generation but breaks the integrated CapSense®+haptics firmware flow.

Availability

CY8C20536A-24PVXIT is available at Aetrix Electronics and suitable for smartphone touch UIs, wearable fitness trackers, industrial handheld scanners, and medical patient monitor touch panels requiring stable component supply and long-term design-in support.

Supply support for CY8C20536A-24PVXIT 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 low-power, high-integration solutions.

The CY8C20xx6A series belongs to the PSoC® 1 family, engineered specifically for cost-sensitive, ultra-low-power capacitive sensing and integrated haptics in portable consumer and industrial human-interface devices.

FAQ

What is the minimum required IMO clock frequency for stable TS2000 operation on CY8C20536A-24PVXIT?

The IMO clock must be set to 24 MHz for guaranteed timing compliance. At this frequency, FClock = 6 MHz satisfies both FPWM = 6 MHz/255 ≈ 23.5 kHz (>22 kHz) and EffectUpdateDivider = (6 MHz/(200 Hz × 255)) − 1 = 117, which falls within the valid [109, 255] range. Deviations risk missed haptic updates or audible PWM artifacts.

Can CY8C20536A-24PVXIT drive linear resonant actuators (LRAs), or is it limited to ERMs?

CY8C20536A-24PVXIT is validated exclusively for Eccentric Rotating Motor (ERM) actuators-specifically Sanyo NRS-2574i and Jinlong Z6DL2A017000B-as defined in the TS2000 Haptics documentation. Its firmware-generated 23 kHz PWM and drive circuit assumptions (TPA6205A amplifier) do not support LRA voltage/current profiles or resonance tuning requirements.

How does disabling unused haptic effects impact memory usage on CY8C20536A-24PVXIT?

Disabling an effect reduces flash usage by approximately 300–500 bytes per effect, depending on complexity. With all 14 effects enabled, total flash consumption ranges from 15,922 to 17,500 bytes; disabling 7 effects typically reduces usage to 14,200–15,300 bytes. RAM usage remains constant at 38–175 bytes regardless of effect count, as only active effect parameters consume dynamic memory.

Is the SHDN# signal active-high or active-low, and what is its voltage tolerance?

The SHDN# signal is active-low and referenced to VDD (3.3 V). It accepts standard CMOS logic levels: ≤0.8 V for logic low (amplifier disabled), ≥2.0 V for logic high (amplifier enabled). The pin is not 5-V tolerant; exceeding VDD + 0.3 V risks latch-up or permanent damage per the CY8C20xx6A datasheet Absolute Maximum Ratings table.