Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Data Acquisition > Touch Screen Controllers

Semtech Corporation SX8652IWLTRT

Name: SX8652IWLTRT
Brand: Semtech Corporation
SKU: SX8652IWLTRT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SX8652IWLTRT

Manufacturer:: Semtech Corporation

Category:: Touch Screen Controllers

Package:: 14-WFDFN Exposed Pad

Datasheet:: SX8652IWLTRT.pdf

Description:: IC SCREEN CNTRL 12BIT 14DFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,282

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SX8652IWLTRT from Semtech is a low-power 4-wire/5-wire resistive touchscreen controller with SPI interface, 12-bit SAR ADC, ±15kV HBM ESD protection on X+/X-/Y+/Y- pins, and operation from 1.65V to 3.7V supply. It delivers 5000 (X-Y) coordinates/second with 7-sample averaging and supports touch pressure measurement in 4-wire mode for portable point-of-sale terminals.

For engineers reviewing the SX8652IWLTRT datasheet, pinout, applications, or equivalent options, key selection criteria include its integrated pen-detection logic, on-chip data averaging to reduce host bus activity, ultra-low shutdown current (<1 µA), and dual-package availability (14-DFN and WLCSP) for space-constrained embedded UI designs.

Technical Context

The SX8652IWLTRT implements a ratiometric 12-bit successive approximation register (SAR) ADC with internal reference generation, enabling precise coordinate and pressure calculation without external voltage references. Its analog front-end includes dedicated high-ESD-tolerance input buffers for X+/X-/Y+/Y-/AUX/WIPER pins, each rated to ±15kV HBM and ±15kV contact discharge.

Control is executed via a 40–5000 kHz SPI interface with active-low NCS/NIRQ signals and open-drain interrupt output requiring external pull-up. Four programmable operation modes-MANUAL, AUTO, PENDET, and PENTRIG-allow dynamic trade-offs between conversion throughput, power consumption, and host interaction latency.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.65 V to 3.7 V - Enables direct integration with single-cell Li-ion or 3.3 V/1.8 V system rails without LDO overhead.
ADC Resolution	12-bit SAR - Delivers 4096-step X/Y position resolution and accurate pressure-derived RT resistance estimation.
ESD Protection	±15 kV HBM on X+/X-/Y+/Y-/AUX - Eliminates need for external TVS diodes on touchscreen signal lines.
Operating Temperature	−40 °C to +85 °C - Qualified for industrial and consumer portable equipment environments.
Shutdown Current	<1 µA - Preserves battery life during screen idle periods in handheld devices.
Coordinate Throughput	5000 (X-Y) pairs/second with 7-sample averaging - Supports responsive UIs with minimal host polling.
SPI Clock Frequency	40 kHz to 5 MHz - Compatible with low-speed microcontrollers and high-throughput hosts without protocol translation.

Pinout & Package

Package: 14-lead DFN (4.0 mm × 3.0 mm), exposed thermal pad, RoHS-compliant.

Pin	Circuit Role	Design Meaning
AUX/WIPER	Analog input / synchronization trigger	4-wire: auxiliary ADC channel or external acquisition sync; 5-wire: wiper connection for voltage sensing.
VDD	Power supply input	Primary 1.65–3.7 V supply; requires 0.1 µF decoupling capacitor to GND per datasheet layout guidance.
X+/BR	Touchscreen analog I/O	4-wire: X+ electrode; 5-wire: Bottom Right electrode - high-ESD pin with ±15 kV HBM rating.
Y+/TR	Touchscreen analog I/O	4-wire: Y+ electrode; 5-wire: Top Right electrode - same ESD robustness as X+/X-/Y-/BL.
X-/TL	Touchscreen analog I/O	4-wire: X− electrode; 5-wire: Top Left electrode - enables bidirectional coordinate measurement.
Y-/BL	Touchscreen analog I/O	4-wire: Y− electrode; 5-wire: Bottom Left electrode - completes 4-corner resistive panel interface.
GND	Ground reference	Primary analog/digital ground return; backside GND pad enhances thermal performance in DFN package.
SCLK	Digital input	SPI serial clock input; accepts 40 kHz–5 MHz edge-triggered timing per Table 6 specifications.
DIN	Digital input	SPI MOSI line for register writes and command transmission to SX8652IWLTRT.
DOUT	Digital output	SPI MISO line; outputs converted coordinate data, status registers, and AUX channel results.
NIRQ	Open-drain interrupt output	Active-low pen detect or data-ready signal; requires 1–10 kΩ external pull-up to host VIO rail.
NCS	Digital input	SPI chip select; active-low enable for serial communication; must be held low for full transaction duration.
NRST	Digital input	Hardware reset input (DFN only); active-low with internal pull-up - enables deterministic recovery without host firmware dependency.
(NC)	No connect	Pin 14 is unconnected; must be left floating or tied to GND per PCB layout best practice.

Key Features

Feature	Design Value
On-chip ESD protection	±15 kV HBM and ±15 kV contact discharge on all touchscreen analog inputs - removes external protection components and reduces BOM cost.
Programmable operation modes	Four user-selectable modes (MANUAL, AUTO, PENDET, PENTRIG) - allows optimization of power vs. responsiveness for specific UI workflows.
Integrated preprocessing	Configurable on-chip data averaging (up to 7 samples) - lowers host CPU load and improves noise immunity without firmware overhead.
Touch pressure measurement	Direct RT resistance calculation in 4-wire mode - enables pressure-sensitive UI actions (e.g., brush thickness, button activation force).
Low-noise ratiometric conversion	Reference-independent ADC operation using VDD as reference - eliminates drift from external reference inaccuracies and simplifies power design.

Applications

Point-of-Sale Terminals	Portable Medical Instruments
Use Scenario: Touchscreen interface in compact countertop or handheld POS systems operating on battery or USB power. IC Role / Device Role / Timing Role: Primary touchscreen controller acquiring X/Y coordinates and detecting stylus/finger presence via PENDET mode. Use Value: Ultra-low 23 µA active current at 1.8 V/8 kSPS extends battery runtime; ±15 kV ESD tolerance ensures reliability in high-handling retail environments.	Use Scenario: Human-interface touchscreen on portable ultrasound, glucose meters, or patient monitors requiring clinical-grade robustness. IC Role / Device Role / Timing Role: Resistive touch digitizer interfacing with ARM Cortex-M host MCU via SPI, delivering coordinate data with <1 µA shutdown leakage. Use Value: −40°C to +85°C operation and RoHS/WEEE compliance meet medical device environmental and regulatory requirements.
Industrial Handheld Scanners	Consumer Portable Audio Devices
Use Scenario: Ruggedized barcode scanners used in warehouses with frequent electrostatic exposure and mechanical shock. IC Role / Device Role / Timing Role: Touchscreen controller managing 4-wire panel with hardware pen detection (PENDET mode) and interrupt-driven host wake-up. Use Value: Integrated ±15 kV ESD protection on all analog inputs prevents field failures without adding discrete TVS components.	Use Scenario: Touch-enabled audio players or smart speakers with small-form-factor displays and strict power budgets. IC Role / Device Role / Timing Role: Low-power touchscreen interface providing coordinate data to application processor while minimizing system-level current draw. Use Value: 5000 (X-Y) coordinates/second throughput with 7-sample averaging enables smooth gesture response without host polling overhead.

Point-of-Sale Terminals

Portable Medical Instruments

Use Scenario: Touchscreen interface in compact countertop or handheld POS systems operating on battery or USB power.

IC Role / Device Role / Timing Role: Primary touchscreen controller acquiring X/Y coordinates and detecting stylus/finger presence via PENDET mode.

Use Value: Ultra-low 23 µA active current at 1.8 V/8 kSPS extends battery runtime; ±15 kV ESD tolerance ensures reliability in high-handling retail environments.

Use Scenario: Human-interface touchscreen on portable ultrasound, glucose meters, or patient monitors requiring clinical-grade robustness.

IC Role / Device Role / Timing Role: Resistive touch digitizer interfacing with ARM Cortex-M host MCU via SPI, delivering coordinate data with <1 µA shutdown leakage.

Use Value: −40°C to +85°C operation and RoHS/WEEE compliance meet medical device environmental and regulatory requirements.

Industrial Handheld Scanners

Consumer Portable Audio Devices

Use Scenario: Ruggedized barcode scanners used in warehouses with frequent electrostatic exposure and mechanical shock.

IC Role / Device Role / Timing Role: Touchscreen controller managing 4-wire panel with hardware pen detection (PENDET mode) and interrupt-driven host wake-up.

Use Value: Integrated ±15 kV ESD protection on all analog inputs prevents field failures without adding discrete TVS components.

Use Scenario: Touch-enabled audio players or smart speakers with small-form-factor displays and strict power budgets.

IC Role / Device Role / Timing Role: Low-power touchscreen interface providing coordinate data to application processor while minimizing system-level current draw.

Use Value: 5000 (X-Y) coordinates/second throughput with 7-sample averaging enables smooth gesture response without host polling overhead.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TSC2004IPW	12-bit ADC, 1.6–3.6 V supply, ±8 kV HBM ESD, 16-QFN package (4×4 mm)	Lacks integrated pen-detection logic and pressure measurement; requires external comparator for wake-on-touch	Choose when board area permits larger QFN and system already implements external wake circuitry.
Microchip AR1021-I/ML	10-bit ADC, 2.7–5.5 V supply, ±15 kV HBM, 20-MLF package (3×3 mm)	Higher minimum supply voltage limits compatibility with 1.8 V SoCs; no AUX/WIPER dual-function pin	Prefer for legacy 3.3 V designs where 10-bit resolution suffices and WLCSP footprint is not required.

Compared with TI TSC2004IPW and Microchip AR1021-I/ML, the SX8652IWLTRT provides superior ESD robustness at lower supply voltages, integrated pen-triggered acquisition, and dual-package flexibility - making it optimal for next-generation compact, battery-powered touch interfaces.

Availability

SX8652IWLTRT is available at Aetrix Electronics and suitable for point-of-sale terminals, portable medical instruments, industrial handheld scanners, and consumer portable audio devices requiring stable component supply across long production lifecycles.

Supply support for SX8652IWLTRT 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

Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal ICs for sensing, connectivity, and power management.

The SX8652IWLTRT belongs to Semtech's Advanced Communications & Sensing product line, engineered specifically for ultra-low-power, ESD-hardened human interface applications in portable and industrial electronics.

FAQ

What is the primary function of the SX8652IWLTRT in a touchscreen system?

The SX8652IWLTRT serves as a dedicated resistive touchscreen controller that acquires X/Y coordinates and touch pressure (in 4-wire mode) using its integrated 12-bit SAR ADC, processes data with on-chip averaging, and communicates results to the host MCU via SPI. It replaces general-purpose ADCs and discrete logic in touch interface designs, reducing firmware complexity and component count.

Does the SX8652IWLTRT support both 4-wire and 5-wire resistive touchscreens?

Yes, the SX8652IWLTRT natively supports both 4-wire and 5-wire resistive touchscreens. In 4-wire mode, it measures X/Y position and calculates touch pressure (RT resistance); in 5-wire mode, it measures X/Y position only, using the AUX/WIPER pin as the wiper input. Pin configuration and internal sequencing automatically adapt to the selected topology.

How does the SX8652IWLTRT achieve ±15 kV ESD protection without external components?

The SX8652IWLTRT integrates specialized ESD clamp structures directly into the input buffers of X+/X-/Y+/Y-/AUX pins, validated to ±15 kV HBM and ±15 kV contact discharge per JEDEC standards. This on-die protection eliminates the need for external TVS diodes or RC filters, simplifying layout and improving system-level ESD immunity in final products.

What are the power consumption characteristics of the SX8652IWLTRT in different operating modes?

In shutdown mode, the SX8652IWLTRT draws less than 1 µA. In PENDET mode (pen detection active, converter stopped), typical current is 1 µA. At full operation (8 kSPS, 1.8 V), it consumes 23 µA. These ultra-low values enable multi-week battery life in always-on portable touch interfaces without compromising responsiveness.

Is the NRST pin available on the SX8652IWLTRT package?

Yes, the NRST pin is present on the SX8652IWLTRT's 14-lead DFN package (Pin 13) as an active-low hardware reset input with internal pull-up. It is not available on the WLCSP variant. This pin enables deterministic power-on reset independent of SPI command sequences, critical for fail-safe initialization in safety-aware systems.

SX8652IWLTRT Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Package/Case:: 14-WFDFN Exposed Pad

Touchscreen:: 4 or 5 Wire Resistive

Resolution (Bits):: 12 b

Interface:: SPI

Voltage Reference:: Internal

Voltage - Supply:: 1.65V ~ 3.7V

Current - Supply:: 105 µA

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 14-DFN (4x3)

SX8652IWLTRT FAQ

1.How can I place an order for SX8652IWLTRT through Aetrix?

Please submit a Request for Quotation (RFQ) for SX8652IWLTRT 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 SX8652IWLTRT reliable?

The price and inventory of SX8652IWLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SX8652IWLTRT is usually 5 days.

3.What payment methods are accepted for SX8652IWLTRT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SX8652IWLTRT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SX8652IWLTRT?

SX8652IWLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SX8652IWLTRT 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 SX8652IWLTRT?

For technical support, including SX8652IWLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SX8652IWLTRT requirements.

6.How does Aetrix verify that SX8652IWLTRT is sourced from the original manufacturer or authorized distributors?

All SX8652IWLTRT 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 SX8652IWLTRT meets industry standards.

7.What is the process for return or replacement of SX8652IWLTRT?

All SX8652IWLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SX8652IWLTRT, 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 SX8652IWLTRT part is unused and in its original packaging.

Return procedure for SX8652IWLTRT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …