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Infineon Technologies CY8C21334-24PVXA
- Part No.:
- CY8C21334-24PVXA
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY8C21334-24PVXA.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:990
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Product details
Overview
CY8C21334-24PVXA from Cypress Semiconductor is an AEC-Q100 qualified automotive-grade PSoC® programmable system-on-chip featuring an 8-bit M8C Harvard-architecture CPU running at up to 24 MHz, 8 KB flash, 512 bytes SRAM, and four configurable analog and digital PSoC blocks. It operates from 3.0 V to 5.25 V across –40 °C to +85 °C and supports capacitive sensing, PWM, UART, SPI, I²C, and 10-bit ADC in automotive body electronics.
For engineers reviewing the CY8C21334-24PVXA datasheet, CY8C21334-24PVXA pinout, CY8C21334-24PVXA application, or CY8C21334-24PVXA equivalent, key selection criteria include its AEC-Q100 qualification, 24-pin SSOP package with 20 GPIOs, integrated 1.3 V voltage reference, programmable analog mux, and ISSP-enabled partial flash update capability for ECU firmware field updates.
Technical Context
The device implements a fixed-function M8C core with Harvard architecture, supporting up to 24 MHz operation and 4 MIPS throughput. Its digital system comprises four 8-bit PSoC blocks configurable as timers, counters, PWMs (8–32 bit), UART, SPI, CRC, and PRS modules - all routable to any GPIO via global digital interconnect buses.
The analog system integrates four Type E blocks: two CT-based comparators with selectable 1.3 V or 8-bit DAC references, and dual-channel 10-bit SAR ADCs. An 8:1 analog input mux and full-port analog bus enable hardware-controlled precharge for robust capacitive touch sensing on any GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | M8C 8-bit Harvard architecture, 24 MHz max - enables deterministic real-time control without cache or pipeline stalls |
| Flash / SRAM | 8 KB flash with ISSP and partial update support; 512 bytes SRAM - allows field firmware patching without full reprogramming |
| Analog Blocks | 4 × Type E analog blocks: 2 comparators + dual 10-bit ADC - supports simultaneous voltage monitoring and touch sensing |
| Digital Blocks | 4 × 8-bit digital blocks configurable as 8–32-bit PWM, UART, SPI, CRC, PRS - eliminates need for external logic or timing ICs |
| GPIO Capability | 20 programmable pins: 25 mA sink / 10 mA drive, analog input, interrupt, pull-up/down, open-drain - simplifies interface to sensors, LEDs, and switches |
| Clock System | Internal ±5% 24 MHz IMO + low-power ILO - provides accurate timing for CAN/LIN co-processing and sleep-mode wake-up |
| Operating Range | 3.0 V to 5.25 V supply; –40 °C to +85 °C ambient - meets automotive Grade 3 requirements for under-hood and cabin modules |
Pinout & Package
Package: 24-pin SSOP (0.150" wide), JEDEC MO-015AA compliant, 0.635 mm pitch, 8.64 mm × 3.91 mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary 3.0–5.25 V supply rail; decoupling required within 10 mm of pin |
| VSS | Ground reference | Digital and analog common ground; separate AGND routing recommended for ADC stability |
| XRES | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external watchdog or microcontroller reset signals |
| P0[0]–P0[7] | General-purpose I/O | Port 0 pins support analog mux input, comparator inputs, ADC channels, and capacitive sensing with hardware precharge |
| P1[0]–P1[7] | General-purpose I/O | Port 1 pins support digital peripherals (UART, SPI, PWM), interrupt generation, and strong/weak drive modes |
| SCL / SDA | I²C bidirectional bus | Dedicated open-drain pins supporting 400 kHz multi-master I²C communication with internal pull-ups enabled |
| TXD / RXD | UART serial interface | Full-duplex asynchronous transmit/receive; configurable parity, stop bits, and baud rate via firmware |
| CLKIN | External clock input | Accepts up to 24 MHz crystal or CMOS clock source; bypasses internal IMO for precision timing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 3 qualification | Validated for automotive use across –40 °C to +85 °C with HTOL, TC, and ESD testing per Rev G standards |
| Configurable analog multiplexer | Hardware-controlled 8:1 analog input mux + full-port analog bus enables true pin-agnostic capacitive sensing on all 20 GPIOs |
| In-system serial programming (ISSP) | Allows firmware updates over dedicated PSoC pins without removing device from PCB - critical for post-deployment ECU calibration |
| Programmable 1.3 V voltage reference | Stable internal reference used by comparators and ADCs - eliminates need for external precision reference ICs |
| Global digital interconnect | Signal routing matrix enabling any digital block output to connect to any GPIO - removes fixed-peripheral pinout constraints |
Applications
| Automotive Door Module | Body Control Unit (BCU) |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in modern vehicle door assemblies. IC Role / Device Role / Timing Role: Primary MCU managing sensor inputs (switches, Hall effect), actuator outputs (motor drivers, relays), and LIN bus communication. Use Value: Integrated 10-bit ADC monitors motor current for stall detection; programmable PWM drives LED status indicators with dimming control. | Use Scenario: Low-voltage management and distributed I/O aggregation for lighting, wipers, HVAC, and alarm functions. IC Role / Device Role / Timing Role: System controller interfacing with CAN/LIN gateways, executing state machines for relay sequencing and fault logging. Use Value: AEC-Q100 qualification ensures reliability; 512-byte SRAM stores diagnostic trouble codes (DTCs) during brown-out events. |
| Capacitive Touch Dashboard | Seat Position Memory System |
Use Scenario: Non-mechanical user interface for climate, audio, and navigation controls using overlay-sensing electrodes. IC Role / Device Role / Timing Role: Dedicated capacitive sensing engine with hardware precharge and noise rejection algorithms. Use Value: Analog mux and CT comparators enable simultaneous multi-electrode scanning at >100 Hz update rate with <5 pF sensitivity. | Use Scenario: Storing and recalling driver seat position (fore/aft, height, lumbar) based on key fob ID via CAN. IC Role / Device Role / Timing Role: Local controller reading potentiometer feedback, driving DC motors, and communicating via LIN to master ECU. Use Value: 8 KB flash stores multiple seat profiles with checksum protection; EEPROM emulation retains settings after battery disconnect. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INFINEON TLE9842-2QX | ARM Cortex-M0 core, 40 MHz, integrated LIN transceiver, no analog mux or capacitive sensing blocks | Targeted for motor control with embedded gate drivers; lacks native touch sensing capability | Select when LIN physical layer integration and higher CPU performance outweigh programmable analog flexibility |
| NXP S9KEAZ128AMLH | ARM Cortex-M0+, 40 MHz, 128 KB flash, 16 KB RAM, no configurable analog blocks or hardware touch engine | Designed for cost-sensitive entry-level ECUs requiring larger memory and CAN, not analog customization | Select when scalable memory and CAN FD readiness are prioritized over mixed-signal configurability |
Compared with TLE9842-2QX and S9KEAZ128AMLH, CY8C21334-24PVXA uniquely delivers hardware-accelerated capacitive sensing, analog signal routing, and partial flash updates - making it optimal for compact, sensor-rich automotive human-machine interfaces where analog integration reduces BOM count.
Availability
CY8C21334-24PVXA is available at Aetrix Electronics and suitable for automotive door modules, body control units, capacitive touch dashboards, and seat position memory systems requiring stable component supply and long-term lifecycle assurance.
Supply support for CY8C21334-24PVXA 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 high-performance, mixed-signal programmable solutions for automotive, industrial, and consumer applications.
The CY8C21x34 PSoC family targets cost-sensitive automotive subsystems requiring integrated analog/digital functionality, AEC-Q100 compliance, and field-upgradable firmware - especially in body electronics and HMI applications.
FAQ
Is CY8C21334-24PVXA pin-compatible with other CY8C21x34 variants?
Yes - all CY8C21334-xxPVXA devices share identical 24-pin SSOP pinouts and electrical characteristics. Differences are limited to speed grade (24 MHz vs. 12 MHz) and temperature range (AEC-Q100 Grade 3 only). No PCB redesign is needed when upgrading within the same package variant.
Does CY8C21334-24PVXA support CAN bus communication?
No - this device lacks a built-in CAN controller or physical transceiver. It supports UART, SPI, and I²C for local interconnect. CAN functionality requires external transceivers and software-implemented protocol stacks, which are not recommended due to timing constraints and lack of hardware arbitration support.
Can the internal 1.3 V reference be used externally?
No - the 1.3 V reference is internally routed only to comparators and ADCs. It is not available on any GPIO pin and cannot drive external circuitry. For external reference needs, designers must use a dedicated voltage reference IC or DAC output routed through GPIO.
What development tools are required to program CY8C21334-24PVXA?
PSoC Designer™ v5.4 (legacy IDE) is mandatory for configuration and code generation. Programming requires a MiniProg3 or compatible ISSP programmer. Debugging uses the on-chip ICE interface with full-speed emulation, 128 KB trace memory, and complex breakpoint support - no JTAG adapter is needed.
CY8C21334-24PVXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Series:
- PSOC™1 CY8C21xxx
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Verified
- Core Processor:
- M8C
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.4V ~ 5.25V
- Data Converters:
- A/D 28x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
CY8C21334-24PVXA FAQ
1.How can I place an order for CY8C21334-24PVXA through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C21334-24PVXA 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 CY8C21334-24PVXA reliable?
The price and inventory of CY8C21334-24PVXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C21334-24PVXA is usually 5 days.
3.What payment methods are accepted for CY8C21334-24PVXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C21334-24PVXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C21334-24PVXA?
CY8C21334-24PVXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C21334-24PVXA 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 CY8C21334-24PVXA?
For technical support, including CY8C21334-24PVXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C21334-24PVXA requirements.
6.How does Aetrix verify that CY8C21334-24PVXA is sourced from the original manufacturer or authorized distributors?
All CY8C21334-24PVXA 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 CY8C21334-24PVXA meets industry standards.
7.What is the process for return or replacement of CY8C21334-24PVXA?
All CY8C21334-24PVXA units undergo pre-shipment inspection (PSI). If there is an issue with CY8C21334-24PVXA, 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 CY8C21334-24PVXA part is unused and in its original packaging.
Return procedure for CY8C21334-24PVXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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