Infineon CY8C27443-24SXI 8-Bit MCU, SOIC24 Package for Home Appliances & Consumer Electronics Control

Infineon CY8C27443-24SXI 8-Bit MCU Overview for Home Appliance & Consumer Device Control

The Infineon CY8C27443-24SXI is a cost-effective, easy-to-integrate 8-bit microcontroller (MCU) designed for B2B applications that demand reliable basic control, simplified manufacturing, and energy efficiency-targeted at Home Appliances (toasters, coffee makers, smart light switches), Consumer Electronics (portable fans, small audio devices), and Internet of Things (IoT) (low-power sensor nodes for home monitoring). It integrates critical features-24MHz CPU clock speed, 32KB flash memory, 2KB RAM, essential digital peripherals (UART, SPI, I2C), 4??A typical standby current, SOIC24 through-hole/surface-mount package, and -40??C to +85??C operating temperature-to enable straightforward, low-cost control of everyday household and consumer devices.

With entry-level 8-bit control functionality + easy-to-manufacture packaging (tuned for home and consumer needs), it balances reliability with affordability and simplified assembly. This makes it ideal for engineers prioritizing cost efficiency (reducing BOM expenses for high-volume appliances), manufacturing ease (lowering soldering errors), and basic power management (cutting idle energy use in always-on devices). As part of Infineon??s PSoC 1 series-a lineup trusted by 190,000+ developers in consumer and home appliance sectors-it meets strict quality benchmarks: RoHS 2 compliance, ISO 9001 certification, IEC 61000-6-3 EMC compliance (consumer/home environments), and 6,000+ hours of reliability testing (peripheral stability, long-term power efficiency, temperature resilience).

Senior engineers at a leading small home appliance brand endorse it: ??This 8-bit MCU powers our coffee makers. It cut BOM costs by 25% vs. 32-bit MCUs, and the SOIC24 package reduced soldering errors by 18%. We now hit 99.91% appliance uptime and 96% client satisfaction.?? For more reliable home appliance and consumer electronics microcontrollers, visit IC Manufacturer.

Technical Parameters of Infineon CY8C27443-24SXI

Parameter	Specification
Function	8-bit microcontroller (MCU) for basic control, peripheral management, and low-power home/consumer device operation
CPU Core	8-bit proprietary core (optimized for low-power, basic control tasks)
CPU Clock Speed	Up to 24MHz
Memory	32KB flash memory (program storage), 2KB RAM (data handling)
Supply Voltage Range	2.7V to 5.5V DC (compatible with 3.3V IoT and 5V home appliance systems)
Standby Current (Typ)	4??A (at 3.3V supply, RAM retention mode, 25??C)
Active Current (Typ)	8mA (at 3.3V supply, 24MHz clock speed, full peripheral use)
Integrated Peripherals	Digital: 2x UART, 1x SPI, 1x I2C, 16x GPIO pins; Analog: 8-bit ADC (4 channels, 100kSPS)
Operating Temperature Range	-40??C to +85??C (consumer/home temperature grade)
Package Type	SOIC24 (24-pin Small Outline Integrated Circuit Package), 15.8mm x 7.5mm x 2.7mm dimensions (through-hole/surface-mount compatible, 1.27mm pin spacing)
Compliance	RoHS 2 compliant, ISO 9001 certified, IEC 61000-6-3

Key Technical Features of CY8C27443-24SXI 8-Bit MCU

• 24MHz 8-Bit CPU: Balances performance and cost. A home appliance brand noted: ??Coffee maker heating cycle timing improved by 10%-no over/under brewing, reducing customer complaints by 22% and warranty claims by $90,000 yearly.??
• 32KB Flash + 2KB RAM: Fits basic control code. A consumer brand shared: ??Portable fan speed control code (28KB) fits perfectly-no external memory needed, cutting BOM costs by $0.20 per unit and PCB space by 15%.??
• SOIC24 Easy-Solder Package: Reduces manufacturing errors. A small-appliance brand confirmed: ??Soldering error rate dropped by 18% vs. QFN24-we saved $60,000 yearly on rework, and production throughput rose by 12%.??
• 4??A Low Standby Current: Cuts idle power. A smart home brand said: ??Light switch idle power use dropped by 30%-meets ENERGY STAR? standards, helping us enter 4 new eco-focused retail chains.??
• 4-Channel 8-Bit ADC: Handles basic sensor data. A home brand explained: ??Refrigerator temperature sensing (4 points) works seamlessly-no external ADC, cutting component count by 25% and design time by 14%.??

Advantages of CY8C27443-24SXI vs. Typical Alternatives

Compared to 32-bit MCUs (overkill for basic control), low-clock 8-bit MCUs (too slow for timing-critical tasks), and QFN24-package 8-bit MCUs (hard to solder), the CY8C27443-24SXI solves critical B2B pain points-backed by real customer feedback:

1. Lower Cost Than 32-Bit MCUs for Basic Control: 32-bit MCUs cost 40% more than this 8-bit model but offer unnecessary performance for coffee makers/toasters. The 8-bit design cuts BOM expenses. A home appliance brand said: ??Our old 32-bit MCU coffee makers cost $1.20 per unit-this 8-bit model costs $0.72. We saved $240,000 yearly on 500,000 units and kept the same reliable control functionality.??

2. Faster Timing Than Low-Clock 8-Bit MCUs: Low-clock 8-bit MCUs (12MHz) cause 15% slower heating cycle timing in coffee makers, leading to inconsistent brewing. The 24MHz speed fixes this. A consumer brand shared: ??Our old 12MHz MCU coffee makers had 15% inconsistent brews-this 24MHz model has 3%. Customer complaints dropped by 22%, and repeat purchases rose by 16%.??

3. Easier Manufacturing Than QFN24-Package 8-Bit MCUs: QFN24 packages require precision soldering (error rate 25%), while SOIC24??s through-hole/surface-mount design cuts errors to 7%. A small-appliance brand confirmed: ??Our old QFN24 MCU toasters had 25% soldering errors-this SOIC24 model has 7%. We saved $60,000 on rework, and production teams reported 30% less frustration with assembly.??

Typical Applications of Infineon CY8C27443-24SXI

This practical 8-bit MCU excels in cost-sensitive, basic-control B2B designs-proven in these key use cases:

• Home Appliances (Coffee Makers): 24MHz CPU ensures consistent brewing, low standby cuts idle power. A home brand confirmed: ??Brew consistency hit 97%, idle power down by 30%, warranty costs reduced by $90,000 yearly.??
• Consumer Electronics (Portable Fans): SOIC24 eases manufacturing, GPIO pins handle speed control. A consumer brand reported: ??Soldering errors down by 18%, fan speed accuracy rose to 99%, sales grew by 20% in 6 months.??
• Internet of Things (IoT) (Home Sensor Nodes): Low standby extends battery, 4-channel ADC fits temp/humidity sensing. An IoT brand shared: ??Sensor battery life up by 1.8 months, BOM costs cut by 20%, client retention hit 95%.??
• Home Appliances (Smart Light Switches): Low standby meets energy standards, UART enables basic connectivity. A smart home brand noted: ??Energy STAR? compliance achieved, switch idle power down by 30%, we added 4 eco-retail partners.??
• Consumer Electronics (Small Audio Devices): SPI handles audio control, compact package fits device enclosures. A consumer brand confirmed: ??Audio volume control reliability hit 99.9%, device size kept under 50mm, we outsold competitors by 18% in Q3.??

Frequently Asked Questions (FAQ) About Infineon CY8C27443-24SXI

Why is an 8-bit MCU better than a 32-bit MCU for coffee makers?

Coffee makers only need basic heating cycle control-32-bit MCUs cost 40% more but offer no real benefit. The 8-bit model cuts costs while maintaining reliability. A home engineer said: ??Our 32-bit MCU coffee makers cost $1.20-this 8-bit model costs $0.72. We saved $240,000 yearly and kept the same consistent brewing performance.??

How does 24MHz clock speed improve home appliance performance?

Home appliances like coffee makers need precise 1-second heating cycle timing-12MHz MCUs cause 15% slower timing (1.15s cycles), leading to over/under brewing. The 24MHz speed ensures 1s accuracy. A consumer engineer said: ??Our 12MHz MCU coffee makers had 15% bad brews-this 24MHz model has 3%. Complaints dropped by 22%, and repeat buys rose by 16%.??

What value does SOIC24 package add for small-batch appliance production?

Small-batch production often uses basic soldering equipment-QFN24 packages need expensive precision tools (error rate 25%), while SOIC24 works with standard gear (error rate 7%). A small-appliance engineer said: ??QFN24 rework cost $60,000 yearly-SOIC24 cut that to $14,000. Production is faster, and our team spends less time fixing errors.??

How does 4??A standby current help meet energy efficiency standards?

ENERGY STAR? requires smart light switches to use ??0.1W idle power-6??A standby (common in old 8-bit MCUs) uses 0.0198W, while 4??A uses 0.0132W (well under the limit). A smart home engineer said: ??Our old 6??A switch failed ENERGY STAR?-this 4??A model passes. We entered 4 eco-retails, growing revenue by $320,000 yearly.??

Why is -40??C to +85??C temperature range suitable for outdoor consumer devices?

Outdoor devices like portable fans face -30??C winters and +75??C summers-narrow-range MCUs (0??C?C70??C) fail 17% of the time in extreme temps. The wide range ensures year-round use. A consumer engineer said: ??Our old 0??C?C70??C outdoor fans failed 17% in winter-this model fails 2%. Warranty costs dropped by $75,000 yearly, and we added a camping gear retailer partner.??