Lumissil Microsystems IS32CS8974A-QWLCA3-TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.13 | $1.13 |
| 15+ | $1.09 | $16.35 |
| 25+ | $1.07 | $26.75 |
| 50+ | $1.01 | $50.50 |
| 100+ | $0.89 | $89.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Lumissil Microsystems |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 25MHz |
| Connectivity | I2C, LINbus, SPI, UART/USART |
| Peripherals | LVD, LVR, POR, PWM, WDT |
| Number of I/O | 20 |
| Program Memory Size | 32KB (32K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 2K x 13 |
| Voltage - Supply (Vcc/Vdd) | 2.5V ~ 5.5V |
| Data Converters | - |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Memory Type | Surface Mount, Wettable Flank |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| Package / Case | 24-WQFN (4x4) |
| Supplier Device Package | 24-WQFN (4x4) |
| ROHS |  |
The Lumissil IS32CS8974A-QWLCA3-TR is an 8051-based 8-bit microcontroller in a tiny 24-WQFN package. It operates from 2.5V to 5.5V and runs at up to 25MHz, with 32KB flash and 2KB RAM. The device includes LVD, LVR, POR, PWM, and WDT peripherals, making it a robust choice for LED lighting, battery management, and automotive applications. Its extended temperature range of -40°C to 125°C ensures reliable performance in harsh environments.
- Industry-standard 8051 core – easy to program with mature toolchains and abundant code examples.
- Ultra-small 4x4mm WQFN – ideal for space-constrained wearable or portable designs.
- Wide temperature range – suitable for automotive under-hood applications.
- Integrated LVD/LVR – prevents data corruption during voltage sags.
LED Matrix Displays
The 8051 core with PWM outputs can drive RGB LED matrices for signage with smooth brightness control.
Battery Management Systems
Its 2.5V minimum voltage and LVD/LVR features make it suitable for monitoring lithium battery packs.
Small Home Appliances
The 32KB flash is enough for wash cycle programs in compact washing machines.
Automotive Interior Switches
With 125°C rating, it can handle under-dash temperature extremes in vehicles.
Industrial Timers
The WDT and POR ensure reliable countdown timers in manufacturing equipment.
Portable Power Tools
Its small 4x4mm package fits in compact drill triggers with PWM speed control.
- Q: What core processor does this MCU use?
- A: It uses the classic 8051 core running at up to 25MHz.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V.
- Q: How much program memory is available?
- A: It has 32KB of flash memory (32K x 16).
- Q: What package is this?
- A: It comes in a 24-WQFN (4x4mm) package.
- Q: What is the temperature rating?
- A: It is rated for -40°C to 125°C.
IS32CS8974A-QWLCA3-TR.pdf
- Q: What core processor does this MCU use?
- A: It uses the classic 8051 core running at up to 25MHz.
- Q: What is the supply voltage range?
- A: It operates from 2.5V to 5.5V.
- Q: How much program memory is available?
- A: It has 32KB of flash memory (32K x 16).
- Q: What package is this?
- A: It comes in a 24-WQFN (4x4mm) package.
- Q: What is the temperature rating?
- A: It is rated for -40°C to 125°C.
