The S3F94C4 MCU, a member of Zilog's S3F9 Series of S3 Microcontrollers, is available in 16-pin and 20-pin packages. It offers a fast and efficient Z8-compatible CPU, 4KB of Flash memory, and a wide range of integrated peripherals.

The S3 Family CPU features an efficient register-oriented architecture and a sophisticated interrupt controller allowing for fast context-switching. The Flash memory is CPU-programmable, and has a 128-byte sector size. The internal oscillator is switchable between 3.2 MHz and 0.5 MHz for low-power applications.

A 14-bit PWM and 10-bit ADC make this device ideal for small home appliance applications, while the wide 1.8V to 5.5V operating voltage range and internal programmable low-voltage reset suit small battery-powered applications.

For technical assistance with this or any of Zilog's S3 Family of products, log in to Zilog's Technical Support interface to create a support ticket, and select S3 Family from the Product Line menu. For sales inquiries, please contact a Zilog S3 Family sales representative.

Third Party Tools for Zilog's S3 Family of products are listed on our Third Party Tools page.

• SAM86 Z8-compatible CPU core

• 4 KB internal Flash program memory

• 128-byte sector size

• CPU-programmable with LDC instruction

• Fast 25 µs byte programming time

• 208-byte general-purpose register area

• 41 CISC instructions

• 4 interrupt sources (2 external interrupts and 2 internal interrupts)

• 14 programmable GPIO pins (16-pin packages)

• 18 programmable GPIO pins (20-pin packages)

• Internal oscillator: 3.2 MHz or 0.5 MHz

• External crystal oscillator: 10 MHz max