The S3F8S5A MCU, a member of Zilog's S3F8 Family of S3 MCUs, is designed specifically for keypads and appliances with LCD displays, plus automotive clocks and audio systems featuring LCD panels.

The S3F8S5A MCU offers a fast and efficient Z8-compatible CPU, 48 KB of Flash memory, 1040 bytes of RAM, and a wide range of integrated peripherals including an 18x8 LCD controller, four comparators, and a specialized PWM module, which interoperate to provide autonomous control of power and system protection. An 8-channel, 10-bit ADC can be used for current measurement and user input control.

The S3F8S5A MCU is designed to be a direct replacement for the S3F84VB device and a suggested replacement for S3F848A, S3F84NB, S3F89235, S3F8275, S3F8274, and S3F8278 devices. It is currently available in the following 2 package types:

• 42-pin SDIP

• 44-pin QFP

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.

• 48 KB of Flash ROM

• 1040 x 8 bits data memory

• Five programmable I/O ports, including four 8-bit ports and one 4-bit port for a total of

• Eight bit-programmable pins for external interrupts

• One 8-bit basic timer for oscillation stabilization and watchdog functions (system reset)

• Three 8-bit timer/counters and two 16-bit timer/counters with selectable operating

• Watch timer for real time operations

• LCD controller/driver

• A/D converter with 8 selectable input pins

• Synchronous SIO modules

• Two asynchronous UART modules

• Pattern generation module