
S3C94A5/F94A5 
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PRODUCT OVERVIEW 
PRODUCT OVERVIEW 
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SAM88RCRI PRODUCT FAMILY 
Samsung's SAM88RCRI family of 8-bit single-chip CMOS microcontrollers offer fast and efficient CPU, a wide range 
of integrated peripherals, and supports Flash device. 
A dual address/data bus architecture and bit- or nibble-configurable I/O ports provide a flexible programming 
environment for applications with varied memory and I/O requirements. Timer/counters with selectable operating 
modes are included to support real-time operations. 
S3C94A5/F94A5 MICROCONTROLLER 
The S3C94A5 can be used for dedicated control functions in a variety of applications, and is especially designed for 
application with printer or etc. 
The S3C94A5/F94A5 single-chip 8-bit microcontroller is fabricated using an advanced CMOS process. It is built 
around the powerful SAM88RCRI CPU core.  
Stop and Idle power-down modes were implemented to reduce power consumption. To increase on-chip register 
space, the size of the internal register file was logically expanded. The S3C94A5/F94A5 has 16K-byte of program 
ROM, and 368-byte of RAM (including 16-byte of working register).  
Using the SAM88RCRI design approach, the following peripherals were integrated with the SAM88RCRI core: 
— 5 configurable I/O ports including ports 
— 15-bit programmable pins for external interrupts  
— One 8-bit basic timer for oscillation stabilization and watch-dog functions 
— Two 16-bit timer/counters and one 8-bit timer/counter with selectable operating modes 
— Watch timer for real time 
— 16 channel A/D converter 
— 8-bit serial I/O interface 
FLASH 
The S3F94A5 microcontroller is available in Flash version. S3C94A5 microcontroller has an on-chip 16K-byte 
masked ROM. The S3F94A5 is comparable to S3C94A5, both in function and in pin configuration.