S3F94A5

CPU
`  SAM88RCRI CPU core

Memory
`  16k * 8 bits program memory (ROM)
`  368 *8 bits data memory (RAM)

Instruction Set
`  41 instructions
`  Idle and Stop instructions added for power-down modes

34 I/O Pins
` High sink current (20mA at 3.3V)

Interrupts
`  23 interrupt source and 1 vector
`  One interrupt level

8-Bit Basic Timer
`  Watchdog timer function
`  4 kinds of clock source

16-Bit Timer/Counter 0
`  External event counter
` PWM and capture function

16-Bit Timer/Counter 1
` Programmable 16-bit interval timer
` PWM and capture function

8-Bit Timer/Counter 2
` Programmable 8-bit interval timer
` PWM and capture function

Watch Timer
`  Interval time: 3.91mS, 0.25S, 0.5S, and 1S at 4.19 MHz
` 0.5/1/2/4 kHz Selectable buzzer output

8-bit Serial I/O Interface
`  8-bit transmit/receive mode
`  8-bit receive mode
`  LSB-first or MSB-first transmission selectable
`  Internal or external clock source

A/D Converter
`  10-bit converter resolution
`  50us conversion speed at 1MHz f_ADC clock
`  16-channel

Two Power-Down Modes
`  Idle mode: only CPU clock stops
`  Stop mode: system clock and CPU clock stop

Oscillation Sources
`  Crystal, ceramic, or RC for main clock (Internal or external RC oscillation)
`  System clock frequency: 0.4 MHz 12 MHz
`  CPU clock output

Instruction Execution Times
`  333nS at 12 MHz fx (minimum)

Operating Voltage Range
`  2.0 V to 5.5 V at 4.2 MHz
` 2.7 V to 5.5 V at 8 MHz
` 3.0 V to 5.5 V at 12 MHz

Operating Temperature Range
`  25 to +85

Package Type
`  44-pin QFP, 42-pin SDIP

Smart Option
` Oscillator type selectable by ROM option (ROM address 3FH)

The S3F94A5 can be used for dedicated control functions in a variety of applications, and is especially designed for application with printer or etc.

The S3C94A5/S3F94A5 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/S3F94A5 has 16K-byte of program ROM, and 368-byte of RAM (including 16-byte of working register).

S3F94A5 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