S3P7335

Memory
` 512-nibble RAM
` 16K-byte ROM

I/O Pins
` Input only: 4 pins
` Output only: 28 pins
` I/O: 24 pins

LCD Controller/Driver
` Maximum 14-digit LCD direct drive capability
` 28 segment x 4 common signals
` Display modes: Static, 1/2 duty (1/2 bias) 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias)

8-Bit Basic Timer
` Programmable interval timer functions
` Watch-dog timer function

8-Bit Timer/Counter
` Programmable 8-bit timer
` External event counter
` Arbitrary clock frequency output
` External clock signal divider
` Serial I/O interface clock generator

Watch Timer
` Time interval generation : 0.5 s, 3.9 ms at 32.768 kHz
` Frequency outputs to BUZ pin
` Clock source generation for LCD

8-Bit Serial I/O Interface
` 8-bit transmit/receive mode
` 8-bit receive mode
` Data direction selectable (LSB-first or MSB-first)
` Internal or external clock source

A/D Converter
` 4-channels with 8-bit resolution

Bit Sequential Carrier Buffer
` Support 16-bit serial data transfer in arbitrary format

PLL Frequency Synthesizer
` Level = 300 mVp-p (min)
` AMVCO range = 0.5 MHz to 30 MHz
` FMVCO range = 30 MHz to 150 MHz

16-Bit Intermediate Frequency (IF) Counter
` Level = 300 mVp-p (min)
` AMIF range = 100 kHz to 1 MHz
` FMIF range = 5 MHz to 15 MHz

Interrupts
` Four internal vectored interrupts
` Four external vectored interrupts
` Two quasi-interrupts

Memory-Mapped I/O Structure
` Data memory bank 15

Three Power-Down Modes
` Idle: Only CPU clock stops
` Stop1: Main system or subsystem clock stops
` Stop2: Main system and subsystem clock stop
` CE low: PLL and IFC stop

Oscillation Sources
` Crystal or ceramic oscillator for main system clock
` Crystal for subsystem clock
` Main system clock frequency: 4.5 MHz (Typ)
` Subsystem clock frequency: 32.768 kHz (Typ)
` CPU clock divider circuit (by 4, 8, or 64)

Instruction Execution Times
` 0.9, 1.8, 14.2 ms at 4.5 MHz
` 122 ms at 32.768 kHz (subsystem)

Operating Temperature
` 40 to 85

Operating Voltage Range
` 1.8 V to 5.5 V at 3MHz
` PLL/IFC operation: 2.5V to 3.5V or 4.0V to 5.5V

Package Type
` 80-pin QFP

The S3P7335 single-chip CMOS microcontroller has been designed for high performance using Samsung's newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontrollers).

With features such as LCD direct drive capability, 4-channel A/D converter, 8-bit timer/counter, watch timer and PLL frequency synthesizer, S3P7335 offers you an excellent design solution for a wide variety of applications that require LCD functions and audio applications.

Up to 56 pins of the 80-pin QFP package, it can be dedicated to I/O. Eight vectored interrupts provide fast response to internal and external events. In addition, the S3P7335's advanced CMOS technology provides for low power consumption and a wide operating voltage range.