KS88C4404

CPU
• SAM8 CPU core
Memory
• 1040-byte of internal register file
• 4-kbyte internal program memory area
External Interface
• 64-Kbyte external data memory area
• 64-Kbyte external program memory (ROMless)
• 60-Kbyte external program memory (normal)
Instruction Set
• 78 instructions
• IDLE and STOP instructions
Instruction Execution Time
• 240 ns at 25 MHz fOSC (minimum)
Interrupts
• 20 interrupt sources and 19 interrupt vectors
• Seven interrupt levels
• Fast interrupt processing (level0 and 3-7 only)
Timer/Counters
• Two 8-bit timers with interval timer or PWM mode (timers A and B)
• Two 16-bit timer/counters with four programmable operating modes (timers C and D)
General I/O
• Six 8-bit general I/O ports (ports 0,1,2,3,4, and 5)
• One 8-bit n-channel, open-drain output port (port 6)
• One 8-bit input port (for ADC input or port 7 digital input)
Serial Port
• Full-duplex serial data port (UART)
• Four programmable operating modes PWM and Capture
• Two output channels (PWM0, PWM1)
• 8-bit resolution with 2-bit prescaler
• 97.66-kHz frequency (25-MHz CPU clock)
• Capture module with CAP input pin
Analog-to-Digital Converter
• Eight analog input pins
• 8-bit conversion resolution
• 7.68-s conversion speed (25-MHz CPU clock)
Operating Temperature Range
• 20 to + 85
Operating Voltage Range
• 4.5 V to 5.5 V
Package Type
• 80-pin QFP, 80pin TQFP

The KS88C4404 single-chip microcontroller is fabricated using a highly advanced CMOS process. Its design is based on the powerful SAM8 CPU core. Stop and Idle power-down modes were implemented to reduce power consumption. The size of the internal register file is logically expanded, increasing the addressable on-chip register space to 1040 bytes. A flexible yet sophisticated external interface is used to access up to 64-Kbytes of program and data memory. The KS88C4404 is a versatile microcontroller that is ideal for use in a wide range of general-purpose applications such as CD-ROM/DVD-ROM drives.

Using the SAM8 modular design approach, the following peripherals were integrated with the SAM8 CPU core, KS88C4404 specifications:
- Six configurable 8-bit general I/O ports
- One 8-bit n-channel, open-drain output port
- One 8-bit input port for A/D converter input or digital input
- Full-duplex serial data port with one synchronous and three asynchronous (UART) operating modes
- Two 8-bit timers with interval timer or PWM mode
- Two 16-bit timer/counters with four programmable operating modes
- Two programmable 8-bit PWM modules with corresponding output pins
- One 8-bit capture module with CAP input pin
- A/D converter with 8 selectable input pins

The KS88C4404 is a versatile microcontroller that is ideal for use in a wide range of general-purpose ROM-less applications such as CD-ROM/DVD-ROM drivers.