STK88C4831 Description
STK88C4831 8-bit CPU OSC & Clock Gen. 4.Data/Control Register Line up 1) Sleep mode register. 6) Port 0 interrupt control.
STK88C4831 Key Features
- Operating voltage : 2.5V
- Maximum CPU operating frequency : 4MHz at 2.7V
- Built-in RC oscillator circuit. The oscillation frequency is controlled by an external resistor
- Built-in PLL circuit to generate the system clock with 5 times oscillation frequency
- Audio output ports with 3-bit loudness control One current output port for speaker output. Two PWM output ports can driv
- I/O port. 8 I/O pins. Port 1 with selectable interrupt. Port 1 with 6 CDS interface and 2 schmitt trigger input
- Output port 8 output pins. port 2 with 8 inverter type output pins
- Built in 128 bytes RAM -Built in ROM for program and speech data 48K bytes for 88C4831 37K bytes for 88C3731
- Three 8-bit timers
- Five interrupt sources : NMI