Features:

• Onboard MAX232 interface circuit for easy communication with a computer and other serial devices
• DC plug-in jack for power input
• Onboard bridge rectifier enables the board to accept both AC and DC input voltages
• Onboard 5V regulator(LM7805) with filtering capacitors and heatsink
• Power Status LED(Green) and a general purpose user LED(Red)
• Onboard quartz crystal 11.0592 Mhz oscillator circuit
• Port extensions for all ports
• External pull-up resistors for Port 0
• Vin, 5V and Gnd bus provided

Specifications:

• 1T 8051 processor
• Max frequency up to16 MHz
• Wide operating voltage: 2.4V to 5.5V
• Temperature range: -40℃ to 105℃
• Up to 6-ch PWM
• Programmable dead-zone generator
• 18 KB of Flash memory
• 1 KB of SRAM
• Supports configurable Data Flash
• Supports program update by:
• ISP (In-System Programming)
• ICP (In-Circuit Programming)
• IAP (In-Application Programming)