VRS1000
Key Features
- General 80C51/80C52 family compatible 64kB byte on-chip Flash memory In-System Programming (ISP) capability of Flash Program voltage: 5V 1024 bytes on chip data RAM Four 8-bit I/Os + one 4-bit I/O 5-Channel PWM on P1.3 to P1.7 Full duplex serial port (UART) Three 16-bit Timers/Counters Watch Dog Timer Bit operation instruction 8-bit Unsigned Multiply and Division instructions BCD arithmetic Direct and Indirect Addressing Two Levels of Interrupt Priority and Nested Interrupts Power saving modes: Code protection function Low EMI (inhibit ALE) Industrial Temperature range (-40ºC to +85ºC) 5V version available FIGURE 2: VRS1000 QFP-44 AND PLCC-44 PIN OUT DIAGRAMS P0.5/AD5 P0.4/AD4 P0.6/AD6 P0.7/AD7 #PSEN P2.7/A15 P2.6/A14 P2.5/A13 23 22 P0.3/AD3 P0.2/AD2 P0.1/AD1 P0.0/AD0 VDD P4.2 T2/P1.0 33 34 #EA P4.1 ALE P2.4/A12 P2.3/A11 P2.2/A10
