|SPECIFICATIONS FOR VPL-31/51:|
- 89C61/89C52 CPU operating at 11.0592 MHz crystal.
- 32K user RAM using 62256 with battery backup using NICD
- 16K bytes of powerful monitor EPROM using 27512.
- One memory socket is provided for expansion up to 64K
- On board ISP programming facility with windows based ISP
- 48 I/O lines using 2 nos. of 8255.
- Three channel Timer/Counter using 8253
- On board 12 bit ADC using AD574
- On board 1 channel DAC using DAC0800
- On board Real Time Clock using RTC6242
- Aux. RS-232C interface using 8251 terminated on 9 pin D-Type
- 20x2 Alphanumeric LCD display with Backlite.
- 101 ASCII keyboard interface using 89C2051 operating @
- Two external interrupts INT0 & INT1 are available at FRC
- RS-232C using Rx/Tx of 8051 terminated on 9 pin D-Type
- On board Single line Assembler/Disassembler
- Two modes of operation:
- Powerful software commands like EXAMINE/EDIT MEMORY,
EXAMINE/EDIT REGISTERS, SINGLE STEPPING, EXECUTION,
BREAK POINT can be used through ASCII keyboard or
PC serial mode.
- Facility for uploading/downloading of files from/to PC.
- All Address, Data and Control Signals, are buffered and
available at the FRC connector.
- Enclosed in attractive ABS plastic cabinet with cover.
- In-built Power Supply
- Userís Manual, Cables & Connectors.