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8051
68HC11
68H908
68332
80C196
Specifications
68HC11A1 MPU with 8 MHz Clock 32K Bytes EPROM, 32K Bytes SRAM 88C681 DUART Chip with 2 Serial and 15 Digital I/O RS-232 Buffering on CPU UART and Serial A of DUART Up to 8 Digital I/O lines from 68HC11A1 8-Channel, 8-Bit ADC on 68HC11F1 All CPU lines brought out to 50 pin connector All I.C.'s are socketed, including CPU Processor Supervisory Circuit with Manual Reset Switch Optional
CB-11 BASIC Interpreter EPROMThe CP-11 is a single board computer based on the 68HC11A1 microcontroller. The CP-11 measures 3.5 by 5.5 inches. Resources on the card can be considered as four separate subsections: 68HC11A1 microcontroller, memory section, 88C681 DUART, and processor supervisory circuit, .
Processor Resources
The 68HC11 offers a number of on-chip resources: up to 8 digital I/O lines, asynchronous serial port ( SCI ), synchronous serial port ( SPI ), and 8-channel/8-bit A/D converter. The SCI is RS-232 buffered and brought out on a header connector.
Memory and DUART
The board supports 32K bytes of EPROM and 28K bytes of SRAM. The 88C681 provides one 8-bit output port, one 7-bit input port, and two serial ports. Serial A of the DUART is RS-232 buffered and brought out on a header connector.
Connectors
All CPU lines ( except for its two crystal pins ) are brought out on a 2 by 25 pin header connector. The CPU's UART is RS-232C buffered and brought out on a 2 by 5 pin header. Serial Port A of the 88C681 is RS-232 buffered and brought out on a 2 by 5 header. The two parallel ports of the 88C681 and its serial port B lines are brought out ( unbuffered ) to a 2 by 10 pin header.
Power Requirements
The CP-11 requires +5 Volts ( regulated ) at 100 ma ( maximum ).
| CP-11 Assembled and Tested | $169 |
| CB-11 BASIC Interpreter | $49 |
Last Updated on 1/5/2008
