Allen Systems CP-550

The CP-550 is a high-speed 8051 card featuring an optional LCD display and keypad. It uses the recently introduced 87C550 MPU, with 8K bytes of on-chip EPROM, and an 8-channel, 10-bit A/D converter. As a member of the high-speed microcontroller family, its performance is up to 8 times faster than a standard 8051 running at 12 MHz. The LCD display option supports two configurations: 2 lines of 20 characters or 4 lines of 20 characters. The keypad option includes a 4 by 5 keypad and keypad controller chip.

http://www.allen-systems.com/cp550.htm

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