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MC68B21 - 8-BIT MICROPROCESSING UNIT

Download the MC68B21 datasheet PDF. This datasheet also covers the MC68A21 variant, as both devices belong to the same 8-bit microprocessing unit family and are provided as variant models within a single manufacturer datasheet.

General Description

, device operation and pin assignments-refer to the M6800 Microcomputer System Design Data brochure.

MC68BOO ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, ±5%, VSS = 0, T A = 0 to 700 C unless otherwise noted.) Input High Volt

Key Features

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📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MC68A21-Motorola.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
MC68B29 MEMORY MANAGEMENT UNIT
MC68B00 8-BIT MICROPROCESSING UNIT
MC68B01 Microcontroller / Microprocessor
MC68B02 Microprocessor
MC68B03 Microcontroller / Microprocessor

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Advance Inforlll.ation 1.5 AND 2.0 MHz COMPONENTS FOR THE M6800 MICROCOMPUTER SYSTEM The eight devices described in this data sheet extend the operating frequency of the M6800 Microcomputer Family. The block diagrams and device operation are the same as for the basic M6800-series components. • Fully Hardware and Software Compatible with the M6800 Family • Power Dissipation Approximately 20% Lower Than on Standard MC6800 Series • Clock Specification Improved for Reduced Complexity of Clock Generator/Driver Circuitry • The MC6821 and its higher-frequency versions provide drive capability of two TTL loads on all A- and B-side buffers, improving the drive capability of the MC6820. 1.5 MHz 2.