MC68121 - INTELLIGENT PERIPHERAL CONTROLLER

Motorola Semiconductor (now NXP Semiconductors)

Download the MC68121 datasheet PDF. This datasheet also covers the MC68120 variant, as both devices belong to the same intelligent peripheral controller family and are provided as variant models within a single manufacturer datasheet.

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MC68121 intelligent peripheral controller by Motorola Semiconductor (now NXP Semiconductors) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (MC68120-Motorola.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	MC68121
Manufacturer	Motorola Semiconductor (now NXP Semiconductors)
File Size	1.66 MB
Description	INTELLIGENT PERIPHERAL CONTROLLER
Datasheet	MC68121 Datasheet

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number	Description
MC68120	INTELLIGENT PERIPHERAL CONTROLLER
MC68153	BUS INTERRUPTER MODULE
MC68160	ENHANCED ETHERNET INTERFACE TRANSCEIVER
MC68160B	ENHANCED ETHERNET INTERFACE TRANSCEIVER
MC68160C	ENHANCED ETHERNET INTERFACE TRANSCEIVER

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.

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® ItIIOTOROLA Advance Information INTELLIGENT PERIPHERAL CONTROLLER The MC68120/MC68121 Intelligent Peripheral Controller (lPCI is a general purpose, mask programmable peripheral controller. The IPC provides the interface between an M68000 or M6800 Family microprocessor and the final peripheral devices through a system bus and control lines. System bus data is transferred to and from the IPC via dual-port RAM while the software utilizes the semaphore registers to control RAM tasking or any other shared resource. Multiple operating I modes range from a single chip mode with 21 I/O lines and 2 control lines to an expanded mode supporting an address space of 64K bytes. The MC68120 has 2K bytes of on-chip ROM to make full use of all operating modes.