Document Number: MPC850EC
Rev. 2, 07/2005
Freescale Semiconductor
Technical Data
MPC850
PowerQUICC™ Integrated
Communications Processor
Hardware Specifications
Contents
This document contains detailed information on power
1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Electrical and Thermal Characteristics . . . . . . . . . . . . 7
4. Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . 8
5. Power Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 9
6. Bus Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7. IEEE 1149.1 Electrical Specifications . . . . . . . . . . . 39
8. CPM Electrical Characteristics . . . . . . . . . . . . . . . . . 41
9. Mechanical Data and Ordering Information . . . . . . . 63
10. Document Revision History . . . . . . . . . . . . . . . . . . . 68
considerations, AC/DC electrical characteristics, and AC
timing specifications for revision A,B, and C of the MPC850
Family.
1 Overview
The MPC850 is a versatile, one-chip integrated
microprocessor and peripheral combination that can be used
in a variety of controller applications, excelling particularly
in communications and networking products. The MPC850,
which includes support for Ethernet, is specifically designed
for cost-sensitive, remote-access, and telecommunications
applications. It is provides functions similar to the MPC860,
with system enhancements such as universal serial bus
(USB) support and a larger (8-Kbyte) dual-port RAM.
In addition to a high-performance embedded MPC8xx core,
the MPC850 integrates system functions, such as a versatile
memory controller and a communications processor module
(CPM) that incorporates a specialized, independent RISC
communications processor (referred to as the CP). This
separate processor off-loads peripheral tasks from the
embedded MPC8xx core.
© Freescale Semiconductor, Inc., 2005. All rights reserved.