Freescale Semiconductor
Document Number: MCF54455
Rev. 8, 02/2012
Data Sheet: Advance Information
MCF54455
MAPBGA256 TEPBGA360
17mm x 17mm 23mm x 23mm
MCF5445x ColdFire
Microprocessor Data Sheet
Features
Version 4 ColdFire Core with MMU and EMAC
Up to 410 Dhrystone 2.1 MIPS @ 266 MHz
16-KBytes instruction cache and 16-KBytes data cache
32-KBytes internal SRAM
Support for booting from SPI-compatible flash, EEPROM,
and FRAM devices
Crossbar switch technology (XBS) for concurrent access to
peripherals or RAM from multiple bus masters
16-channel DMA controller
16-bit 133-MHz DDR/mobile-DDR/DDR2 controller
USB 2.0 On-the-Go controller with ULPI support
32-bit PCI controller @ 66MHz
ATA/ATAPI controller
2 10/100 Ethernet MACs
Coprocessor for acceleration of the DES, 3DES, AES,
MD5, and SHA-1 algorithms
Random number generator
Synchronous serial interface (SSI)
4 periodic interrupt timers (PIT)
4 32-bit timers with DMA support
DMA-supported serial peripheral interface (DSPI)
3 UARTs
2
I C bus interface
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
Freescale Semiconductor, Inc., 2007-2012. All rights reserved.Table of Contents
1 MCF5445x Family Comparison . . . . . . . . . . . . . . . . . . . . . . . .4 5.9.1 Overshoot and Undershoot . . . . . . . . . . . . . . . 28
2 Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 5.10 ULPI Timing Specifications . . . . . . . . . . . . . . . . . . . . . 29
3 Hardware Design Considerations . . . . . . . . . . . . . . . . . . . . . . .5 5.11 SSI Timing Specifications . . . . . . . . . . . . . . . . . . . . . . 30
2
3.1 Analog Power Filtering . . . . . . . . . . . . . . . . . . . . . . . . . .5 5.12 I C Timing Specifications . . . . . . . . . . . . . . . . . . . . . . 32
3.2 Oscillator Power Filtering . . . . . . . . . . . . . . . . . . . . . . . .6 5.13 Fast Ethernet Timing Specifications . . . . . . . . . . . . . . 33
3.3 Supply Voltage Sequencing . . . . . . . . . . . . . . . . . . . . . .6 5.13.1 Receive Signal Timing Specifications . . . . . . . 33
3.3.1 Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . .7 5.13.2 Transmit Signal Timing Specifications . . . . . . . 34
3.3.2 Power-Down Sequence . . . . . . . . . . . . . . . . . . . .7 5.13.3 Asynchronous Input Signal Timing
4 Pin Assignments and Reset States . . . . . . . . . . . . . . . . . . . . .7 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.1 Signal Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 5.13.4 MII Serial Management Timing Specifications . 35
4.2 Pinout256 MAPBGA . . . . . . . . . . . . . . . . . . . . . . . . .15 5.14 32-Bit Timer Module Timing Specifications . . . . . . . . . 35
4.3 Pinout360 TEPBGA. . . . . . . . . . . . . . . . . . . . . . . . . .16 5.15 ATA Interface Timing Specifications. . . . . . . . . . . . . . . 36
5 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 5.16 DSPI Timing Specifications . . . . . . . . . . . . . . . . . . . . . 36
5.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . .17 5.17 SBF Timing Specifications. . . . . . . . . . . . . . . . . . . . . . 38
5.2 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . .18 5.18 General Purpose I/O Timing Specifications. . . . . . . . . 39
5.3 ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 5.19 JTAG and Boundary Scan Timing . . . . . . . . . . . . . . . . 40
5.4 DC Electrical Specifications . . . . . . . . . . . . . . . . . . . . .19 5.20 Debug AC Timing Specifications . . . . . . . . . . . . . . . . . 42
5.5 ClockTiming Specifications . . . . . . . . . . . . . . . . . . . . . .20 6 Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.6 Reset Timing Specifications . . . . . . . . . . . . . . . . . . . . .22 7 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.7 FlexBus Timing Specifications . . . . . . . . . . . . . . . . . . .23 8 Product Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.8 SDRAM AC Timing Characteristics. . . . . . . . . . . . . . . .25 9 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
5.9 PCI Bus Timing Specifications . . . . . . . . . . . . . . . . . . .27
MCF5445x ColdFire Microprocessor Data Sheet, Rev. 8
2 Freescale Semiconductor