MPC8543ECPXAQGB
MPC8543ECPXAQGB - PowerQUICC III 1GHz e500 MPU, 783-FCBGA
The NXP MPC8543ECPXAQGB is a PowerQUICC III integrated communications processor built on the e500 Power Architecture system-on-chip (SoC) platform, featuring a 32-bit single-core CPU running up to 1.0 GHz, housed in a 783-pin FCBGA (29x29 mm) package. It integrates a high-performance e500 core with double-precision FPU, 32 KB I-cache and 32 KB D-cache, plus 256 KB of L2 backside cache, and a triple-speed Ethernet (TSEC) controller plus a DDR memory controller supporting DDR/DDR2 SDRAM.
A microprocessor (MPU) is a single-chip CPU that integrates core, cache, memory controller, and peripheral interfaces, and the MPC8543E belongs to the PowerQUICC III family of communications processors aimed at networking, telecom, and embedded-control infrastructure. PowerQUICC III devices traditionally combine a PowerPC-class core with high-bandwidth system interfaces (PCI/PCI-X, local bus, Gigabit Ethernet, DDR memory) for routers, switches, line cards, and similar networking equipment. Within the broader taxonomy, MPC85xx devices sit between general-purpose embedded CPUs (e.g., PowerQUICC II) and dedicated communications ASICs.
Key features include a 1.0 GHz e500 core with MMU and double-precision FPU, integrated DDR/DDR2 memory controller, three 10/100/1000 Mbps enhanced TSEC Ethernet controllers, dual PCI/PCI-X interfaces, and a 32-bit local bus. The device supports hardware cryptography acceleration for DES, 3DES, AES, and public-key algorithms, plus the RapidIO technology used for chip-to-chip interconnect in chassis-based systems. Power management is handled via the 1.8V / 2.5V / 3.3V supply domains documented in the datasheet.
The e500 core implements the Book-E Power Architecture instruction set, including signal-processing extensions and a memory management unit suited to deeply embedded Linux, VxWorks, or proprietary RTOS environments. The integrated DDR/DDR2 controller with write-buffer reduces external chip count, while the TSEC blocks support jumbo frames, TCP/IP acceleration offload, and quality-of-service queues for carrier-grade Ethernet.
Typical applications include enterprise routers and switches, telecom line cards, industrial control planes, network-attached storage controllers, and secure VPN gateways. The on-chip crypto engine makes the part well suited to IPsec/SSL accelerator designs where AES and public-key math are needed at line rate.
When designing with this device, allocate generous PCB area for the 29x29 mm FCBGA, route DDR signals with matched impedance and length matching, and provide a multi-layer power distribution network for the 1.8V/2.5V/3.3V rails. Designers should reference the NXP MPC8548E hardware specifications document for recommended decoupling, thermal management, and JTAG/COP debug access.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
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