NXP Semiconductors MPC862PVR66B

Overview

MPC862PVR66B from Freescale Semiconductor is a PowerQUICC™ family integrated communications processor combining a 32-bit PowerPC™ core, communications processor module (CPM), and system integration unit (SIU) in a single 357-pin PBGA package. It operates at up to 66 MHz, features 16 KB instruction cache and 8 KB data cache, supports up to four Fast Ethernet channels via MII/UTOPIA, and targets ATM-enabled networking edge devices requiring embedded protocol acceleration.

For engineers reviewing the MPC862PVR66B datasheet, MPC862PVR66B pinout, MPC862PVR66B application, or MPC862PVR66B equivalent, this page delivers verified technical context on cache architecture, CPM DMA channel count, FEC timing compliance, thermal resistance (RθJB = 13°C/W), and IEEE 1149.1 JTAG debug support - all confirmed for the MPC862P variant per MPC862EC Rev. 3.

Technical Context

The MPC862PVR66B implements a single-issue PowerPC core with 32 GPRs, 4- or 8-KB data cache (8 KB for MPC862P), and 4- or 16-KB instruction cache (16 KB for MPC862P), both physically addressed and LRU-managed. Its CPM includes a 32-bit RISC controller, 8 KB dual-port RAM, and 16 serial DMA channels supporting SCC/SMC peripherals.

It integrates a Fast Ethernet Controller compliant with IEEE 802.3 10/100Base-T, simultaneous MII and UTOPIA Level 2 operation, enhanced SAR (ESAR) mode for ATM OAM/PM, and a system integration unit with bus monitor, software watchdog, PIT, RTC, and IEEE 1149.1 JTAG test access port.

Key Specifications

Pinout & Package

357-pin plastic ball grid array (PBGA), 27 mm × 27 mm, 1.27 mm pitch, RoHS-compliant. Package supports thermal dissipation via bottom-side solder balls connected to internal ground/power planes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar communications processor applications.

Compared with MPC860PZQ66D, MPC862PVR66B delivers 4× instruction cache capacity and hardware-accelerated ATM features essential for carrier-grade DSLAMs; versus MPC8260AZU66D, it offers lower power (1.0 W vs. 2.1 W at 66 MHz) and proven qualification for extended temperature industrial deployments.

Availability

MPC862PVR66B is available at Aetrix Electronics and suitable for DSLAM line cards, ATM edge routers, industrial protocol gateways, and remote terminal units requiring stable component supply across long-lifecycle telecom infrastructure programs.

Supply support for MPC862PVR66B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors) designed high-performance embedded processors for networking, automotive, and industrial markets before its 2015 acquisition.

The MPC862PVR66B belongs to the PowerQUICC™ family - engineered specifically for integrated communications processing in ATM, DSL, and multi-protocol edge devices where CPM offload and deterministic real-time response are critical.

FAQ

What is the maximum operating frequency of the MPC862PVR66B and how does bus mode affect it?

The MPC862PVR66B is rated for 66 MHz operation in 1:1 bus mode (CPU and bus frequencies equal). At higher core frequencies like 80 MHz or 100 MHz, it must be configured in 2:1 mode (bus at half core speed) per Table 4 in MPC862EC Rev. 3. This ensures setup/hold timing compliance for external memory and peripheral interfaces. The MPC862PVR66B's 66 MHz rating reflects guaranteed timing margins for DRAM, Flash, and FEC under worst-case voltage/temperature conditions.

Does the MPC862PVR66B support UTOPIA Level 2, and what design advantages does it provide?

Yes, the MPC862PVR66B supports UTOPIA Level 2 compliant interface with added FIFO buffering, as confirmed in Section 2 Features and Table 12 of MPC862EC Rev. 3. This reduces total cell transmission time by decoupling CPM processing from PHY handshaking, enabling deterministic latency under bursty ATM traffic. It also supports full-duplex operation in both master (ATM side) and slave (PHY side) configurations using a split bus - a capability not present in UTOPIA Level 1.

How many serial DMA channels does the MPC862PVR66B include, and which peripherals do they serve?

The MPC862PVR66B includes 16 serial DMA channels, exclusively allocated to its four SCCs and two SMCs as specified in Table 1 and Section 4 Features of MPC862EC Rev. 3. These channels handle autonomous data movement for HDLC, UART, IrDA, and GCI protocols without CPU intervention, enabling concurrent multi-protocol operation - for example, simultaneous PPP over SCC1 and transparent serial over SMC2.

What thermal resistance parameters are specified for the MPC862PVR66B PBGA package?

The MPC862PVR66B 357-pin PBGA specifies RθJB = 13°C/W (junction-to-board) and RθJA = 37°C/W (junction-to-ambient, natural convection, single-layer board) per Table 3 of MPC862EC Rev. 3. These values assume JEDEC JESD51-8 measurement conditions with vias connecting thermal balls to internal ground planes. For accurate thermal modeling, use RθJB with measured board temperature (TB) in TJ = TB + (RθJB × PD).

Is the MPC862PVR66B pin-compatible with other MPC862 family members such as the MPC862T?

No, the MPC862PVR66B is not pin-compatible with the MPC862T. While both use the same 357-pin PBGA package, Table 1 and Figure 1 of MPC862EC Rev. 3 confirm functional differences in cache size, SCC count, and TSA connectivity that result in distinct signal assignments on shared pins - for example, MPC862P-specific pins for additional cache control and CPM arbitration are unused or repurposed on MPC862T. Board-level replacement requires schematic and layout revision.