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NXP Semiconductors MPC875CVR66
- Part No.:
- MPC875CVR66
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 256-BBGA
- Datasheet:
-
MPC875CVR66.pdf
- Description:
- IC MPU MPC87XX 66MHZ 256BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,130
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Product details
Overview
MPC875CVR66 from Freescale Semiconductor is a 32-bit Power Architecture™ microprocessor with integrated communications processor module (CPM), security engine, dual Fast Ethernet controllers (FEC), USB 2.0 host/function interface, and time-slot assigner (TSA). It operates at 66 MHz core frequency in 1:1 bus mode, supports 1.8-V core / 3.3-V I/O, and targets ATM-enabled networking and controller applications requiring hardware-accelerated IPsec/SSL processing.
For engineers reviewing the MPC875CVR66 datasheet, MPC875CVR66 pinout, MPC875CVR66 application, or MPC875CVR66 equivalent, key selection criteria include its 66-MHz MPC8xx core with MMU and dual 8-KB caches, 256-pin PBGA package, TSA support for T1/ISDN/PCM, and Freescale's PowerQUICC™-specific CPM architecture for offloading serial protocol handling.
Technical Context
The MPC875CVR66 integrates a single-issue 32-bit MPC8xx core with two-way set-associative 8-KB instruction and 8-KB data caches, 32-entry fully associative TLBs supporting 4/16/512 KB and 8 MB page sizes, and advanced on-chip emulation debug. Its system integration unit (SIU) provides clock synthesis, JTAG test access, software watchdog, and periodic interrupt timer.
The communications processor module (CPM) is a dedicated RISC controller with 8-KB dual-port RAM, four baud-rate generators, and serial DMA channels - enabling concurrent HDLC/UART/USB/SMC operation independent of the main CPU. The security engine includes DES/3DES, AES-128/192/256, SHA-1/256, and MD5 accelerators with crypto-channel DMA support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 66 MHz - enables 1:1 bus timing with external memory interfaces up to 66 MHz; supports both 1:1 and 2:1 modes. |
| Cache Memory | 8-KB instruction + 8-KB data cache - physically addressed, two-way set-associative, LRU replacement, lockable per 128-bit block. |
| Security Engine | Hardware-accelerated DES/3DES, AES-128/192/256, SHA-1/256, MD5 - offloads IPsec/SSL/TLS processing from main CPU. |
| Ethernet Interfaces | Dual 10/100 Mbps FEC - supports MII and RMII physical layer interfaces with IEEE 802.3 CDMA/CS MAC functionality. |
| USB Interface | USB 2.0 full-/low-speed compatible - operates as function endpoint, host controller, or loopback diagnostic mode. |
| Time-Slot Assigner | TSA supporting T1, CEPT, ISDN basic/primary rate, PCM highway - enables dynamic multiplexed routing for SCC/SMC channels. |
| Power Supply | 1.8-V core (VDDL), 3.3-V I/O (VDDH), 1.8-V PLL (VDDSYN) - requires voltage sequencing to prevent ESD diode forward bias during power-up/down. |
Pinout & Package
The MPC875CVR66 is housed in a 256-pin plastic ball grid array (PBGA) package with 1.27-mm pitch, designed for four-layer PCB mounting with dedicated VDD/GND planes and thermal via connections to internal ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDL | Core power supply | 1.8-V supply for MPC8xx core and SIU; must not exceed VDDH during power sequencing. |
| VDDH | I/O power supply | 3.3-V supply for all digital I/Os; pins PA[0:15], PB[14:31], PC[4:15], PD[3:15], PE[14:31], MII signals are 5-V tolerant. |
| VDDSYN | PLL power supply | 1.8-V supply for clock synthesizer; differential voltage vs. VDDL must stay within ±100 mV. |
| HRESET | Hardware reset input | Active-low asynchronous reset; initiates mandatory HRCW/SIUMCR configuration sequence per Table 7. |
| EXTAL | Crystal oscillator input | Accepts fundamental-mode crystal (e.g., 50 MHz) for PLL-based clock generation; VIHC = 0.7×VDDH to VDDH. |
| MII1_TXEN | FEC1 transmit enable | Drives MII TXEN signal; 5-V tolerant; used with MII1_TXD[0:3], MII1_TXCLK, MII1_COL, MII1_CRS. |
Key Features
| Feature | Design Value |
|---|---|
| CPM Offload Architecture | Dedicated RISC controller with 8-KB dual-port RAM handles HDLC/UART/USB/SMC protocols without CPU intervention. |
| TSA Multiplexing | Time-slot assigner enables dynamic TDM routing between SCC and SMC for ISDN/T1/PCM applications with independent TX/RX clocking. |
| Security Acceleration | Integrated crypto-channel with DEU/AESU/MDEU units processes IPsec/SSL payloads at line rate without software overhead. |
| Memory Controller Flexibility | Eight-bank DRAM controller supports glueless interface to DRAM, SRAM, Flash, EPROM with programmable wait states (up to 30) and boot CS options. |
| Debug Capability | Eight hardware comparators (4 instruction address, 2 data address, 2 data value) support precise breakpoint triggering and watchpoint monitoring. |
Applications
| ATM Edge Router | Secure VPN Gateway |
|---|---|
Use Scenario: Aggregating multiple T1/E1 lines into an ATM backbone with QoS-aware traffic shaping. IC Role / Device Role / Timing Role: MPC875CVR66 acts as the primary control and packet-processing engine, using TSA for TDM framing and FEC for ATM cell encapsulation. Use Value: Hardware TSA eliminates need for external TDM switch; dual FEC enables redundant WAN links with sub-50-ms failover. | Use Scenario: Embedded firewall appliance performing IPsec tunnel termination for remote office connectivity. IC Role / Device Role / Timing Role: MPC875CVR66 executes Linux-based firewall stack while offloading AES/SHA encryption to its security engine. Use Value: Crypto acceleration achieves 45 Mbps IPsec throughput at 66 MHz - 3× faster than software-only implementation. |
| Industrial Protocol Gateway | USB Host Bridge |
Use Scenario: Converting Modbus RTU over RS-485 to Ethernet/IP for legacy PLC integration. IC Role / Device Role / Timing Role: MPC875CVR66 uses SCC in HDLC mode for serial protocol framing and FEC for TCP/IP stack offload. Use Value: Dual 10/100 FEC allows simultaneous Modbus TCP server and EtherNet/IP adapter functions on separate ports. | Use Scenario: Embedded device acting as USB host for firmware update via flash drive or diagnostic tool connection. IC Role / Device Role / Timing Role: MPC875CVR66 operates USB host controller mode with full-/low-speed support and automatic preamble generation. Use Value: Integrated USB host eliminates external PHY; supports control/bulk/interrupt/isochronous transfers for real-time diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar communications processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC875CVR80 | 80-MHz core frequency; same 256-pin PBGA package and feature set. | Higher throughput for FEC/USB/crypto operations; requires tighter timing closure on external bus. | Select when system demands >66-MHz deterministic latency for real-time packet forwarding. |
| MPC885CZQ80B | Successor PowerQUICC III family part; e300 core, DDR controller, PCI interface, no TSA. | Lacks TSA but adds PCI host bridge and DDR2 support; security engine enhanced with RSA acceleration. | Choose for new designs needing PCI expansion or DDR2 memory; not drop-in compatible due to different pinout and memory interface. |
Compared with MPC875CVR66, the MPC875CVR80 offers higher clock speed in identical packaging for incremental performance uplift, while the MPC885CZQ80B represents a generational upgrade with broader peripheral integration but requires board redesign and software migration.
Availability
MPC875CVR66 is available at Aetrix Electronics and suitable for industrial networking gateways, secure remote access appliances, telecom edge routers, and embedded protocol converters requiring stable component supply across extended temperature ranges (–40°C to +100°C junction).
Supply support for MPC875CVR66 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) was a leading designer of embedded processors and analog/mixed-signal ICs for automotive, industrial, and networking markets.
The MPC875CVR66 belongs to the PowerQUICC™ family - engineered specifically for integrated communications processing in cost-sensitive, power-constrained networking equipment with hardware acceleration for protocol and security tasks.
FAQ
What is the maximum operating junction temperature for the MPC875CVR66?
The MPC875CVR66 has a maximum guaranteed junction temperature (TJ) of 100°C under extended temperature conditions. This rating applies when operating within specified voltage ranges (VDDL = 1.7–1.9 V, VDDH = 3.135–3.465 V) and with proper thermal management - including use of a four-layer PCB with power/ground planes and thermal vias to the ground plane. Exceeding this limit risks permanent damage or accelerated aging.
Does the MPC875CVR66 support pin-compatible upgrades to higher clock speeds?
No, the MPC875CVR66 does not support pin-compatible upgrades to higher clock speeds within the same package. While the MPC875CVR80 shares the identical 256-pin PBGA footprint and electrical interface, it requires validation of timing margins on the external bus and memory subsystem due to increased 80-MHz operation. Board-level changes may be needed for decoupling and signal integrity at higher frequencies.
How does the TSA (Time-Slot Assigner) in the MPC875CVR66 differ from standard TDM controllers?
The TSA in the MPC875CVR66 provides dynamic, software-configurable time-slot routing between SCC and SMC channels with independent transmit/receive frame synchronization and clocking - supporting T1, CEPT, ISDN basic/primary rate, and user-defined PCM formats. Unlike fixed-function TDM chips, it allows runtime reconfiguration of slot assignments and resolution (1- or 8-bit), enabling flexible multi-protocol TDM bridging without external logic.
Can the MPC875CVR66 operate in USB host mode without external transceivers?
Yes, the MPC875CVR66 integrates full USB 2.0 transceiver circuitry and can operate in USB host mode without external PHY components. It supports 12-Mbps full-speed and 1.5-Mbps low-speed operation with NRZI encoding/decoding, bit stuffing, CRC5/CRC16, and automatic preamble generation. Low-speed operation requires an external hub, but full-speed host functionality is self-contained.
What mandatory reset configurations must be implemented for reliable MPC875CVR66 boot?
After HRESET assertion, the MPC875CVR66 requires mandatory register initialization: HRCW[DBGC] and SIUMCR[DBGC] must both be set to binary X1; MBMR[GPLB4DIS] = 0; PAPAR/PADIR fields [5:9], [12:13] = 0; PBPAR/PBDIR fields [14:18], [20:22] = 0; and PCPAR/PCDIR fields [4:5], [8:9], [14] = 0. These values ensure correct pin assignment, debug mode behavior, and GPIO direction control during early boot.
MPC875CVR66 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-BBGA
- Series:
- MPC87xx
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Core Processor:
- MPC8xx
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 66MHz
- Co-Processors/DSP:
- Communications; CPM, Security; SEC
- RAM Controllers:
- DRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- 10Mbps (1), 10/100Mbps (2)
- SATA:
- -
- USB:
- USB 2.0 (1)
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- -40°C ~ 100°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- Cryptography
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 256-PBGA (23x23)
- Additional Interfaces:
- HDLC, I2C, PCMCIA, SPI, TDM, UART
MPC875CVR66 FAQ
1.How can I place an order for MPC875CVR66 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPC875CVR66 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPC875CVR66 reliable?
The price and inventory of MPC875CVR66 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPC875CVR66 is usually 5 days.
3.What payment methods are accepted for MPC875CVR66?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPC875CVR66 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPC875CVR66?
MPC875CVR66 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPC875CVR66 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPC875CVR66?
For technical support, including MPC875CVR66 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPC875CVR66 requirements.
6.How does Aetrix verify that MPC875CVR66 is sourced from the original manufacturer or authorized distributors?
All MPC875CVR66 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPC875CVR66 meets industry standards.
7.What is the process for return or replacement of MPC875CVR66?
All MPC875CVR66 units undergo pre-shipment inspection (PSI). If there is an issue with MPC875CVR66, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPC875CVR66 part is unused and in its original packaging.
Return procedure for MPC875CVR66:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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