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NXP Semiconductors MPC870CVR66
- Part No.:
- MPC870CVR66
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 256-BBGA
- Datasheet:
-
MPC870CVR66.pdf
- Description:
- IC MPU MPC8XX 66MHZ 256BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MPC870CVR66 from Freescale Semiconductor is a 32-bit Power Architecture™ microprocessor with integrated communications processor module (CPM), dual 10/100 Mbps Fast Ethernet controllers, USB 2.0 interface, and 8-Kbyte instruction/data caches - operating at 66 MHz core frequency in 1:1 bus mode, supporting embedded networking and controller applications requiring deterministic real-time I/O handling.
For engineers reviewing the MPC870CVR66 datasheet, MPC870CVR66 pinout, MPC870CVR66 application, or MPC870CVR66 equivalent, this page delivers verified technical context, validated package mapping, confirmed cache/MMU architecture, exact thermal/power specs per Rev. 4 hardware specification, and two documented alternative parts for PowerQUICC™-based industrial gateway and telecom edge designs.
Technical Context
The MPC870CVR66 implements a single-issue MPC8xx core with physically addressed, two-way set-associative 8-Kbyte instruction and data caches, 32-entry fully associative TLBs, and support for 4/16/512 Kbyte and 8 Mbyte page sizes. Its CPM includes 8-Kbyte dual-port RAM and RISC-based serial DMA channels for SCC/SMC offload.
It integrates a system integration unit (SIU) with clock synthesizer, IEEE 1149.1 JTAG debug interface, software watchdog, and periodic interrupt timer - all operating under 1.8-V core (VDDL) and 3.3-V I/O (VDDH) with 5-V tolerant pins on PA/PB/PC/PD buses and MII interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 32-bit MPC8xx Power Architecture™ core, single-issue, branch-predicting, with 32 GPRs |
| Core Frequency | 66 MHz - supports both 1:1 and 2:1 bus-to-core ratio modes |
| Cache | 8-Kbyte instruction cache + 8-Kbyte data cache - physically addressed, LRU replacement, lockable per 128-bit block |
| Memory Management | MMU with 32-entry ITLB/DTLB; supports 4/16/512 Kbyte and 8 Mbyte pages across 16 virtual address spaces |
| Fast Ethernet | Dual 10/100 Mbps FEC controllers - compliant with IEEE 802.3®, interfacing via MII/RMII |
| USB Interface | USB 2.0 full-/low-speed compatible - supports function endpoint, host controller, or loopback diagnostics |
| Power Supply | 1.8 V ±0.1 V core (VDDL), 3.3 V ±0.165 V I/O (VDDH), 1.7–1.9 V PLL (VDDSYN); 5-V tolerant on selected pins |
| Thermal Rating | Junction temperature max 95 °C (standard), 100 °C (extended); RθJA = 43 °C/W (1-layer board, natural convection) |
Pinout & Package
The MPC870CVR66 is housed in a 256-pin PBGA (Plastic Ball Grid Array) package with 1.27 mm pitch, designed for high-density routing and thermal dissipation via soldered thermal balls to internal ground planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDL | Core power supply | 1.8-V supply for CPU core and internal logic; must not exceed VDDH during power-up/down |
| VDDH | I/O power supply | 3.3-V supply for all digital I/O; enables 5-V tolerance on designated pins when VDDH ≥ 3.135 V |
| VDDSYN | PLL power supply | 1.7–1.9-V supply dedicated to clock synthesizer; differential voltage vs. VDDL must stay ≤100 mV |
| HRESET | Hardware reset input | Active-low asynchronous reset; initiates mandatory HRCW/SIUMCR configuration sequence on deassertion |
| TMS/TCK/TDO/TDI | JTAG test access port | IEEE 1149.1-compliant boundary-scan interface for emulation, debug, and production testing |
| MII1_TXEN / MII_MDIO | FEC1 management interface | Media-independent interface control and data lines for 10/100 Mbps Ethernet PHY communication |
| PA[0:15] | Programmable I/O port A | Multi-function 16-bit parallel port; supports GPIO, SMC/SCC signals, and 5-V tolerant inputs/outputs |
| USB_DP / USB_DM | USB differential pair | Full-speed (12 Mbps) or low-speed (1.5 Mbps) USB 2.0 physical layer interface; requires 90-Ω differential impedance routing |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CPM | Offloads serial protocol processing (HDLC/UART/PPP/IrDA/BISYNC) from main core using dedicated 32-bit RISC controller and 8-Kbyte dual-port RAM |
| Dual FEC Controllers | Enables concurrent 10/100 Mbps Ethernet links without external PHY arbitration; supports MII and RMII physical layer interfaces |
| USB 2.0 Dual-Role Support | Allows same silicon to operate as USB device (endpoint), USB host (controller), or diagnostic loopback - reducing BOM count in field-deployable gateways |
| Memory Controller Flexibility | Eight-bank DRAM/SRAM/Flash controller with dynamic bus sizing (8/16/32-bit), up to 30 wait states per bank, and glueless interface to common memory technologies |
| Advanced Debug Infrastructure | Eight hardware watchpoint comparators (4 instruction address, 2 data address, 2 data value) enabling precise breakpoint insertion and trace-triggered capture |
| Power Sequencing Compliance | Defined mandatory ramp order (VDDL ≤ VDDH) and voltage delta limits (≤100 mV between VDDL/VDDSYN) prevent ESD diode forward-bias damage during power transitions |
Applications
| Industrial Protocol Gateway | Telecom Edge Router |
|---|---|
Use Scenario: Bridging Modbus TCP, CANopen, and Profibus DP traffic between factory-floor devices and cloud SCADA systems. IC Role / Device Role / Timing Role: Main controller executing real-time protocol stacks while managing dual Ethernet ports and serial management channels (SMC). Use Value: Integrated CPM handles time-critical serial framing and CRC generation off-core, preserving 66-MHz CPU cycles for application-layer logic and TLS handshake acceleration. | Use Scenario: Compact DSLAM or xDSL termination unit aggregating multiple subscriber lines into a 10/100 Mbps upstream link. IC Role / Device Role / Timing Role: System-on-chip processor running Linux-based packet forwarding, QoS scheduling, and ADSL line management firmware. Use Value: Dual FEC controllers enable simultaneous upstream/downstream Ethernet traffic; USB host mode supports firmware update via flash drive without requiring external USB hub IC. |
| Secure Remote Terminal Unit | Legacy Network Bridge |
Use Scenario: Oil & gas RTU performing encrypted telemetry upload over cellular modem while monitoring analog/digital field sensors. IC Role / Device Role / Timing Role: Deterministic real-time controller with watchdog supervision, secure boot, and AES-128 encryption for payload confidentiality. Use Value: Though MPC870 lacks the security engine of MPC875, its MMU-enforced memory protection and cache coherency ensure robust separation between control and crypto tasks in software-implemented IPsec. | Use Scenario: Retrofitting legacy RS-232/RS-485 industrial equipment with TCP/IP connectivity using minimal PCB space. IC Role / Device Role / Timing Role: Standalone bridge processor converting serial protocols to Ethernet packets via built-in SCC and FEC. Use Value: Single-chip solution eliminates need for external UART-to-Ethernet ASIC; 66-MHz core provides sufficient throughput for 115.2 kbps serial-to-10 Mbps Ethernet translation with <50 µs latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar communications processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPC875CVR66 | Includes hardware security engine (AESU/DEU/MDEU), TSA for TDM, and 10BaseT Ethernet; identical pinout and core spec | Required for IPsec/SSL offload or ISDN/T1 time-slot multiplexing; adds ~150 mW typical power draw | Select MPC875CVR66 if cryptographic acceleration or TDM bus support is needed; otherwise MPC870CVR66 reduces cost and thermal load |
| MPC885CZQ66D | Newer PowerQUICC™ II Pro derivative; 66 MHz core, DDR2 memory controller, PCI interface, and enhanced FEC with jumbo frame support | Targets higher-throughput applications (e.g., VoIP gateways, multi-WAN routers); requires PCB redesign due to 484-pin PBGA and different power sequencing | Choose MPC885CZQ66D for future-proofing with DDR2, PCI, and larger memory capacity; MPC870CVR66 remains optimal for cost-sensitive, footprint-constrained legacy upgrades |
Compared with MPC875CVR66, MPC870CVR66 removes security and TDM functions to reduce cost and power, while retaining identical cache, MMU, dual FEC, and USB capabilities; versus MPC885CZQ66D, it offers proven reliability and simpler layout but lacks DDR2/PCI and requires software-based crypto.
Availability
MPC870CVR66 is available at Aetrix Electronics and suitable for industrial protocol gateways, telecom edge routers, secure remote terminal units, and legacy network bridges requiring stable component supply across extended product lifecycles.
Supply support for MPC870CVR66 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) is a fabless semiconductor company specializing in embedded processing, connectivity, and analog solutions for automotive, industrial, and networking markets.
The MPC870CVR66 belongs to the PowerQUICC™ family - designed specifically for integrated communications processing in space- and power-constrained networking equipment where deterministic real-time I/O, Ethernet bridging, and serial protocol offload are critical.
FAQ
What is the maximum operating junction temperature for the MPC870CVR66?
The MPC870CVR66 has a maximum junction temperature (TJ) of 95 °C under standard operating conditions and 100 °C under extended temperature grade operation. These values are specified in Table 3 of the MPC875/MPC870 Hardware Specifications Rev. 4 document and assume proper thermal design with appropriate board-level heat sinking and airflow. Exceeding these limits may cause permanent degradation or functional failure of the MPC870CVR66.
Does the MPC870CVR66 support USB host functionality?
Yes, the MPC870CVR66 supports USB host controller operation per USB 2.0 full-/low-speed specifications. It can manage control, bulk, interrupt, and isochronous transfers, generate and check CRC16/CRC5, perform NRZI encoding/decoding with bit stuffing, and operate at both 12 Mbps and 1.5 Mbps data rates. The MPC870CVR66 USB host mode is validated in Section 14 of the hardware specification and requires external hub circuitry for low-speed peripheral support.
How does the MPC870CVR66 differ from the MPC875CVR66?
The MPC870CVR66 omits the hardware security engine (AESU/DEU/MDEU), time-slot assigner (TSA), and 10BaseT Ethernet MAC present in the MPC875CVR66. All other features - including the 66-MHz MPC8xx core, 8-Kbyte instruction/data caches, dual 10/100 Mbps FEC, USB 2.0 interface, CPM, and SIU - are identical. This makes the MPC870CVR66 a lower-cost, lower-power option for applications not requiring cryptographic acceleration or TDM bus support.
What power supply sequencing is required for reliable MPC870CVR66 startup?
The MPC870CVR66 requires strict voltage sequencing: VDDL must never exceed VDDH during power-up or power-down, and the difference between VDDL and VDDSYN must remain ≤100 mV. Violation risks forward-biasing internal ESD diodes and causing irreversible damage. A discrete diode-based sequencing circuit (as shown in Figure 4 of the hardware spec) is recommended unless the power supply design inherently guarantees these constraints for the MPC870CVR66.
Is the MPC870CVR66 pin-compatible with newer PowerQUICC™ processors like the MPC885?
No, the MPC870CVR66 is not pin-compatible with the MPC885 series. While both belong to the PowerQUICC™ family and share architectural similarities, the MPC885 uses a 484-pin PBGA package with different pin assignments, additional interfaces (PCI, DDR2), and revised power domains. Migration from MPC870CVR66 to MPC885 requires full PCB redesign, new layout, and firmware adaptation - there is no drop-in replacement path.
MPC870CVR66 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 256-BBGA
- Series:
- MPC8xx
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- MPC8xx
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 66MHz
- Co-Processors/DSP:
- Communications; CPM
- RAM Controllers:
- DRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- 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:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 256-PBGA (23x23)
- Additional Interfaces:
- I2C, PCMCIA, SPI, TDM, UART
MPC870CVR66 FAQ
1.How can I place an order for MPC870CVR66 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPC870CVR66 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 MPC870CVR66 reliable?
The price and inventory of MPC870CVR66 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPC870CVR66 is usually 5 days.
3.What payment methods are accepted for MPC870CVR66?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPC870CVR66 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPC870CVR66?
MPC870CVR66 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPC870CVR66 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 MPC870CVR66?
For technical support, including MPC870CVR66 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPC870CVR66 requirements.
6.How does Aetrix verify that MPC870CVR66 is sourced from the original manufacturer or authorized distributors?
All MPC870CVR66 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 MPC870CVR66 meets industry standards.
7.What is the process for return or replacement of MPC870CVR66?
All MPC870CVR66 units undergo pre-shipment inspection (PSI). If there is an issue with MPC870CVR66, 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 MPC870CVR66 part is unused and in its original packaging.
Return procedure for MPC870CVR66:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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