MPC870ZT80 - PowerQUICC MPC870 80MHz MPU | NXP | Embedded
MPN： MPC870ZT80 ✗ 停產MPC870ZT80 概覽
A microprocessor (MPU) is an integrated circuit that fetches, decodes, and executes instructions from external memory. The MPC870 belongs to the PowerQUICC family, which historically sits at the intersection of microprocessor (MPU) and microcontroller (MCU) architectures. Its taxonomy is: microprocessor -> 32-bit embedded processor -> PowerPC core -> communications processor (PowerQUICC) -> semiconductor IC. PowerQUICC parts are widely recognized for integrating a CPU with optimized communication engines, reducing system BOM in routing, switching, and industrial control.
Key features include an 80 MHz core clock, PowerPC instruction set support, integrated serial communications peripherals, a flexible memory controller, and a wide operating temperature range suitable for industrial environments. The device uses a low-voltage CMOS process and supports both little-endian and big-endian byte ordering. Integrated peripherals reduce the need for external logic, allowing compact PCB designs.
The architecture combines a PowerPC integer unit with dedicated communication peripherals, dual UART channels, and a flexible system bus interface. This eliminates the need for a separate companion communications controller, simplifying board design and reducing overall power consumption compared with a CPU-plus-discrete-ASIC approach.
Typical applications include industrial Ethernet routers, telecom edge devices, low-end protocol converters, factory automation controllers, and embedded serial communications gateways. Its combination of deterministic interrupt response and an 80 MHz clock rate enables real-time protocol handling without an external RTOS in many designs.
When designing with this device, verify signal integrity on the external memory bus and provide adequate decoupling near the supply pins. The BGA package requires X-ray inspection after reflow, and a 4-layer PCB with a continuous ground plane is recommended for EMI control.
This page synthesizes distributor pricing, drop-in alternatives, lifecycle status, and practical design considerations that go beyond what is found on the manufacturer datasheet alone.
直接替換替代品，適用於 MPC870ZT80 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MPC870ZT80 （相同外形與佔位） — 差異在於 Core Architecture, Manufacturer, Operating Temperature, Series, Supply Voltage.
MPC875ZT80
✅ 直接替換聯絡詢價
查看資料表 →MPC870VT80
✅ 直接替換📋 參考替代品（不在目錄中）
MPC870CZT80
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MPC860TZP80
✅ 直接替換📋 參考替代品（不在目錄中）
MPC850DSLZQ66BUR
✅ 直接替換📋 參考替代品（不在目錄中）
MPC870ZT80 最大額定值與電氣特性
| Manufacturer | NXP Semiconductors (formerly Freescale) |
| Series | PowerQUICC (PQ I HIP6W DUET) |
| Core Architecture | PowerPC 32-bit |
| Core Clock Speed | 80 MHz |
| 工作溫度 | -40C to +85C (industrial) |
| Package Type | BGA (surface mount) |
| 安裝類型 | Surface Mount |
| 記憶體類型 | External memory controller (SRAM/DRAM/Flash) |
| Communication Interfaces | UART, SPI, parallel system bus |
| Instruction Set | PowerPC |
| Endianness | Big-endian and little-endian support |
| Process Technology | CMOS |
| 生命週期狀態 | Obsolete - last time buy on legacy stock |
MPC870ZT80 bga (surface mount) 腳位配置指南
MPC870ZT80（bga (surface mount) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MPC870ZT80.
請參閱 資料表 以查看完整腳位配置。
典型應用
MPC870ZT80 適用於 6 應用s: Industrial Ethernet Router, Telecom Edge Device Controller, Factory Automation Controller, Serial Communications Gateway, Low-End Protocol Converter, Embedded Remote Telemetry Unit (RTU).
Industrial Ethernet Router
The MPC870ZT80's 80 MHz PowerPC core and integrated UART/SPI peripherals make it a fit for low-port-count industrial Ethernet routers and protocol bridges. The PowerPC integer unit executes TCP/IP forwarding at wire speed for sub-100 Mbps links without requiring an external RTOS, while the integrated peripherals handle RS-485 to Ethernet bridging. Compared with a discrete CPU+ASIC solution, the MPC870ZT80 reduces BOM and PCB area by 30-40%. For industrial deployments, the -40C to +85C operating range tolerates cabinet and outdoor-enclosure environments. Recommended companion parts: PHY transceiver (e.g., NXP DP83848) and external SRAM/Flash.
推薦
Telecom Edge Device Controller
In telecom edge equipment such as DSLAM line cards, voice-over-IP gateways, and remote terminal units, the MPC870ZT80 handles call-control signaling and serial port management. The 80 MHz core is sufficient for G.711/G.729 codec control and H.248 signaling, while the flexible memory controller supports external SDRAM for call-state buffering. Deterministic interrupt latency on the PowerPC core is well-suited to TDM bus interfaces. Pin compatibility with other PowerQUICC members enables migration to higher-clock MPC875ZT80 variants when more headroom is needed.
推薦
Factory Automation Controller
The MPC870ZT80 serves as the central controller in PLC-style factory automation nodes, where its 80 MHz PowerPC core runs ladder-logic or soft-PLC firmware in real time. Integrated UART channels support Modbus RTU master/slave slave access to motor drives and sensors, while SPI interfaces connect to high-speed ADC/DAC peripherals for closed-loop motion control. The industrial -40C to +85C operating range and CMOS process technology support long-term reliability on the factory floor. Compared with ARM Cortex-M alternatives, the MPC870 offers more deterministic interrupt behavior at the cost of higher power consumption.
推薦
Serial Communications Gateway
The MPC870ZT80's multiple integrated UART channels and flexible system bus make it ideal for multi-protocol serial gateways that bridge RS-232, RS-485, and Ethernet networks. The PowerPC core runs protocol-conversion firmware with deterministic latency, supporting Modbus, DNP3, and IEC 60870-5-101/104 stacks. At 80 MHz, the part handles 4-8 serial ports at full baud rate while encoding/decoding packets on the fly. The BGA package and external memory controller simplify adding Flash for protocol stack storage and SRAM for packet buffering.
推薦
Low-End Protocol Converter
Used as a building block in protocol-converter modules, the MPC870ZT80 translates between legacy industrial fieldbus (Profibus, DeviceNet, CANopen) and modern Ethernet/IP protocols. The PowerPC core executes fieldbus stack libraries, while the integrated UART/SPI peripherals interface to transceiver ASICs. The 80 MHz clock rate provides sufficient headroom for stack processing at 1 ms cycle times. Engineers choosing this part benefit from NXP's reference firmware and the mature PowerPC toolchain including GNU gcc and CodeWarrior.
推薦
Embedded Remote Telemetry Unit (RTU)
In SCADA remote telemetry units for utilities and pipeline monitoring, the MPC870ZT80 aggregates data from multiple field sensors over serial links and forwards to central SCADA hosts. The 80 MHz PowerPC core is well-suited to running DNP3 and IEC 60870-5-104 stacks, while the flexible memory controller supports battery-backed SRAM for outage-tolerant data storage. The -40C to +85C industrial temperature range tolerates outdoor cabinet environments without active cooling. Recommended companions: industrial temperature sensor, isolated RS-485 transceiver, and low-power RTC.
推薦
推薦產品摘要
工程參考資料，適用於 MPC870ZT80 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MPC875ZT80 | MPC870VT80 | MPC870CZT80 | MPC860TZP80 | MPC850DSLZQ66BUR |
|---|---|---|---|---|---|---|
| Package | BGA | BGA - same | BGA - same | BGA - same | BGA - same family | BGA - same family |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | PowerPC 32-bit | PowerPC 32-bit | PowerPC 32-bit | PowerPC 32-bit | PowerPC 32-bit | PowerPC 32-bit |
| Core Clock Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 66 MHz (-17.5%) |
| Operating Temperature | -40C to +85C | -40C to +85C | 0C to +70C (commercial) | -40C to +85C | -40C to +85C | -40C to +85C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Communication Interfaces | UART, SPI, system bus | UART, SPI, wider system bus | UART, SPI, system bus | UART, SPI, system bus | UART, SPI, system bus | UART, SPI, system bus (reduced) |
| Endianness | Big and little-endian | Big and little-endian | Big and little-endian | Big and little-endian | Big and little-endian | Big and little-endian |
主要差異化特點
- Lowest-cost member of the MPC870 family with industrial temperature grade (對比MPC875ZT80)
- Industrial temperature grade (-40C to +85C) versus commercial variant (對比MPC870VT80)
- 80 MHz clock rate with PowerPC architecture for deterministic real-time (對比MPC850DSLZQ66BUR)
設計說明
The MPC870ZT80 uses a BGA package requiring 4-layer PCB construction with a continuous ground plane beneath the device. Per IPC-2221 and IPC-7351, route signal traces on inner layers with the BGA fan-out using microvias or via-in-pad. Maintain a 0.2mm via-to-pad pitch, controlled-impedance routing for the external memory bus (typically 50 ohm single-ended), and 50 ohm differential for Ethernet MII if used. Place decoupling capacitors (100nF + 10uF) within 2mm of each BGA supply ball. X-ray inspection after reflow is mandatory per IPC-7095 to verify solder joint integrity.
Estimated: At maximum core activity and 3.3V core supply, the MPC870ZT80 dissipates approximately 1.5-2.0W. The BGA package typically has theta_JC of 5 C/W and theta_JA of 25 C/W with a 4-layer PCB. Junction temperature rise above ambient is therefore ~37-50 C at full load, leaving comfortable margin below the 125C junction limit at 85C ambient. For sealed enclosures without airflow, consider a 1 oz copper pour under the BGA thermal pad (if present) and ensure the PCB has thermal vias to inner ground planes for heat spreading.
Do not confuse the MPC870ZT80 (80 MHz PowerQUICC) with the MPC860 family, which has different peripheral mapping and BGA pin assignments despite the similar part-number prefix. Power-on reset must hold for at least 100 stable clock cycles after the 3.3V rail reaches regulation per the NXP hardware specifications. JTAG TRST must be pulled low for proper boundary-scan operation. For new production, request a counterfeit-avoidance inspection (decapsulation, X-ray, electrical test) from authorized distributors like Rochester Electronics, since the part is obsolete and broker channels carry elevated counterfeit risk per IPC-A-610 and AS6081.
The external memory bus operates at half the core clock (40 MHz at 80 MHz core) and requires source-termination or series-resistor damping on heavily-loaded address and control lines. Maintain matched trace lengths within +/- 2mm for the data byte lanes (D0-D7, D8-D15, etc.) to preserve setup/hold margins. Use a 4-layer stack-up with the second layer as a continuous ground plane and the third layer for power; this provides reference planes for the memory bus signals and minimizes crosstalk. For SDRAM interfaces, place a ground guard trace between clock and address lines.
合規資訊
Compliance status not available in current manufacturer documentation because the device is obsolete. Request compliance certificates from Rochester Electronics at the time of order. AEC-Q100 not applicable - this is an industrial MPU, not an automotive-qualified part.
