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NXP Semiconductors PXAH30KFBE,557
- Part No.:
- PXAH30KFBE,557
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
PXAH30KFBE,557.pdf
- Description:
- IC MCU 16BIT ROMLESS 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,540
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Product details
Overview
PXAH30KFBE from NXP Semiconductors (formerly Philips) is a 30 MHz, 100-pin LQFP CMOS 16-bit microcontroller with XA CPU core, supporting up to 6 MB external memory in unified or Harvard mode, eight DMA channels, and four UARTs operating at up to 230.4 kbps - deployed in industrial control and networking systems requiring deterministic real-time I/O handling.
For engineers reviewing the PXAH30KFBE datasheet, PXAH30KFBE pinout, PXAH30KFBE application, or PXAH30KFBE equivalent, this page delivers verified package mapping (SOT407-1), confirmed 100-pin LQFP pin functions, memory controller timing parameters, UART/BRG register layout, and validated alternative microcontrollers for legacy embedded upgrade paths.
Technical Context
The PXAH30KFBE implements a proprietary 16-bit XA (eXtended Architecture) CPU core with 256 bytes on-chip SRAM and SFR/MMR register architecture. Its memory controller supports six programmable chip selects with dynamic bus sizing (8-/16-bit) and individual bus timing per CS, enabling flexible external memory interfacing without glue logic.
It integrates four independent UART peripherals - each with dedicated baud rate generators, interrupt support, and configurable clock inputs (RTClk/TRClk) - alongside two 16-bit timers, watchdog timer, and 32 general-purpose I/O pins mapped across Ports 0–3 with multi-function capability including CS outputs, carrier detect, RTS/CTS, and reset signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit XA (eXtended Architecture) with 30 MHz max clock - enables deterministic real-time execution in industrial PLCs and protocol gateways. |
| External Memory Support | Up to 6 MB total (1 MB per chip select) in unified or Harvard mode - eliminates need for external address latches or memory controllers. |
| UART Interfaces | Four UARTs, each with 230.4 kbps async rate and dedicated BRG - supports simultaneous RS-232/422/485 communication links in multi-protocol devices. |
| DMA Channels | Eight channels (four Rx + four Tx) with FIFO buffering - offloads CPU during high-throughput serial or memory transfers in data concentrators. |
| Package & Pin Count | 100-pin LQFP (SOT407-1), –40°C to +85°C operating range - suitable for industrial PCB layouts with thermal and mechanical reliability requirements. |
| Memory Controller Features | De-multiplexed A[19:0]/D[15:0] bus, WAIT/Size16 boot configuration, BLE/BHE byte enable - simplifies interface to Flash, SRAM, and peripheral ASICs. |
| I/O Capability | 32 programmable GPIO pins across four ports, with UART signal multiplexing (RxD/TxD/RTS/CTS/CD/CLK) - enables compact peripheral integration without external level shifters. |
Pinout & Package
Package: 100-pin Low Profile Quad Flat Package (LQFP), SOT407-1, body size 14 × 14 mm, 0.5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD / VSS | Power supply and ground | Seven VDD and seven VSS pins distributed for low-noise power delivery and EMI reduction across analog/digital domains. |
| A[19:0] | Address bus outputs | 20-bit multiplexed address lines enabling 1 MB per chip select; supports external memory decoding up to 6 MB. |
| D[15:0] | Data bus bidirectional I/O | 16-bit data path with BLE/BHE controls - allows 8-bit or 16-bit peripheral access without bus transceivers. |
| CS0–CS5 | Active-low chip select outputs | Six independent CS signals; CS0 enabled at reset, others software-enabled - enables mixed-memory systems (ROM+RAM+peripherals). |
| UARTx Signals (RxD/TxD/RTS/CTS/CD/BRG) | Serial interface terminals | Four full UART sets with dedicated clock inputs (RTClk/TRClk) - supports synchronous/asynchronous modes and external clock sourcing. |
| P3.2 | Timer0 input / ResetOut output | Configurable dual-function pin; ResetOut asserts low during internal resets (watchdog, RESET instruction) - provides system-level reset signaling without external circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Unified/Harvard memory architecture support | Single memory controller handles both architectures - simplifies firmware porting between code/data separation and shared-space designs. |
| Dynamic bus sizing per chip select | Each CS independently configured for 8-bit or 16-bit data width - accommodates mixed 8-bit peripherals (e.g., legacy UARTs) and 16-bit memories on same bus. |
| Individual bus timing per chip select | Programmable BTRH/BTRL registers per CS - eliminates fixed wait-state penalties and enables optimal timing for diverse memory/peripheral speeds. |
| Four UARTs with dedicated BRGs | Each UART has independent baud rate generator - enables concurrent operation at different rates (e.g., 9600 bps Modbus + 115.2 kbps CAN bridge). |
| 32 GPIO with multi-function mapping | Port pins configurable as UART signals, chip selects, timers, or general I/O via PnCFGA/PnCFGB registers - reduces external logic and board space. |
Applications
| Industrial PLC Communication Module | Protocol Gateway for Fieldbus Networks |
|---|---|
Use Scenario: Aggregating Modbus RTU, Profibus DP, and ASCII-based sensor data in factory-floor edge nodes. IC Role / Device Role / Timing Role: Central MCU managing four concurrent UART links, DMA-driven buffer transfers, and real-time timer-triggered polling cycles. Use Value: Eliminates external UART expanders and glue logic; 6 MB external memory hosts multiple protocol stacks and firmware updates. |
Use Scenario: Bridging RS-485 fieldbus networks (e.g., LonWorks, BACnet MS/TP) to Ethernet/IP or MQTT backhaul. IC Role / Device Role / Timing Role: Protocol translation engine with hardware-assisted UART framing, CRC generation, and packetized DMA transfers. Use Value: Eight DMA channels prevent CPU starvation during bursty fieldbus traffic; de-multiplexed bus interfaces simplify PHY layer design. |
| Networked Power Metering Unit | Legacy Equipment Serial Adapter |
Use Scenario: High-accuracy energy meter with RS-485 telemetry, IR optical port, and local LCD display control. IC Role / Device Role / Timing Role: Real-time data acquisition controller with UART-driven metrology IC interface, timer-synchronized sampling, and watchdog-protected firmware. Use Value: On-chip 256-byte SRAM stores critical calibration data; CS0–CS5 enable separate Flash (code), RAM (data), and metering IC register maps. |
Use Scenario: Retrofitting RS-232/422 legacy industrial equipment with TCP/IP or USB connectivity via serial-to-Ethernet module. IC Role / Device Role / Timing Role: Host processor managing UART-to-TCP socket translation, flow control negotiation, and firmware-over-air updates. Use Value: External ISP Flash support allows field-upgradable firmware; WAIT/Size16 boot configuration ensures compatibility with existing ROM-based bootloaders. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MB90F387 (Fujitsu) | 33 MHz 16-bit FR family MCU with 4-channel UART, 256 KB on-chip Flash, no external memory controller. | Lacks 6 MB external memory support and dynamic bus timing - suited for self-contained applications without external peripherals. | Select when code size fits on-chip Flash and external memory expansion is unnecessary. |
| HD64F3687 (Renesas) | 16-bit H8/300H core, 20 MHz, 4 UARTs, 1 MB max external memory, no unified/Harvard mode flexibility. | Lower memory bandwidth and fixed 8-bit bus - requires external logic for 16-bit peripherals or large memory maps. | Choose for cost-sensitive designs where 1 MB memory ceiling and simpler timing model suffice. |
Compared with MB90F387 and HD64F3687, the PXAH30KFBE uniquely combines 6 MB external memory scalability, per-CS bus timing control, and unified/Harvard architecture support - making it the only option among the three capable of hosting complex protocol stacks with external code/data partitioning.
Availability
PXAH30KFBE is available at Aetrix Electronics and suitable for industrial control systems, protocol gateways, and networked power metering units requiring stable component supply and long-term obsolescence management.
Supply support for PXAH30KFBE 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
NXP Semiconductors (formerly Philips Semiconductors) is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets.
The PXAH30KFBE belongs to the XA (eXtended Architecture) family of 16-bit microcontrollers designed specifically for high-performance real-time embedded applications demanding deterministic I/O, flexible memory expansion, and minimal external component count.
FAQ
What is the maximum external memory capacity supported by the PXAH30KFBE?
The PXAH30KFBE supports up to 6 MB of external memory - achieved through six programmable chip selects, each configurable for up to 1 MB. This capacity applies in both unified (von Neumann) and Harvard memory architectures, with dedicated code and data spaces in Harvard mode. The PXAH30KFBE does not support the 32 MB capability of the XA-H4 variant.
Does the PXAH30KFBE include on-chip Flash or EEPROM memory?
No, the PXAH30KFBE is a ROMless microcontroller - it contains no on-chip non-volatile program memory. It relies entirely on external memory (e.g., Flash or EPROM) accessed via its six chip selects. However, it does integrate 256 bytes of on-chip SRAM for data storage and stack operations, plus SFR and MMR registers for peripheral control.
How many UART interfaces does the PXAH30KFBE provide, and what are their key timing capabilities?
The PXAH30KFBE provides four fully independent UART interfaces, each with dedicated baud rate generators (BRGs) and support for asynchronous data rates up to 230.4 kbps. Each UART accepts separate RTClk and TRClk inputs for precise clock sourcing, and all four share no timing resource contention - enabling simultaneous operation at different baud rates without CPU intervention.
What is the function of the WAIT/Size16 pin on the PXAH30KFBE, and how does it affect boot behavior?
The WAIT/Size16 pin on the PXAH30KFBE serves dual roles: during reset, it configures the boot device bus width ('1' = 16-bit, '0' = 8-bit); during normal operation, it acts as a wait-state input to pause the CPU bus cycle. This pin directly determines whether the initial boot device (e.g., Flash) is accessed as an 8-bit or 16-bit peripheral - a critical setting for correct firmware loading and memory mapping initialization.
Can the PXAH30KFBE's P3.2 pin be used as both a timer input and a system reset output?
Yes, P3.2 on the PXAH30KFBE is a dual-function pin supporting Timer0 input and ResetOut output. When configured as ResetOut (enabled via RSTSRC register bit 7), it drives low during internal resets (e.g., watchdog timeout or RESET instruction execution). Unlike standard GPIO, it asserts a strongly driven low pulse within 258 system clocks after power-up - a behavior documented in the preliminary specification and requiring careful handling in reset-synchronization circuits.
PXAH30KFBE,557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 100-LQFP
- Series:
- XA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- XA
- Core Size:
- 16-Bit
- Speed:
- 30MHz
- Connectivity:
- EBI/EMI, UART/USART
- Peripherals:
- DMA, WDT
- Number of I/O:
- 33
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
PXAH30KFBE,557 FAQ
1.How can I place an order for PXAH30KFBE,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for PXAH30KFBE,557 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 PXAH30KFBE,557 reliable?
The price and inventory of PXAH30KFBE,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PXAH30KFBE,557 is usually 5 days.
3.What payment methods are accepted for PXAH30KFBE,557?
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PXAH30KFBE,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PXAH30KFBE,557 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 PXAH30KFBE,557?
For technical support, including PXAH30KFBE,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PXAH30KFBE,557 requirements.
6.How does Aetrix verify that PXAH30KFBE,557 is sourced from the original manufacturer or authorized distributors?
All PXAH30KFBE,557 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 PXAH30KFBE,557 meets industry standards.
7.What is the process for return or replacement of PXAH30KFBE,557?
All PXAH30KFBE,557 units undergo pre-shipment inspection (PSI). If there is an issue with PXAH30KFBE,557, 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 PXAH30KFBE,557 part is unused and in its original packaging.
Return procedure for PXAH30KFBE,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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