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NXP Semiconductors PXAG30KBA,529
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- Part No.:
- PXAG30KBA,529
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
PXAG30KBA,529.pdf
- Description:
- IC MCU 16BIT ROMLESS 44PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:4,007
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Product details
Overview
PXAG30KBA,529 from NXP Semiconductors (formerly Philips Semiconductors) is a 16-bit XA architecture microcontroller with 512 B on-chip RAM, integrated watchdog timer, and dual enhanced UARTs. It operates from 2.7 V to 5.5 V, supports 20-bit addressing (1 MB program/data space), and targets industrial control and legacy 80C51 migration applications requiring higher performance and C-language support.
For engineers reviewing the PXAG30KBA,529 datasheet, PXAG30KBA,529 pinout, PXAG30KBA,529 application, or PXAG30KBA,529 equivalent, this page delivers verified package mapping (PLCC44), confirmed 3× 16-bit timers (T0/T1/T2), UART interrupt handling, external bus interface capability, and real-world use cases in serial communication gateways and embedded instrumentation.
Technical Context
The PXAG30KBA,529 implements the XA extended architecture - a 16-bit fully static CPU with 24-bit address range support (configured to 20-bit in this variant), eight general-purpose 16-bit registers, and an instruction set optimized for high-level language compilation and multi-tasking. Its core provides 10–100× speedup over 80C51 while maintaining upward binary compatibility for translated firmware.
It integrates three independent 16-bit timers (T0, T1, T2), where T2 supports capture, auto-reload up/down counting, and baud rate generation; two UARTs with 9-bit mode, multiprocessor addressing, and break detection; and programmable I/O port configurations (quasi-bidirectional, push-pull, open-drain, input-only) across four 8-bit ports. The watchdog timer uses a dedicated WDCON register with prescaler selection and overflow flag.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit XA CPU with 20-bit address bus (1 MB program/data space); upward-compatible with 80C51 instruction set and memory model. |
| RAM | 512 bytes on-chip static RAM; used for stack, variables, and data buffers without external memory dependency. |
| Timers/Counters | Three 16-bit timers: T0/T1 (80C51-compatible modes + enhanced Mode 0), T2 (capture, auto-reload up/down, baud rate generation). |
| Serial Interfaces | Two UARTs with independent control/status registers (S0CON/S1CON), 9-bit addressing, automatic address recognition, and error flags (FE, OE, BR). |
| Operating Voltage | 2.7 V to 5.5 V supply range; enables direct interfacing with both 3.3 V and 5 V peripheral logic without level shifters. |
| I/O Ports | Four 8-bit ports (P0–P3), each pin individually configurable for quasi-bidirectional, push-pull, open-drain, or input-only operation. |
| Watchdog | Dedicated watchdog timer with programmable prescaler (WDCON bits PRE2:PRE0), reset-on-timeout, and feed sequence (WFEED1/WFEED2). |
Pinout & Package
Package: PLCC44 (plastic leaded chip carrier, 44 leads, SOT187-2). Pin assignments validated per official Philips Semiconductors XA-G30 product data sheet (2002 Mar 25).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 22 | VSS | Ground reference for digital and analog circuitry; requires low-impedance connection to system common. |
| 23, 44 | VDD | Main power supply (2.7–5.5 V); decoupling capacitor required at each VDD pin per layout guidelines. |
| 10 | RST | Active-low reset input; initiates hardware reset, clears SFRs, and forces execution from reset vector address. |
| 20, 21 | XTAL1 / XTAL2 | Crystal oscillator inputs; supports external crystal (1–20 MHz) or external clock source on XTAL1. |
| 11, 13 | P3.0/RxD0 / P3.1/TxD0 | UART0 receive/transmit pins; support full-duplex asynchronous serial communication at programmable baud rates. |
| 6, 7 | P1.4/RxD1 / P1.5/TxD1 | UART1 receive/transmit pins; enable dual-serial-channel systems such as modem bridges or protocol translators. |
| 16–19 | P3.4/T0 – P3.7/RD | Timer 0 input, Timer 1 input, write strobe (WRL), read strobe (RD); essential for external memory bus expansion (8/16-bit mode). |
| 32, 33, 35 | PSEN / ALE/PROG / EA/WAIT | External program memory enable, address latch enable, and external access control; required for booting from external ROM or flash. |
Key Features
| Feature | Design Value |
|---|---|
| Upward 80C51 compatibility | Enables reuse of existing 80C51 assembly/C code with minimal translation; reduces firmware development time for legacy upgrades. |
| Programmable I/O port configuration | Each port pin independently set to quasi-bidirectional, push-pull, open-drain, or input-only - eliminates need for external pull-ups or buffer ICs. |
| Timer 2 capture & auto-reload | Supports precise pulse-width measurement (capture) and deterministic waveform generation (up/down auto-reload), critical for motor control timing. |
| Dual UART with multiprocessor mode | Enables daisy-chained serial networks using address byte recognition - reduces wiring complexity in distributed sensor systems. |
| Wide voltage operation (2.7–5.5 V) | Permits single-supply operation across mixed-voltage designs and simplifies power architecture in battery-backed or industrial environments. |
| Watchdog with feed sequence protection | Requires two consecutive writes to WFEED1/WFEED2 to reset watchdog counter - prevents accidental or software-glitch-induced resets. |
Applications
| Industrial Serial Gateway | Legacy 80C51 System Upgrade |
|---|---|
Use Scenario: Protocol translation between Modbus RTU field devices and Ethernet-based SCADA systems via RS-485 interfaces. IC Role / Device Role / Timing Role: Primary controller managing dual UARTs (one for RS-485, one for internal debug/bridge), external memory-mapped peripherals, and real-time interrupt-driven packet parsing. Use Value: 20-bit addressing allows direct access to large configuration tables in external Flash; dual UARTs eliminate need for external UART expanders. |
Use Scenario: Replacement of aging 80C51-based HVAC controller with enhanced processing headroom and C-language maintainability. IC Role / Device Role / Timing Role: Drop-in architectural upgrade executing recompiled firmware while retaining identical pinout and peripheral register mapping for P0–P3 and SFRs. Use Value: 10× faster instruction throughput enables real-time PID loop execution at 1 kHz without sacrificing interrupt latency. |
| Embedded Instrumentation Front-End | Low-Power Data Logger |
Use Scenario: Signal acquisition module with analog front-end ADC interface, local display, and USB-to-serial bridge via UART0. IC Role / Device Role / Timing Role: Central sequencer coordinating ADC sampling (via T0-triggered interrupts), UART0 data streaming, and LCD refresh using Timer 2 PWM output. Use Value: Programmable port configurations allow direct drive of LCD segments without external drivers; T2 PWM provides stable backlight dimming. |
Use Scenario: Battery-powered environmental sensor node logging temperature/humidity every 10 seconds to SPI Flash. IC Role / Device Role / Timing Role: Low-power supervisor managing sleep/wake cycles via watchdog timeout, external interrupt wake-up (INT0/INT1), and periodic UART transmission. Use Value: 2.7 V minimum operating voltage extends battery life; idle/power-down modes reduce current to <100 µA with RTC-free wake-up capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 80C51FA | 8-bit 80C51 derivative with 1 kB RAM, no T2, single UART, 16-bit addressing only. | Limited to simpler control tasks; cannot support dual-serial or 1 MB memory maps. | Select when cost sensitivity outweighs performance needs and legacy 80C51 code must run unmodified. |
| XA-G32 | Same XA family, but with 2 kB RAM, on-chip 32 kB ROM, and extended interrupt priority levels (5 priority groups vs. 3). | Better suited for complex real-time OS integration and larger firmware images. | Select when additional on-chip memory and advanced interrupt nesting are required for multitasking. |
Compared with 80C51FA and XA-G32, the PXAG30KBA,529 uniquely balances 16-bit performance, dual UARTs, and 20-bit addressing within a PLCC44 footprint - making it optimal for industrial serial gateways where external memory expansion and protocol co-processing are mandatory.
Availability
PXAG30KBA,529 is available at Aetrix Electronics and suitable for industrial automation, legacy system modernization, and embedded instrumentation requiring stable component supply, long-term lifecycle support, and verified PLCC44 packaging.
Supply support for PXAG30KBA,529 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 (originally Philips Semiconductors) is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications.
The XA-G30 belongs to the XA 16-bit microcontroller family, designed specifically to provide a high-performance, upward-compatible migration path from 80C51-based systems while enabling efficient C-language development and real-time multitasking.
FAQ
What is the maximum operating frequency supported by PXAG30KBA,529?
The PXAG30KBA,529 supports external crystal frequencies up to 20 MHz, yielding a maximum internal instruction cycle rate of 5 MHz (Osc/4). AC electrical characteristics in the official datasheet confirm stable operation across the full 2.7–5.5 V range at this frequency, with timing margins validated for all timers, UARTs, and external bus cycles.
Does PXAG30KBA,529 include on-chip program memory?
No, PXAG30KBA,529 does not contain on-chip program memory. As stated in the EA/WAIT pin description, EA must be held LOW to force external program memory access - confirming that the device relies entirely on external ROM or Flash for code storage. This design enables flexible memory sizing and field-upgradable firmware.
How is the external data bus width configured on PXAG30KBA,529?
The external data bus width (8-bit or 16-bit) is determined at reset by the logic level on the P3.5/BUSW pin. When BUSW is sampled low during reset release, the XA-G30 configures for 8-bit external data bus operation; when high, it selects 16-bit mode. This setting is latched into the Bus Configuration Register (BCR) and affects address/data multiplexing on Port 0 and Port 2.
Can PXAG30KBA,529 operate from a 3.3 V supply?
Yes, PXAG30KBA,529 is fully specified for 2.7 V to 5.5 V operation. At 3.3 V, all DC and AC electrical characteristics - including I/O voltage levels, timer accuracy, UART baud rate tolerance, and watchdog timing - remain within datasheet limits. No level-shifting is required for interfacing with standard 3.3 V peripherals.
What UART features differentiate PXAG30KBA,529 from standard 80C51 UARTs?
PXAG30KBA,529 UARTs support 9-bit mode with automatic address recognition, multiprocessor communication, break detection, and independent status flags (FE, OE, BR) per channel. Unlike basic 80C51 UARTs, they include dedicated extended status registers (S0STAT/S1STAT) and address-enable logic (S0ADEN/S1ADEN), enabling robust daisy-chained serial networks without host polling overhead.
PXAG30KBA,529 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 44-LCC (J-Lead)
- Series:
- XA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- XA
- Core Size:
- 16-Bit
- Speed:
- 30MHz
- Connectivity:
- UART/USART
- Peripherals:
- PWM, WDT
- Number of I/O:
- 32
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- External
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
PXAG30KBA,529 FAQ
1.How can I place an order for PXAG30KBA,529 through Aetrix?
Please submit a Request for Quotation (RFQ) for PXAG30KBA,529 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 PXAG30KBA,529 reliable?
The price and inventory of PXAG30KBA,529 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PXAG30KBA,529 is usually 5 days.
3.What payment methods are accepted for PXAG30KBA,529?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PXAG30KBA,529 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PXAG30KBA,529?
PXAG30KBA,529 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PXAG30KBA,529 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 PXAG30KBA,529?
For technical support, including PXAG30KBA,529 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PXAG30KBA,529 requirements.
6.How does Aetrix verify that PXAG30KBA,529 is sourced from the original manufacturer or authorized distributors?
All PXAG30KBA,529 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 PXAG30KBA,529 meets industry standards.
7.What is the process for return or replacement of PXAG30KBA,529?
All PXAG30KBA,529 units undergo pre-shipment inspection (PSI). If there is an issue with PXAG30KBA,529, 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 PXAG30KBA,529 part is unused and in its original packaging.
Return procedure for PXAG30KBA,529:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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