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NXP Semiconductors LPC2129FBD64/01,15
- Part No.:
- LPC2129FBD64/01,15
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC2129FBD64/01,15.pdf
- Description:
- IC MCU 16/32B 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,647
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Product details
Overview
LPC2129FBD64/01 from NXP Semiconductors is a 16/32-bit ARM7TDMI-S microcontroller in LQFP64 package, featuring 256 kB flash, 16 kB SRAM, dual CAN 2.0B interfaces, four-channel 10-bit ADC (2.44 µs conversion), and 46 GPIO pins with nine external interrupt inputs - deployed in automotive control units, industrial PLCs, and medical monitoring systems.
For engineers reviewing the LPC2129FBD64/01 datasheet, LPC2129FBD64/01 pinout, LPC2129FBD64/01 application, or LPC2129FBD64/01 equivalent, this page delivers verified technical context, validated pin functions, confirmed timing and power specs, and real-world use-case mapping for embedded system design and replacement evaluation.
Technical Context
The LPC2129FBD64/01 implements an ARM7TDMI-S core with Thumb instruction set support, enabling 32-bit performance at 60 MHz while reducing code size by >30% in 16-bit mode. Its memory subsystem includes a 128-bit wide flash interface with accelerator, delivering full-speed execution without wait states.
Peripheral integration includes two independent CAN controllers with advanced acceptance filters, a 10-bit ADC with dedicated result registers per channel (LPC2129/01 variant), Fast GPIO registers relocated to the ARM local bus for 3.5× faster pin toggling, and hardware-accelerated UART0/1 with fractional baud rate generation and auto-bauding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S 32-bit RISC processor with Thumb mode support for compact, high-efficiency firmware. |
| Max Clock Speed | 60 MHz via on-chip PLL (100 µs settling time); enables real-time deterministic response in control loops. |
| Flash Memory | 256 kB ISP/IAP flash with 100,000 erase/write cycles and 20-year data retention; supports field firmware updates. |
| SRAM | 16 kB on-chip static RAM accessible as 8/16/32-bit; used for stack, heap, and time-critical variables. |
| ADC | Four-channel 10-bit successive approximation ADC; 2.44 µs conversion time, 0–3 V input range, burst mode support. |
| CAN Interfaces | Two independent CAN 2.0B controllers supporting up to 1 Mbit/s; integrated acceptance filtering for selective message routing. |
| I/O Capability | 46 total GPIO pins (5 V tolerant when configured as digital I/O); nine external interrupt-capable pins (EINT0–EINT3). |
Pinout & Package
Package: LQFP64 (SOT314-2), plastic low-profile quad flat package, 10 × 10 × 1.4 mm body, lead pitch 0.5 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/TXD0/PWM1 | UART0 transmit / PWM output | Primary serial debug interface; configurable as PWM1 for motor or LED control timing. |
| P0[25]/RD1 | CAN1 receiver input | Differential CAN bus input for first controller; requires external transceiver for physical layer. |
| P0[23]/RD2 & P0[24]/TD2 | CAN2 receiver/transmitter | Dedicated pins for second CAN bus; not present on LPC2109, confirmed active on LPC2129/01. |
| P0[27]–P0[30]/AIN0–AIN3 | Analog inputs | Four dedicated 10-bit ADC channels; each connected directly to pin with no internal multiplexer switching delay. |
| P1[26]/RTCK | Returned test clock | JTAG signal for adaptive clock synchronization during variable-frequency debugging sessions. |
| VDD(1V8) & VDDA(1V8) | Core power supplies | Separate 1.8 V domains for digital logic and analog circuitry; isolation minimizes noise coupling into ADC reference. |
Key Features
| Feature | Design Value |
|---|---|
| Fast GPIO Registers | Relocated to ARM local bus for 3.5× faster port pin toggle vs legacy LPC2000; enables precise bit-banged protocols. |
| Dedicated ADC Result Registers | One register per channel reduces interrupt latency and eliminates software polling overhead in real-time sampling. |
| Fractional Baud Rate Generator | Hardware UART0/1 feature enabling exact standard baud rates (e.g., 115200) across wide CPU clock ranges. |
| Embedded Trace Macrocell (ETM) | Non-intrusive real-time instruction trace without halting CPU; essential for complex firmware validation and timing analysis. |
| Dual CAN with Acceptance Filtering | Independent CAN1/CAN2 controllers with programmable 32-bit acceptance masks; supports multi-bus vehicle networks. |
Applications
| Automotive Body Control Module | Industrial CAN Gateway |
|---|---|
Use Scenario: Centralized control of door locks, lighting, and window actuators using CAN bus communication with multiple ECUs. IC Role / Device Role / Timing Role: Main MCU executing real-time state machines, managing dual CAN traffic, and driving PWM-controlled loads. Use Value: 256 kB flash stores full diagnostic stack and firmware update image; dual CAN controllers eliminate need for external bridge ICs. |
Use Scenario: Protocol translation between CAN-based sensor networks and RS-485 or Ethernet backhaul in factory automation. IC Role / Device Role / Timing Role: Embedded protocol converter with deterministic packet forwarding and timestamped event logging. Use Value: 60 MHz ARM7TDMI-S core handles concurrent CAN Rx/Tx buffering and serial interface framing without jitter. |
| Medical Patient Monitor Interface | Power Quality Analyzer Front-End |
Use Scenario: Acquisition and preprocessing of ECG, SpO₂, and respiration signals before transmission to host system. IC Role / Device Role / Timing Role: Real-time ADC controller with burst-mode sampling, interrupt-driven data packaging, and CAN-based telemetry. Use Value: Dedicated ADC result registers ensure sub-µs latency between conversion completion and DMA-ready flag assertion. |
Use Scenario: High-accuracy voltage/current sampling synchronized to zero-crossing detection in grid-tied inverters. IC Role / Device Role / Timing Role: Precision timing engine using Timer0 capture inputs and 10-bit ADC with 2.44 µs conversion for cycle-by-cycle analysis. Use Value: Four independent ADC channels enable simultaneous sampling of phase voltages and currents without multiplexer-induced skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit ARM microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2119FBD64/01 | 128 kB flash, 16 kB SRAM, dual CAN - identical pinout and peripheral set but reduced program storage. | Suitable for firmware with smaller footprint; lacks space for full bootloader + application + OTA update partitioning. | Select when application binary fits within 128 kB and no future expansion is required. |
| LPC2148FBD64 | 512 kB flash, 96 kB SRAM, USB 2.0 device, enhanced ADC (8 ch), same ARM7TDMI-S core and LQFP64 package. | Enables USB-based configuration and diagnostics; higher memory supports larger RTOS or protocol stacks. | Choose when USB connectivity or expanded memory headroom is mandatory; not drop-in due to USB pin allocation differences. |
Compared with LPC2129FBD64/01, the LPC2119FBD64/01 offers identical peripherals and timing but less flash for cost-sensitive deployments, while the LPC2148FBD64 adds USB and memory at the expense of different peripheral pin mappings and higher BOM cost.
Availability
LPC2129FBD64/01 is available at Aetrix Electronics and suitable for automotive control modules, industrial CAN gateways, and medical monitoring devices requiring stable component supply over extended production lifecycles.
Supply support for LPC2129FBD64/01 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 is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The LPC21xx family was designed for cost-sensitive, real-time embedded applications demanding high peripheral integration, low power, and robust CAN communication - targeting automotive body electronics and industrial control.
FAQ
What is the maximum operating frequency of the LPC2129FBD64/01?
The LPC2129FBD64/01 achieves a maximum CPU clock of 60 MHz using its on-chip PLL with 100 µs settling time. This frequency is sustained across the full −40 °C to +85 °C industrial temperature range and enables deterministic execution of real-time control algorithms without wait states, thanks to the 128-bit wide flash interface and accelerator architecture.
Does the LPC2129FBD64/01 support In-System Programming (ISP)?
Yes, the LPC2129FBD64/01 supports full In-System Programming via UART0 using the on-chip bootloader. Flash programming occurs at 1 ms per 512-byte line, and sector or full-chip erase takes 400 ms. The bootloader also implements Diversified Code Read Protection (CRP) levels to prevent unauthorized access to firmware.
How many CAN interfaces does the LPC2129FBD64/01 include, and what version do they support?
The LPC2129FBD64/01 integrates two independent CAN 2.0B controllers, both supporting full CAN 2.0B specification including extended frame format (29-bit identifiers) and bit rates up to 1 Mbit/s. Each controller has dedicated acceptance filtering logic, and pins RD1/TD1 and RD2/TD2 are physically routed on the LQFP64 package for separate bus connections.
What are the ADC capabilities of the LPC2129FBD64/01?
The LPC2129FBD64/01 features a four-channel 10-bit successive approximation ADC with a minimum conversion time of 2.44 µs, 0–3 V input range, and burst mode operation. Each channel has a dedicated result register to minimize interrupt latency, and all ADC input pins (AIN0–AIN3) are directly connected with no internal mux switching delay.
Is the LPC2129FBD64/01 pin-compatible with other members of the LPC21xx family?
The LPC2129FBD64/01 shares identical LQFP64 pinout and peripheral mapping with LPC2109FBD64/01 and LPC2119FBD64/01, including Fast GPIO, dual CAN, and ADC pin assignments. However, flash size (256 kB), SRAM (16 kB), and enabled peripherals (e.g., SSP availability) differ - requiring firmware and layout verification for direct substitution.
LPC2129FBD64/01,15 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- LPC2100
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- ARM7®
- Core Size:
- 16/32-Bit
- Speed:
- 60MHz
- Connectivity:
- CANbus, I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 46
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2129FBD64/01,15 FAQ
1.How can I place an order for LPC2129FBD64/01,15 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2129FBD64/01,15 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 LPC2129FBD64/01,15 reliable?
The price and inventory of LPC2129FBD64/01,15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2129FBD64/01,15 is usually 5 days.
3.What payment methods are accepted for LPC2129FBD64/01,15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2129FBD64/01,15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2129FBD64/01,15?
LPC2129FBD64/01,15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2129FBD64/01,15 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 LPC2129FBD64/01,15?
For technical support, including LPC2129FBD64/01,15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2129FBD64/01,15 requirements.
6.How does Aetrix verify that LPC2129FBD64/01,15 is sourced from the original manufacturer or authorized distributors?
All LPC2129FBD64/01,15 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 LPC2129FBD64/01,15 meets industry standards.
7.What is the process for return or replacement of LPC2129FBD64/01,15?
All LPC2129FBD64/01,15 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2129FBD64/01,15, 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 LPC2129FBD64/01,15 part is unused and in its original packaging.
Return procedure for LPC2129FBD64/01,15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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