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NXP Semiconductors LPC2129FBD64,151
- Part No.:
- LPC2129FBD64,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC2129FBD64,151.pdf
- Description:
- IC MCU 16/32B 256KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,026
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Product details
Overview
LPC2129FBD64,151 from NXP Semiconductors is a 32-bit ARM7TDMI-S microcontroller in LQFP64 package, featuring 256 kB flash, 16 kB SRAM, dual CAN interfaces, four-channel 10-bit ADC (2.44 µs conversion), and 46 GPIO pins with nine external interrupt inputs - deployed in automotive control units and industrial CAN-based monitoring systems.
For engineers reviewing the LPC2129FBD64,151 datasheet, LPC2129FBD64,151 pinout, LPC2129FBD64,151 application, or LPC2129FBD64,151 equivalent, key selection criteria include dual-CAN timing compliance, 60 MHz CPU clock stability under 1.8 V core supply, Fast GPIO toggle performance, and I/O voltage tolerance (3.3 V pads, 5 V tolerant digital pins).
Technical Context
The LPC2129FBD64,151 implements ARM7TDMI-S with Thumb instruction set for code density optimization and real-time emulation via EmbeddedICE-RT and non-intrusive tracing via ETM. Its memory subsystem uses a 128-bit wide interface with accelerator to sustain 60 MHz operation from on-chip PLL (100 µs settling time).
Peripheral integration includes two independent CAN controllers with advanced acceptance filters, buffered SSP supporting SPI/SSI/Microwire, dual UARTs with fractional baud rate generators and hardware flow control, and a vectored interrupt controller supporting configurable priorities across 32 IRQ sources including timer match/capture, ADC completion, and external edge/level interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S 32-bit RISC processor with Thumb mode support for 30 % smaller code size at minimal performance loss. |
| Flash Memory | 256 kB on-chip ISP/IAP flash with 100,000 erase/write cycles and 20-year data retention; supports in-application programming. |
| SRAM | 16 kB on-chip static RAM accessible as 8/16/32-bit; used for critical variables, stack, and real-time buffers. |
| CAN Interfaces | Two independent CAN 2.0B-compliant controllers supporting up to 1 Mbit/s data rate and programmable acceptance filtering. |
| ADC | Four-channel 10-bit successive approximation ADC with 2.44 µs conversion time and dedicated result registers per channel. |
| GPIO | 46 total I/O pins (5 V tolerant in digital mode); nine support external interrupts; Fast GPIO registers enable 3.5× faster pin toggling vs legacy LPC2000. |
| Operating Voltage | Dual supply: 1.65–1.95 V (1.8 V ±0.15 V) for core; 3.0–3.6 V (3.3 V ±10 %) for I/O with 5 V tolerant pads. |
Pinout & Package
LPC2129FBD64,151 is housed in a plastic low-profile quad flat package (LQFP64), 10 × 10 × 1.4 mm (SOT314-2), with 64 leads and exposed thermal pad (not electrically connected). Pin functions are configured via the Pin Connect Block; all GPIO pins default to input after reset.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/TXD0/PWM1 | UART0 transmit / PWM output | Primary serial debug interface; PWM1 supports motor control or LED dimming without CPU overhead. |
| P0[25]/RD1 | CAN1 receiver input | Differential input for CAN bus 1; requires external transceiver and termination for physical layer compliance. |
| P0[23]/RD2 & P0[24]/TD2 | CAN2 receiver/transmitter | Second CAN channel dedicated pins; not available on LPC2109, enabling redundant or multi-bus automotive networks. |
| P0[27]–P0[30]/AIN0–AIN3 | Analog inputs | Four dedicated 10-bit ADC channels with direct analog routing; each supports burst mode and external trigger. |
| P1[26]/RTCK | Returned test clock | JTAG extension pin enabling adaptive debugger synchronization during variable-frequency CPU operation. |
| VDD(1V8), VDDA(1V8) | Core/analog power | Separate 1.8 V supplies reduce noise coupling between digital logic and ADC/PLL circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Fast GPIO registers | Relocated to ARM local bus enabling 3.5× faster port pin toggle vs legacy LPC2000; critical for bit-banged protocols or real-time signal generation. |
| Dedicated ADC result registers | One register per channel reduces interrupt latency and eliminates software read-modify-write overhead during high-speed sampling. |
| Fractional baud rate generator | Enables precise UART0/1 bit rates across wide crystal frequencies (1–30 MHz), eliminating external clock trimming components. |
| Embedded Trace Macrocell (ETM) | Non-intrusive real-time instruction trace at full CPU speed; essential for debugging deterministic timing in safety-critical firmware. |
| Diversified Code Read Protection (CRP) | Three security levels disable JTAG/ISP access to flash and RAM while preserving ability to erase flash via ISP command. |
Applications
| Automotive Body Control Module | Industrial CAN Gateway |
|---|---|
Use Scenario: Centralized control of door locks, lighting, and window actuators using distributed CAN nodes. IC Role / Device Role / Timing Role: Main MCU executing CAN message arbitration, PWM-driven actuator control, and fault logging with RTC timestamping. Use Value: Dual CAN controllers handle separate chassis and powertrain buses; 256 kB flash stores multiple firmware variants and diagnostic logs. |
Use Scenario: Protocol translation between CANopen field devices and Modbus TCP backbone network. IC Role / Device Role / Timing Role: Real-time bridge managing concurrent CAN frame reception, buffer management, and Ethernet packet assembly. Use Value: 60 MHz CPU + Fast GPIO enables deterministic CAN frame processing at 500 kbit/s; 16 kB SRAM accommodates dual protocol stacks. |
| Medical Sensor Hub | Fault-Tolerant Maintenance Bus |
Use Scenario: Aggregation and preprocessing of analog sensor data (ECG, SpO₂) before transmission to host system. IC Role / Device Role / Timing Role: ADC acquisition controller with burst-mode sampling, digital filtering, and CRC-protected UART reporting. Use Value: Four-channel 10-bit ADC achieves 400 kSPS aggregate throughput; 5 V tolerant I/O simplifies connection to legacy sensor modules. |
Use Scenario: Redundant communication node in railway signaling or HVAC plant control where failure must not disrupt bus integrity. IC Role / Device Role / Timing Role: Watchdog-monitored CAN node with automatic failover between primary/backup buses and self-diagnostic boot sequence. Use Value: Vectored Interrupt Controller prioritizes CAN error frames and watchdog timeouts; Power-down mode extends battery life during idle periods. |
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 cost-sensitive designs with smaller firmware footprints and no need for field-upgradable feature sets. | Select when application binary fits within 128 kB and long-term firmware expansion is not required. |
| LPC2220FBD144 | 144-pin LQFP, 256 kB flash, 16 kB SRAM, dual CAN, but adds 8-channel 10-bit ADC and external memory interface. | Required for designs needing higher I/O count, external SDRAM/NOR flash, or additional analog inputs beyond four channels. | Choose only if pin count, memory bandwidth, or ADC channel count exceed LPC2129FBD64,151 capabilities. |
Compared with LPC2129FBD64,151, the LPC2119FBD64/01 offers identical real-time performance and dual-CAN functionality at lower flash capacity, while the LPC2220FBD144 trades compact LQFP64 packaging for expanded I/O and memory interface - making LPC2129FBD64,151 optimal for space-constrained dual-CAN embedded nodes requiring maximum on-chip code density.
Availability
LPC2129FBD64,151 is available at Aetrix Electronics and suitable for automotive body control, industrial CAN gateways, and medical sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for LPC2129FBD64,151 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in ARM-based microcontrollers and automotive networking IP.
The LPC21xx family was designed for cost-effective, real-time embedded control in resource-constrained environments - emphasizing dual-CAN robustness, low-power operation, and debug-rich toolchain support for safety-critical firmware development.
FAQ
What is the maximum operating frequency of the LPC2129FBD64,151?
The LPC2129FBD64,151 achieves a maximum CPU clock of 60 MHz using its on-chip PLL with 100 µs settling time. This frequency is sustained by the 128-bit wide flash interface and accelerator architecture, enabling full-speed 32-bit instruction execution without wait states when running from flash memory.
Does the LPC2129FBD64,151 support in-system programming (ISP)?
Yes, the LPC2129FBD64,151 supports In-System Programming via its UART0 interface using the on-chip bootloader. Flash programming takes 1 ms per 512-byte line, and sector or full-chip erase completes in 400 ms - enabling field firmware updates without removing the device from the PCB.
How many CAN interfaces does the LPC2129FBD64,151 integrate?
The LPC2129FBD64,151 integrates two fully independent CAN 2.0B-compliant controllers with advanced acceptance filters. This distinguishes it from the LPC2109 (one CAN) and matches the LPC2119, enabling dual-bus architectures for redundancy or functional separation in automotive and industrial networks.
What is the ADC resolution and conversion speed of the LPC2129FBD64,151?
The LPC2129FBD64,151 features a four-channel 10-bit successive approximation ADC with a minimum conversion time of 2.44 µs per sample. It supports burst mode, external trigger initiation, and dedicated result registers per channel to minimize interrupt latency during high-throughput acquisition.
Is the LPC2129FBD64,151 pin-compatible with other LPC21xx devices in the same package?
Yes, the LPC2129FBD64,151 shares identical LQFP64 pin configuration and function mapping with LPC2109FBD64/01 and LPC2119FBD64/01, including Fast GPIO, SSP, and enhanced UART features. However, flash size (256 kB), SRAM (16 kB), and dual-CAN capability are unique to LPC2129FBD64,151 within this footprint.
LPC2129FBD64,151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- LPC2100
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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:
LPC2129FBD64,151 FAQ
1.How can I place an order for LPC2129FBD64,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2129FBD64,151 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 LPC2129FBD64,151 reliable?
The price and inventory of LPC2129FBD64,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2129FBD64,151 is usually 5 days.
3.What payment methods are accepted for LPC2129FBD64,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2129FBD64,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2129FBD64,151?
LPC2129FBD64,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2129FBD64,151 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 LPC2129FBD64,151?
For technical support, including LPC2129FBD64,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2129FBD64,151 requirements.
6.How does Aetrix verify that LPC2129FBD64,151 is sourced from the original manufacturer or authorized distributors?
All LPC2129FBD64,151 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 LPC2129FBD64,151 meets industry standards.
7.What is the process for return or replacement of LPC2129FBD64,151?
All LPC2129FBD64,151 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2129FBD64,151, 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 LPC2129FBD64,151 part is unused and in its original packaging.
Return procedure for LPC2129FBD64,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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