NXP Semiconductors LPC2124FBD64/01,15
- Part No.:
- LPC2124FBD64/01,15
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC2124FBD64/01,15.pdf
- Description:
- IC MCU 16/32B 256KB FLASH 64LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
LPC2124FBD64/01 from NXP Semiconductors is a 32-bit ARM7TDMI-S microcontroller in LQFP64 package, featuring 256 kB flash, 16 kB SRAM, four-channel 10-bit ADC (2.44 µs conversion), dual 32-bit timers with capture/compare, six PWM outputs, RTC, and two UARTs with fractional baud rate generators. It targets industrial control, medical systems, and embedded gateways requiring deterministic real-time response and compact footprint.
For engineers reviewing the LPC2124FBD64/01 datasheet, LPC2124FBD64/01 pinout, LPC2124FBD64/01 application, or LPC2124FBD64/01 equivalent, this page delivers verified technical context, validated pin functions, confirmed alternative parts, and supply-ready availability details - all grounded in NXP's Rev. 7 datasheet and official ordering information.
Technical Context
The LPC2124FBD64/01 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 128-bit wide memory interface and accelerator architecture sustain full-speed execution without wait states.
It integrates dual APB peripherals including Fast I/O registers (3.5× faster toggling than legacy LPC2000), buffered SSP supporting SPI/SSI/Microwire, and dedicated ADC result registers per channel to minimize interrupt latency. All four analog inputs (AIN0–AIN3) are 5 V tolerant when configured as GPIO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S 32-bit RISC processor with Thumb mode support for code density optimization |
| Max Clock Speed | 60 MHz via on-chip PLL with 100 µs settling time - enables real-time deterministic timing |
| Flash Memory | 256 kB ISP/IAP flash - supports field firmware updates and secure CRP-level protection |
| SRAM | 16 kB on-chip static RAM - accessible as 8/16/32-bit with zero-wait-state operation |
| ADC | Four-channel 10-bit successive approximation ADC with 2.44 µs conversion time - supports burst mode and external trigger |
| Timers & PWM | Two 32-bit timers (4 capture + 4 compare each) and six PWM outputs - suitable for motor control and power regulation |
| Serial Interfaces | Two UARTs (16C550-compatible, fractional baud rate), Fast I²C (400 kbit/s), two SPIs, and SSP - enables multi-protocol gateway design |
| I/O Capability | 46 total GPIO pins (5 V tolerant), nine external interrupt inputs, and Fast GPIO registers relocated to ARM local bus |
Pinout & Package
Package: LQFP64 (SOT314-2), plastic low-profile quad flat package, 10 × 10 × 1.4 mm body, 64 leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0[0]/TXD0/PWM1 | UART0 transmit / PWM output 1 | Primary serial debug output or motor control signal generation |
| P0[27]/AIN0/CAP0[1]/MAT0[1] | Analog input 0 / Timer 0 capture / match | Dedicated ADC channel with simultaneous timer event capture capability |
| P1[27]/TDO | JTAG test data output | Required for boundary scan and debug trace via EmbeddedICE-RT |
| VDD(1V8) | 1.8 V core supply | Power domain for CPU and internal logic - must be decoupled near pins 17 and 49 |
| VDD(3V3) | 3.3 V I/O supply | Supplies all GPIO, UART, and peripheral I/O - 5 V tolerant pads allow mixed-voltage interfacing |
| RESET | Active-low reset input | TTL-compatible with hysteresis; LOW during power-up forces bootloader activation |
Key Features
| Feature | Design Value |
|---|---|
| Fast GPIO Registers | Relocated to ARM local bus - enables port pin toggle up to 3.5× faster than standard GPIO, critical for bit-banged protocols |
| Dedicated ADC Result Registers | One per channel (AIN0–AIN3) - eliminates read-modify-write overhead and reduces ISR latency in high-frequency sampling |
| Fractional Baud Rate Generator | Integrated in both UART0 and UART1 - achieves exact 115200 Bd with any crystal ≥2 MHz, removing need for custom clock crystals |
| Embedded Trace Macrocell (ETM) | Non-intrusive real-time instruction trace - enables cycle-accurate profiling without halting CPU execution |
| Diversified Code Read Protection (CRP) | Three security levels (CRP1–CRP3) - disables JTAG/ISP access while permitting full chip erase to restore functionality |
| 5 V Tolerant ADC Pads | AIN0–AIN3 remain 5 V tolerant even when configured as digital I/O - simplifies sensor interface design without level shifters |
Applications
| Industrial Motor Control | Medical Vital Sign Monitor |
|---|---|
Use Scenario: Closed-loop speed control of BLDC motors using PWM-driven gate drivers and current feedback. IC Role / Device Role / Timing Role: Real-time execution of PID loop at ≤100 µs intervals, synchronized ADC sampling of phase currents, and precise PWM edge placement. Use Value: Six independent PWM outputs and dual 32-bit timers with capture enable accurate commutation timing and fault detection within single chip. |
Use Scenario: Portable ECG acquisition system with analog front-end amplification and digital filtering. IC Role / Device Role / Timing Role: Simultaneous sampling of four biopotential channels at 1 kHz, real-time FIR filtering, and UART transmission to host PC. Use Value: Four-channel 10-bit ADC with dedicated result registers ensures low-latency, jitter-free sampling; 256 kB flash stores algorithm libraries and calibration data. |
| Access Control Terminal | Protocol Conversion Gateway |
Use Scenario: Secure door controller interfacing RFID readers, keypad, buzzer, and relay outputs. IC Role / Device Role / Timing Role: Multi-threaded handling of contactless card authentication, PIN validation, and real-time lock actuation with tamper detection. Use Value: 46 GPIO pins support direct connection of peripherals; Fast GPIO registers ensure responsive keypad scanning and LED status updates. |
Use Scenario: Fieldbus bridge converting Modbus RTU over RS-485 to I²C-connected sensors and SPI-based wireless modules. IC Role / Device Role / Timing Role: Dual UARTs handle master/slave RS-485 communication while I²C and SPI manage local peripherals with configurable clock rates. Use Value: Hardware auto-CTS/RTS flow control and fractional baud rate generator guarantee reliable interoperability across diverse industrial baud rates and timing constraints. |
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 |
|---|---|---|---|
| LPC2129FBD64/01 | Same ARM7TDMI-S core, 512 kB flash, identical pinout and peripheral set | Higher flash capacity supports larger protocol stacks and OTA update partitions | Select when firmware complexity exceeds 256 kB or dual-bank update capability is required |
| LPC2138FBD64 | 256 kB flash, 32 kB SRAM, USB 2.0 device controller, no CRP3 support | USB connectivity replaces one UART; higher SRAM aids buffer-intensive comms tasks | Choose for host-facing devices needing USB HID/class-compliant interfaces instead of dual UARTs |
Compared with LPC2124FBD64/01, LPC2129FBD64/01 offers double flash without layout change, while LPC2138FBD64 trades UART flexibility for USB integration - both require validation of voltage rail compatibility and bootloader configuration.
Availability
LPC2124FBD64/01 is available at Aetrix Electronics and suitable for industrial control, medical monitoring, and embedded gateway applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LPC2124FBD64/01 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in ARM-based microcontrollers and embedded security.
The LPC21xx series was designed for cost-sensitive, real-time embedded applications demanding high peripheral integration, low power, and robust debug infrastructure - targeting industrial automation and portable instrumentation.
FAQ
What is the maximum operating frequency of the LPC2124FBD64/01?
The LPC2124FBD64/01 achieves a maximum CPU clock of 60 MHz using its on-chip PLL with 100 µs settling time. This frequency is sustained via the 128-bit wide memory interface and accelerator architecture, enabling zero-wait-state 32-bit code execution - a key specification confirmed in NXP's Rev. 7 datasheet Section 2.2 and Figure 1 block diagram.
Does the LPC2124FBD64/01 support in-system programming (ISP)?
Yes, the LPC2124FBD64/01 supports In-System Programming via its UART0 interface using the on-chip bootloader. Flash programming takes 1 ms per 512 B line, and sector or full-chip erase completes in 400 ms - capabilities explicitly documented in Section 2.2 and Table 2 of the NXP datasheet Rev. 7.
How many ADC channels does the LPC2124FBD64/01 have, and what is their resolution?
The LPC2124FBD64/01 integrates a single 10-bit successive approximation ADC with four multiplexed input channels (AIN0–AIN3). Each channel features a dedicated result register and supports conversion times as low as 2.44 µs - specifications verified in Sections 2.2, 6.8, and Table 4 of the official NXP datasheet.
Is the LPC2124FBD64/01 pin-compatible with the LPC2114FBD64/01?
Yes, the LPC2124FBD64/01 and LPC2114FBD64/01 share identical LQFP64 pinout and package (SOT314-2), differing only in flash capacity (256 kB vs. 128 kB) and temperature range compliance. Pin configuration is explicitly stated as identical for /00 and /01 suffixes in Section 5.1 of the NXP datasheet Rev. 7.
What debug interfaces are supported by the LPC2124FBD64/01?
The LPC2124FBD64/01 supports JTAG via TRST/TCK/TMS/TDI/TDO pins (P1[31], P1[29], P1[30], P1[28], P1[27]) and EmbeddedICE-RT for breakpoints/watchpoints. It also includes Embedded Trace Macrocell (ETM) for non-intrusive real-time instruction tracing - all confirmed in Sections 2.2, 4, and 5.2 of the NXP Rev. 7 datasheet.
LPC2124FBD64/01,15 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:
- 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:
LPC2124FBD64/01,15 FAQ
1.How can I place an order for LPC2124FBD64/01,15 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2124FBD64/01,15 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 LPC2124FBD64/01,15 reliable?
The price and inventory of LPC2124FBD64/01,15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2124FBD64/01,15 is usually 5 days.
3.What payment methods are accepted for LPC2124FBD64/01,15?
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LPC2124FBD64/01,15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2124FBD64/01,15 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 LPC2124FBD64/01,15?
For technical support, including LPC2124FBD64/01,15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2124FBD64/01,15 requirements.
6.How does Aetrix verify that LPC2124FBD64/01,15 is sourced from the original manufacturer or authorized distributors?
All LPC2124FBD64/01,15 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 LPC2124FBD64/01,15 meets industry standards.
7.What is the process for return or replacement of LPC2124FBD64/01,15?
All LPC2124FBD64/01,15 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2124FBD64/01,15, 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 LPC2124FBD64/01,15 part is unused and in its original packaging.
Return procedure for LPC2124FBD64/01,15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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