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NXP Semiconductors LPC2142FBD64,151
- Part No.:
- LPC2142FBD64,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
LPC2142FBD64,151.pdf
- Description:
- IC MCU 16/32BIT 64KB FLSH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,798
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Product details
Overview
LPC2142FBD64,151 from NXP Semiconductors is a 32-bit ARM7TDMI-S microcontroller in LQFP64 package with 64 kB flash, 16 kB SRAM, 2 kB USB endpoint RAM, single 10-bit ADC (6-channel), and single 10-bit DAC. It operates at up to 60 MHz via on-chip PLL and supports USB 2.0 Full-speed device operation - used in embedded industrial control, access systems, and protocol converters requiring compact size and mixed-signal capability.
For engineers reviewing the LPC2142FBD64,151 datasheet, LPC2142FBD64,151 pinout, LPC2142FBD64,151 application, or LPC2142FBD64,151 equivalent, key selection criteria include its integrated DAC output (AOUT on P0.25), USB DMA-capable endpoint RAM, 60 MHz real-time execution, 5 V-tolerant GPIO, and dual UART/I²C/SPI/SSP interfaces for gateway-class connectivity.
Technical Context
The LPC2142FBD64,151 implements the ARM7TDMI-S core with Thumb/ARM dual instruction set support, enabling high code density (up to 30 % smaller in Thumb mode) without sacrificing real-time interrupt latency. Its 128-bit wide memory interface and accelerator architecture sustain full 32-bit instruction execution at 60 MHz.
It integrates a Vectored Interrupt Controller (VIC) with configurable priorities, EmbeddedICE RT and trace interfaces for real-time debugging, and a dedicated USB 2.0 Full-speed controller with 2 kB endpoint RAM - distinct from the main SRAM and accessible by CPU or USB DMA (though USB DMA is not enabled in LPC2142 per datasheet Table 2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S 32-bit RISC processor with Thumb mode support for optimized code density. |
| Max Clock Speed | 60 MHz via programmable on-chip PLL (100 µs settling time); enables real-time deterministic response. |
| Memory | 64 kB on-chip flash (100k erase/write cycles, 20-year retention) + 16 kB SRAM + 2 kB dedicated USB endpoint RAM. |
| Analog Peripherals | Single 10-bit ADC with 6 input channels (AD0.0–AD0.5); single 10-bit DAC with analog output on P0.25 (AOUT). |
| Digital Interfaces | Two UARTs (16C550-compatible), two Fast I²C-bus (400 kbit/s), SPI, SSP, USB 2.0 Full-speed device controller. |
| I/O & Power | Up to 45 fast 5 V-tolerant GPIO pins; operating voltage 3.0–3.6 V (3.3 V ±10 %); supports Idle/Power-down modes. |
Pinout & Package
Package: LQFP64 (plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm, SOT314-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0/TXD0/PWM1 | UART0 transmit / PWM channel 1 | Primary serial debug output and motor/servo control signal; shared function requires pin mux configuration. |
| P0.25/AD0.4/AOUT | ADC0 input 4 / DAC analog output | Only pin supporting DAC output (AOUT) on LPC2142FBD64,151; disables digital I/O when DAC active. |
| P0.31/UP_LED/CONNECT | USB status LED / SoftConnect control | Open-drain output for USB enumeration indicator; controls external 1.5 kΩ pull-up to D+ for software-initiated connect/disconnect. |
| D+/D− | USB 2.0 Full-speed differential pair | Compliant bidirectional USB physical layer interface; requires 27 Ω series resistors and proper PCB routing for EMI control. |
| RESET | Active-low asynchronous reset input | 5 V tolerant TTL input with hysteresis; initiates full chip reset and forces boot loader entry if P0.14 held low during reset. |
| VDD/VSS/VDDA/VSSA/VREF | Power and reference supply pins | Separate digital/analog power domains (VDD/VSS vs. VDDA/VSSA) and dedicated ADC/DAC reference (VREF) required for <1 LSB error in analog conversions. |
Key Features
| Feature | Design Value |
|---|---|
| In-System Programming (ISP) | Enables firmware updates via UART0 without external programmer; sector erase in 400 ms, 256 B programming in 1 ms. |
| Embedded Trace Interface | Supports real-time instruction tracing and debug via JTAG/TracePort (P1.16–P1.24), critical for timing-critical ISR validation. |
| USB 2.0 Full-Speed Device | Dedicated controller with 2 kB endpoint RAM; supports HID, CDC, and custom class implementations without external USB PHY. |
| 10-bit DAC Output (AOUT) | Provides monotonic analog voltage generation (0–VREF) on P0.25; eliminates need for external DAC in sensor calibration or actuator biasing. |
| 5 V-Tolerant GPIO | 45 pins tolerate 5 V logic levels while powered from 3.3 V; simplifies interfacing with legacy peripherals and level-shifter elimination. |
Applications
| Industrial Control System | Access Control Terminal |
|---|---|
Use Scenario: Real-time monitoring of temperature, pressure, and valve position in PLC edge nodes with local feedback loop closure. IC Role / Device Role / Timing Role: Main controller executing PID algorithms, sampling ADC inputs every 100 µs, updating DAC for analog actuator drive, and communicating via UART/I²C to sensors. Use Value: Integrated 10-bit DAC (AOUT) enables direct analog output to 4–20 mA transmitters; 60 MHz CPU ensures sub-millisecond loop execution. | Use Scenario: Secure door entry system with RFID reader, keypad, buzzer, LED indicators, and USB-based firmware update capability. IC Role / Device Role / Timing Role: Central MCU managing biometric authentication, relay control, status LEDs (including UP_LED on P0.31), and USB CDC virtual COM port for field updates. Use Value: USB 2.0 Full-speed device controller with SoftConnect (P0.31) allows plug-and-play firmware upgrades; 5 V-tolerant GPIO interfaces directly with 5 V readers and buzzers. |
| Protocol Converter Gateway | Low-Power Medical Sensor Node |
Use Scenario: Bridging Modbus RTU (RS-485) to USB host for legacy industrial equipment integration into modern SCADA systems. IC Role / Device Role / Timing Role: Dual UART handling RS-485 framing and USB CDC abstraction; uses internal 16 kB SRAM as packet buffer and performs protocol translation in real time. Use Value: Two hardware UARTs with FIFOs and 40 kB max buffer space reduce host-side processing load; USB endpoint RAM isolates USB traffic from main memory contention. | Use Scenario: Portable pulse oximeter collecting analog photodiode signals, performing basic saturation calculation, and transmitting results over USB to clinical PC software. IC Role / Device Role / Timing Role: ADC samples dual-wavelength photodiode outputs at 1 kHz; DAC biases LED drivers; USB transfers processed SpO₂ values using CDC class. Use Value: Single 10-bit ADC with 6-channel multiplexing captures multiple analog sensors; low-power modes extend battery life between USB data bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2132FBD64 | No USB controller; 32 kB flash, 8 kB SRAM, no DAC; same LQFP64 package and ARM7 core. | Suitable only for non-USB, lower-memory cost-sensitive designs without analog output needs. | Select when USB and DAC are unnecessary and BOM cost reduction is prioritized over feature scalability. |
| LPC2148FBD64 | 512 kB flash, 32 kB + 8 kB shared USB RAM, dual 10-bit ADC (14-channel), DAC present. | Required for complex USB device firmware, larger code footprints, or multi-sensor analog acquisition. | Choose when future-proofing for firmware growth, adding USB mass storage, or expanding analog input count beyond 6 channels. |
Compared with LPC2142FBD64,151, LPC2132FBD64 lacks USB and DAC - limiting it to basic serial gateways - while LPC2148FBD64 adds scalable memory and dual ADCs but increases cost and power; LPC2142FBD64,151 strikes optimal balance for USB-enabled, DAC-requiring embedded control with moderate code size.
Availability
LPC2142FBD64,151 is available at Aetrix Electronics and suitable for industrial control systems, access terminals, and USB protocol converters requiring stable component supply, long-term lifecycle support, and verified NXP second-source availability.
Supply support for LPC2142FBD64,151 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.
The LPC214x family was designed for cost-sensitive, space-constrained embedded systems needing USB connectivity, analog I/O, and real-time control - targeting access control, point-of-sale, and industrial gateway applications.
FAQ
What is the maximum operating frequency of the LPC2142FBD64,151?
The LPC2142FBD64,151 achieves a maximum CPU clock frequency of 60 MHz using its on-chip PLL, which locks within 100 µs. This frequency is sustained across the full industrial temperature range (−40 °C to +85 °C) and enables deterministic real-time response for time-critical tasks like PWM generation and ADC sampling.
Does the LPC2142FBD64,151 support USB device functionality out of the box?
Yes, the LPC2142FBD64,151 integrates a USB 2.0 Full-speed device controller with 2 kB dedicated endpoint RAM. It supports standard USB classes (CDC, HID) without external PHY, and features SoftConnect via P0.31 to enable/disable the USB pull-up resistor under firmware control - all implemented in silicon, not requiring external components.
Where is the DAC output located on the LPC2142FBD64,151?
The DAC output (AOUT) on the LPC2142FBD64,151 is exclusively available on pin P0.25. When configured as AOUT, the digital I/O function of P0.25 is disabled, and the pin delivers a monotonic 10-bit analog voltage referenced to VREF (0–VREF range). This pin is shared with AD0.4, requiring functional muxing via the PINSEL registers.
How many analog input channels does the LPC2142FBD64,151 support?
The LPC2142FBD64,151 includes one 10-bit ADC (ADC0) with six analog input channels: AD0.0 through AD0.5. Pins AD0.6 and AD0.7 are also available but require remapping from alternate functions (SCK0 and MISO0 respectively); AD0.4 is shared with the DAC output (P0.25), so it cannot be used simultaneously as ADC input when DAC is active.
Is the LPC2142FBD64,151 pin-compatible with other LPC214x variants?
Yes, all LPC214x devices in the FBD64 package - including LPC2141FBD64, LPC2142FBD64, LPC2144FBD64, LPC2146FBD64, and LPC2148FBD64 - share identical pinouts and LQFP64 footprint. However, peripheral availability (e.g., second ADC, USB DMA RAM, UART modem signals) varies by model, so firmware and schematic design must verify functional pin mapping per specific variant.
LPC2142FBD64,151 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, USB
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 45
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 3.6V
- Data Converters:
- A/D 6x10b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2142FBD64,151 FAQ
1.How can I place an order for LPC2142FBD64,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2142FBD64,151 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 LPC2142FBD64,151 reliable?
The price and inventory of LPC2142FBD64,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2142FBD64,151 is usually 5 days.
3.What payment methods are accepted for LPC2142FBD64,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2142FBD64,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2142FBD64,151?
LPC2142FBD64,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2142FBD64,151 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 LPC2142FBD64,151?
For technical support, including LPC2142FBD64,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2142FBD64,151 requirements.
6.How does Aetrix verify that LPC2142FBD64,151 is sourced from the original manufacturer or authorized distributors?
All LPC2142FBD64,151 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 LPC2142FBD64,151 meets industry standards.
7.What is the process for return or replacement of LPC2142FBD64,151?
All LPC2142FBD64,151 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2142FBD64,151, 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 LPC2142FBD64,151 part is unused and in its original packaging.
Return procedure for LPC2142FBD64,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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