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NXP Semiconductors LPC2103FBD48,151
- Part No.:
- LPC2103FBD48,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC2103FBD48,151.pdf
- Description:
- IC MCU 16/32BIT 32KB FLSH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,346
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Product details
Overview
LPC2103FBD48,151 from NXP Semiconductors is a 32-bit ARM7TDMI-S microcontroller in LQFP48 package with 32 kB flash, 8 kB SRAM, 10-bit 8-channel ADC, dual UARTs (one with full modem interface), two Fast I²C buses (400 kbit/s), SPI/SSP, and 32 fast 5 V-tolerant GPIO pins. It operates at up to 70 MHz via on-chip PLL and targets compact industrial control, protocol conversion, and medical sensor interfaces.
For engineers reviewing the LPC2103FBD48,151 datasheet, LPC2103FBD48,151 pinout, LPC2103FBD48,151 application, or LPC2103FBD48,151 equivalent, key selection criteria include its 70 MHz real-time interrupt latency, 2.44 µs ADC conversion time per channel, vectored interrupt controller with configurable priorities, and support for ISP/IAP in-system programming with 100 ms sector erase.
Technical Context
The LPC2103FBD48,151 implements the ARM7TDMI-S core with dual instruction sets-32-bit ARM mode for performance-critical code (up to 30% faster than Thumb) and 16-bit Thumb mode for code density (30% smaller). Its 128-bit wide memory interface and accelerator enable full-speed 70 MHz execution from flash.
Peripheral integration includes a vectored interrupt controller (VIC) supporting FIQ, 16 prioritized IRQ vectors, and non-vectored IRQs; dual 32-bit timers (7 capture/7 compare channels total); dual 16-bit timers (3 capture/7 compare); and an RTC with independent 32 kHz clock input and VBAT backup capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM7TDMI-S 32-bit RISC processor with Thumb/ARM dual-mode execution and EmbeddedICE-RT debug support. |
| Max Clock Speed | 70 MHz CPU frequency via programmable on-chip PLL (10–25 MHz input, 100 µs settling time). |
| Memory | 32 kB on-chip flash (100,000 erase/write cycles, 20-year retention) + 8 kB on-chip SRAM (8/16/32-bit access). |
| ADC | 10-bit successive approximation ADC with 8 analog inputs, 2.44 µs conversion time per channel, dedicated result registers. |
| Timers | Two 32-bit timers (7 capture + 7 compare channels) + two 16-bit timers (3 capture + 7 compare channels). |
| Serial Interfaces | Dual UARTs (16C550-compatible, fractional baud rate generator, UART1 with full modem handshake); two Fast I²C (400 kbit/s); SPI/SSP with buffering and variable data length. |
| I/O & Interrupts | 32 fast GPIO pins (5 V tolerant), up to 13 external interrupt sources (edge/level sensitive), vectored interrupt controller with configurable priorities. |
Pinout & Package
Package: LQFP48 - plastic low-profile quad flat package, 48 leads, body size 7 × 7 × 1.4 mm (SOT313-2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0/TXD0/MAT3.1 | UART0 transmit / Timer3 PWM output | Primary serial TX for UART0; also provides PWM signal generation synchronized to Timer3 match events. |
| P0.2/SCL0/CAP0.0 | I²C0 clock / Timer0 capture input | Open-drain I²C bus clock line compliant with 400 kbit/s Fast-mode; also captures external event timing on Timer0 Channel 0. |
| P0.22/AD0.0 | ADC input 0 | Analog input for 10-bit ADC Channel 0; requires VDDA and VSSA isolation for <1 LSB error; digital I/O disabled when used as ADC input. |
| RST | Active-low reset input | TTL-level reset with hysteresis; 5 V tolerant; forces I/O and peripherals to default states and starts execution at address 0x00000000. |
| XTAL1/XTAL2 | Crystal oscillator inputs | Supports 1–25 MHz external crystal; XTAL1 accepts ≤1.8 V input; XTAL2 provides buffered output for oscillator feedback loop. |
| VDD(3V3), VSS | Digital I/O power/ground | 3.3 V supply for all GPIO and digital peripherals; multiple VSS pins (pins 7, 19, 43) ensure low-impedance ground return paths. |
Key Features
| Feature | Design Value |
|---|---|
| ISP/IAP Bootloader | Enables in-system programming via UART; supports single-sector (256 B in 1 ms) or full-chip erase (100 ms) without external programmer. |
| Accelerated GPIO | GPIO registers mapped to ARM local bus; byte-addressable I/O with bit-set/clear registers enabling atomic multi-bit updates in one instruction. |
| Real-Time Clock (RTC) | Independent 32 kHz oscillator input (RTCX1/RTCX2); retains time during power-down; powered by VBAT (3.3 V) for continuous operation. |
| Flash Code Read Protection | Three levels of CRP (Code Read Protection) prevent unauthorized firmware extraction while allowing debug access at selected security levels. |
| Power Management | Idle, Power-down (RTC active), and Deep power-down modes (Rev. A+); wake-up via external interrupt or RTC alarm; peripheral clock scaling for fine-grained optimization. |
Applications
| Industrial PLC Node | Medical Sensor Hub |
|---|---|
|
Use Scenario: Compact remote I/O module collecting analog sensor data (temperature, pressure) and controlling solenoids/relays in factory automation cabinets. IC Role / Device Role / Timing Role: Central controller executing real-time PID loops, managing UART-based Modbus RTU communication, and triggering PWM outputs for valve actuation. Use Value: 32 fast GPIOs drive discrete I/O; 10-bit ADC achieves ±0.1% measurement accuracy across 8 channels; 70 MHz CPU ensures sub-millisecond loop response. |
Use Scenario: Portable patient monitor aggregating ECG, SpO₂, and temperature signals before wireless transmission to central station. IC Role / Device Role / Timing Role: Signal acquisition engine with synchronized ADC sampling, low-power sleep between readings, and UART/USB bridge (via external transceiver) for data export. Use Value: 2.44 µs ADC conversion minimizes sampling jitter; Deep power-down mode extends battery life; 5 V-tolerant I/O simplifies connection to legacy analog front-ends. |
| Protocol Gateway | Smart Energy Meter Interface |
|
Use Scenario: Field gateway translating RS-485 Modbus data to I²C-connected smart sensors and vice versa in building management systems. IC Role / Device Role / Timing Role: Dual-protocol bridge using UART0 for RS-485 master/slave and I²C0/I²C1 for sensor network interfacing with arbitration and clock stretching support. Use Value: Two Fast I²C controllers (400 kbit/s) handle multiple slave devices; dual UARTs with hardware flow control (CTS/RTS) ensure robust serial link integrity. |
Use Scenario: Tamper-resistant electricity meter interface board acquiring voltage/current waveforms and communicating via optical port or RF module. IC Role / Device Role / Timing Role: Secure data acquisition unit with RTC timestamping, flash-based firmware update capability, and isolated UART for metrology IC communication. Use Value: On-chip 32 kB flash stores encrypted firmware and calibration tables; CRP Level 3 prevents reverse engineering; VBAT-backed RTC maintains billing timestamps during mains failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2102FBD48 | 16 kB flash, 4 kB SRAM, identical peripherals and pinout. | Suitable where firmware footprint is under 16 kB and RAM usage ≤4 kB; no change to PCB layout or driver stack. | Select when cost sensitivity outweighs future firmware expansion needs; same debug, power, and timing behavior. |
| LPC2103FHN48 | Same 32 kB flash/8 kB SRAM spec but in HVQFN48 (7×7×0.85 mm, leadless) package with thermal enhancement. | Better suited for space-constrained or thermally demanding applications; requires rework of PCB land pattern and stencil design. | Choose for higher-density layouts or improved thermal dissipation; verify JTAG routing compatibility due to different pin arrangement. |
Compared with LPC2102FBD48, the LPC2103FBD48,151 offers double flash and SRAM for larger firmware and real-time buffers; compared with LPC2103FHN48, it uses LQFP48 for easier prototyping and rework while maintaining identical electrical and functional behavior.
Availability
LPC2103FBD48,151 is available at Aetrix Electronics and suitable for industrial PLC nodes, medical sensor hubs, protocol gateways, and smart energy meter interfaces requiring stable component supply across long production lifecycles.
Supply support for LPC2103FBD48,151 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The LPC2100 series was designed as a cost-optimized, ultra-compact ARM7-based MCU family targeting space-constrained embedded systems requiring high interrupt responsiveness, mixed-signal integration, and field-upgradable firmware.
FAQ
What is the maximum operating frequency of the LPC2103FBD48,151?
The LPC2103FBD48,151 achieves a maximum CPU clock frequency of 70 MHz using its on-chip programmable PLL, which accepts input frequencies from 10 MHz to 25 MHz and settles within 100 µs. This enables deterministic real-time interrupt response and efficient execution of both ARM and Thumb instruction sets. The LPC2103FBD48,151 sustains this speed across its full temperature range (−40 °C to +85 °C) when supplied with stable 3.3 V and 1.8 V rails.
Does the LPC2103FBD48,151 support in-system programming (ISP)?
Yes, the LPC2103FBD48,151 includes an on-chip bootloader that supports ISP via UART0 or UART1 without requiring external programming hardware. It allows erasing individual flash sectors (256 bytes in 1 ms) or the full chip (100 ms) and programming new firmware while the device remains soldered on the target board. The LPC2103FBD48,151 also supports IAP (in-application programming) for dynamic firmware updates during runtime.
How many analog inputs does the 10-bit ADC in the LPC2103FBD48,151 support?
The LPC2103FBD48,151 integrates a single 10-bit successive approximation ADC with eight analog input channels (AD0.0 through AD0.7), each mapped to dedicated GPIO pins (P0.22 through P0.26 and P0.10–P0.12). Conversion time is as low as 2.44 µs per channel, and each input has a dedicated result register to minimize interrupt overhead during burst sampling sequences.
Can the LPC2103FBD48,151 operate in low-power modes with RTC functionality retained?
Yes, the LPC2103FBD48,151 supports Power-down mode with RTC active, where the main CPU and peripherals are halted but the RTC continues counting using its dedicated 32 kHz oscillator and VBAT-supplied power. Revision A and later versions (including LPC2103FBD48,151) also offer Deep power-down mode with optional SRAM/RTC retention, enabling wake-up via external interrupt or RTC alarm.
What debug interface does the LPC2103FBD48,151 provide?
The LPC2103FBD48,151 features EmbeddedICE-RT logic supporting real-time debugging via JTAG interface (TRST, TMS, TCK, TDI, TDO pins). When DBGSEL is pulled high at reset, pins P0.27–P0.31 automatically configure as JTAG signals. Debugging is enabled through on-chip RealMonitor software and compatible tools like Keil µVision or Segger J-Link. The LPC2103FBD48,151 also supports RTCK for adaptive clock synchronization during variable-frequency operation.
LPC2103FBD48,151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC2100
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- ARM7®
- Core Size:
- 16/32-Bit
- Speed:
- 70MHz
- Connectivity:
- I2C, Microwire, SPI, SSI, SSP, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 32
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2103FBD48,151 FAQ
1.How can I place an order for LPC2103FBD48,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2103FBD48,151 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 LPC2103FBD48,151 reliable?
The price and inventory of LPC2103FBD48,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2103FBD48,151 is usually 5 days.
3.What payment methods are accepted for LPC2103FBD48,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2103FBD48,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2103FBD48,151?
LPC2103FBD48,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2103FBD48,151 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 LPC2103FBD48,151?
For technical support, including LPC2103FBD48,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2103FBD48,151 requirements.
6.How does Aetrix verify that LPC2103FBD48,151 is sourced from the original manufacturer or authorized distributors?
All LPC2103FBD48,151 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 LPC2103FBD48,151 meets industry standards.
7.What is the process for return or replacement of LPC2103FBD48,151?
All LPC2103FBD48,151 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2103FBD48,151, 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 LPC2103FBD48,151 part is unused and in its original packaging.
Return procedure for LPC2103FBD48,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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