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NXP Semiconductors LPC2104BBD48,151
- Part No.:
- LPC2104BBD48,151
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
LPC2104BBD48,151.pdf
- Description:
- IC MCU 16/32B 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,335
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Product details
Overview
LPC2104BBD48,151 from NXP Semiconductors is a 32-bit ARM7TDMI-S microcontroller with 128 kB flash, 16 kB SRAM, 60 MHz max CPU clock, dual UARTs with fractional baud rate generators, and 32 GPIO pins in LQFP48 package-designed for compact embedded systems such as access control terminals and protocol converters.
For engineers reviewing the LPC2104BBD48,151 datasheet, LPC2104BBD48,151 pinout, LPC2104BBD48,151 application, or LPC2104BBD48,151 equivalent, key selection criteria include its 1.8 V core / 3.3 V I/O dual supply, 5 V tolerant I/Os, on-chip PLL with 100 µs settling time, and support for ISP/IAP programming without external hardware.
Technical Context
The LPC2104BBD48,151 implements the ARM7TDMI-S core with Thumb instruction set support, enabling up to 30 % code size reduction versus full 32-bit ARM mode while maintaining high throughput via 3-stage pipeline execution. Its memory subsystem includes a 128-bit wide flash interface with accelerator for 60 MHz operation and configurable vector interrupt controller supporting FIQ/vectored/non-vectored IRQ prioritization.
Peripheral integration includes two UARTs (16C550-compatible) with hardware handshake and autobauding, Fast I²C-bus (400 kbit/s), SPI/SSP controller, two 32-bit timers (7 capture/compare channels), 6-channel PWM unit, RTC, watchdog, and trace macrocell for non-intrusive real-time instruction tracing-enabling deterministic real-time response in industrial control and communication gateway applications.
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 deterministic real-time timing without external clock synthesis. |
| Flash Memory | 128 kB ISP/IAP flash with 100,000 erase/write cycles and 20-year data retention-supports field firmware updates without removing MCU. |
| SRAM | 16 kB on-chip static RAM accessible as 8/16/32-bit-provides low-latency data storage for critical buffers and stack operations. |
| I/O Voltage | 1.8 V ± 8.3 % core supply (VDD(1V8)) and 3.3 V ± 10 % I/O supply (VDD(3V3)) with 5 V tolerant pins-enables direct interfacing to legacy 5 V peripherals. |
| Package | LQFP48 (7 mm × 7 mm, 1.4 mm height, SOT313-2)-standardized footprint for automated assembly and thermal management in space-constrained designs. |
| Operating Temp | 0 °C to +70 °C industrial grade-validated for stable operation in commercial and light-industrial environments without extended temperature qualification. |
Pinout & Package
LQFP48 package (SOT313-2), 7 mm × 7 mm body, 48 leads, 0.5 mm pitch, 1.4 mm max height. Pin configuration identical across all LQFP48 variants of LPC2104/2105/2106 series.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P0.0/TXD0/PWM1 | UART 0 transmit / PWM output | Dual-function pin: primary use as UART0 serial output; alternate use as PWM channel 1-requires PINSEL0 configuration before activation. |
| P0.1/RXD0/PWM3 | UART 0 receive / PWM output | Input-capable pin for UART0 RX; also drives PWM3 signal-enables synchronous motor control or LED dimming alongside serial comms. |
| P0.2/SCL/CAP0.0 | I²C clock / Timer 0 capture | Open-drain 5 V tolerant I²C-bus clock line; also serves as edge-triggered input for Timer 0 channel 0 capture-supports precise timing event measurement. |
| P0.3/SDA/MAT0.0 | I²C data / Timer 0 match | Open-drain 5 V tolerant I²C-bus data line; also provides open-drain match output for Timer 0 channel 0-ideal for generating synchronized pulses to external logic. |
| XTAL1/XTAL2 | Crystal oscillator inputs | Connects to 1–25 MHz crystal; XTAL1 is input, XTAL2 is output-defines system clock source with internal oscillator circuitry eliminating need for external oscillator IC. |
| VDD(1V8), VDD(3V3), VSS | Power supply rails | Separate 1.8 V core and 3.3 V I/O supplies with four ground pins-ensures clean power domains and reduces noise coupling between digital logic and I/O drivers. |
| RESET | Active-low reset input | 5 V tolerant TTL-level reset pin with hysteresis-allows direct connection to pushbutton or supervisory IC without level-shifting. |
| n.c. | No-connect pins | Pins 4, 20, 25, 42 are internally unconnected-must remain unpopulated or left floating; no external circuitry permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Fractional baud rate generator | Enables precise UART communication at non-standard rates (e.g., 38.4 kbps, 115.2 kbps) across wide clock ranges-critical for legacy modem and industrial protocol compatibility. |
| Embedded Trace Macrocell (ETM) | Provides non-intrusive real-time instruction trace via dedicated trace port-eliminates debug performance impact and enables cycle-accurate software analysis without halting CPU. |
| Fast GPIO port | Supports port pin toggling up to 3.5× faster than standard GPIO-enables bit-banged protocols (e.g., 1-Wire, custom serial) and high-speed status signaling without timer overhead. |
| In-System Programming (ISP) | Allows flash reprogramming via UART0 using on-chip bootloader-enables firmware updates in final product without JTAG debugger or socketed programming. |
| Diversified Code Read Protection (CRP) | Three security levels (CRP1/CRP2/CRP3) prevent unauthorized flash readout-protects intellectual property in production devices while allowing controlled debug access during development. |
Applications
| Access Control Terminal | Industrial Protocol Converter |
|---|---|
Use Scenario: Embedded controller in door lock system reading RFID tags and managing relay outputs for door strike release. IC Role / Device Role / Timing Role: Main application processor executing authentication logic, driving UART-connected RFID reader, and controlling GPIO-based relays and status LEDs. Use Value: 32 GPIO pins enable direct interface to multiple sensors and actuators; 16 kB SRAM accommodates secure credential storage and real-time state tracking. | Use Scenario: Field-deployed device translating Modbus RTU over RS-485 to MQTT over Wi-Fi for legacy factory equipment connectivity. IC Role / Device Role / Timing Role: Central protocol translation engine handling UART-based Modbus framing, TCP/IP stack offload (via external module), and buffer management. Use Value: Dual UARTs with hardware flow control and fractional baud rate support ensure reliable communication with both legacy and modern interfaces simultaneously. |
| Point-of-Sale Peripheral | Low-End Imaging System |
Use Scenario: Compact barcode scanner module integrating laser diode driver, photodiode amplifier, and USB-to-serial bridge. IC Role / Device Role / Timing Role: Real-time signal acquisition and preprocessing unit capturing scan line data, performing basic decode, and streaming results via UART to host PC. Use Value: 60 MHz CPU clock and fast GPIO allow sub-millisecond response to trigger events; 128 kB flash stores multiple symbology decoding algorithms. | Use Scenario: Portable document scanner capturing grayscale images at 200 dpi using CMOS sensor and onboard JPEG compression. IC Role / Device Role / Timing Role: Image acquisition controller synchronizing sensor timing, buffering raw pixel data in SRAM, and executing lightweight compression routines. Use Value: Two 32-bit timers with capture capability precisely time sensor exposure and line sync; 16 kB SRAM holds one full scan line (1728 pixels × 1 byte). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LPC2105BBD48 | 32 kB SRAM (vs. 16 kB), same flash, package, and peripheral set. | Better suited for applications requiring larger runtime buffers or multi-threaded RTOS operation. | Select when additional SRAM is needed without changing PCB layout or firmware architecture. |
| LPC2106BBD48 | 64 kB SRAM, same flash and peripherals-no change in I/O count or clock speed. | Enables more complex protocol stacks or local data logging without external memory. | Choose for higher memory-demanding tasks like soft modem implementation or voice recognition preprocessing. |
Compared with LPC2105BBD48 and LPC2106BBD48, the LPC2104BBD48,151 offers optimal cost-performance balance for resource-constrained applications where 16 kB SRAM suffices-reducing BOM cost while retaining full peripheral compatibility and identical pinout.
Availability
LPC2104BBD48,151 is available at Aetrix Electronics and suitable for access control terminals, point-of-sale peripherals, and industrial protocol converters requiring stable component supply and long-term manufacturing continuity.
Supply support for LPC2104BBD48,151 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 leader delivering secure, scalable solutions for automotive, industrial, IoT, and mobile applications-with emphasis on energy efficiency, functional safety, and long-term product availability.
The LPC2104BBD48,151 belongs to the LPC2100 family of ARM7-based microcontrollers designed specifically for cost-sensitive, space-constrained embedded systems requiring rich peripheral integration and robust in-field programmability.
FAQ
What is the maximum operating frequency of the LPC2104BBD48,151?
The LPC2104BBD48,151 achieves a maximum CPU clock frequency of 60 MHz using its on-chip Phase-Locked Loop (PLL). The PLL has a specified settling time of 100 µs, ensuring rapid clock stabilization after power-up or frequency changes. This speed is enabled by the 128-bit wide flash interface and accelerator architecture, allowing true 32-bit instruction execution at peak rate without wait states.
Does the LPC2104BBD48,151 support in-system programming (ISP)?
Yes, the LPC2104BBD48,151 supports In-System Programming via its UART0 interface using the built-in bootloader. Flash programming requires no external programmer-only a UART connection and appropriate host software. Each 512-byte flash line writes in 1 ms, and sector or full-chip erase completes in 400 ms, enabling efficient field firmware updates and production programming.
What are the power supply requirements for the LPC2104BBD48,151?
The LPC2104BBD48,151 requires two independent power supplies: a 1.8 V ± 8.3 % core supply (VDD(1V8)) for internal logic and a 3.3 V ± 10 % I/O supply (VDD(3V3)) for GPIO and peripheral interfaces. All I/O pins are 5 V tolerant, allowing safe interfacing with legacy 5 V logic without external level shifters-critical for mixed-voltage system integration.
How many UART interfaces does the LPC2104BBD48,151 include, and what advanced features do they offer?
The LPC2104BBD48,151 integrates two UART interfaces (UART0 and UART1), both compliant with the 16C550 specification. Key enhancements include fractional baud rate generators for precise timing, hardware handshake (RTS/CTS), and autobauding capabilities-fully implemented in hardware to offload CPU during serial initialization and error recovery.
Is the LPC2104BBD48,151 pin-compatible with other members of the LPC2100 family?
Yes, the LPC2104BBD48,151 shares identical pin configuration and LQFP48 package (SOT313-2) with LPC2105BBD48 and LPC2106BBD48. All three devices have the same peripheral set, register map, and electrical characteristics-enabling direct hardware replacement and firmware reuse across memory variants without PCB redesign.
LPC2104BBD48,151 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- LPC2100
- Packaging:
- Bag
- Product Status:
- Obsolete
- 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:
- 32
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.65V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
LPC2104BBD48,151 FAQ
1.How can I place an order for LPC2104BBD48,151 through Aetrix?
Please submit a Request for Quotation (RFQ) for LPC2104BBD48,151 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 LPC2104BBD48,151 reliable?
The price and inventory of LPC2104BBD48,151 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LPC2104BBD48,151 is usually 5 days.
3.What payment methods are accepted for LPC2104BBD48,151?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LPC2104BBD48,151 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LPC2104BBD48,151?
LPC2104BBD48,151 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LPC2104BBD48,151 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 LPC2104BBD48,151?
For technical support, including LPC2104BBD48,151 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LPC2104BBD48,151 requirements.
6.How does Aetrix verify that LPC2104BBD48,151 is sourced from the original manufacturer or authorized distributors?
All LPC2104BBD48,151 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 LPC2104BBD48,151 meets industry standards.
7.What is the process for return or replacement of LPC2104BBD48,151?
All LPC2104BBD48,151 units undergo pre-shipment inspection (PSI). If there is an issue with LPC2104BBD48,151, 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 LPC2104BBD48,151 part is unused and in its original packaging.
Return procedure for LPC2104BBD48,151:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LPC2104BBD48,151 Tags
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