LPC2141/42/44/46/48

Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC


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The LPC2141/42/44/46/48 microcontrollers are based on a 16-bit/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support, that combine the microcontroller with embedded high-speed flash memory ranging from 32 kB to 512 kB. A 128-bit wide memory interface and a unique accelerator architecture enable 32-bit code execution at the maximum clock rate. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 % with minimal performance penalty.

Due to their tiny size and low power consumption, LPC2141/42/44/46/48 are ideal for applications where miniaturization is a key requirement, such as access control and point-of-sale. Serial communications interfaces ranging from a USB 2.0 Full-speed device, multiple UARTs, SPI, SSP to I²C-bus and on-chip SRAM of 8 kB up to 40 kB, make these devices very well suited for communication gateways and protocol converters, soft modems, voice recognition and low end imaging, providing both large buffer size and high processing power. Various 32-bit timers, single or dual 10-bit ADC(s), 10-bit DAC, PWM channels and 45 fast GPIO lines with up to nine edge or level sensitive external interrupt pins make these microcontrollers suitable for industrial control and medical systems.

Features and benefits

2.1 Key features

  • 16-bit/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.
  • 8 kB to 40 kB of on-chip static RAM and 32 kB to 512 kB of on-chip flash memory. 128-bit wide interface/accelerator enables high-speed 60 MHz operation.
  • In-System Programming/In-Application Programming (ISP/IAP) via on-chip boot loader software. Single flash sector or full chip erase in 400 ms and programming of 256 B in 1 ms.
  • EmbeddedICE RT and Embedded Trace interfaces offer real-time debugging with the on-chip RealMonitor software and high-speed tracing of instruction execution.
  • USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM. In addition, the LPC2146/48 provides 8 kB of on-chip RAM accessible to USB by DMA.
  • One or two (LPC2141/42 vs. LPC2144/46/48) 10-bit ADCs provide a total of 6/14 analog inputs, with conversion times as low as 2.44 µs per channel.
  • Single 10-bit DAC provides variable analog output (LPC2142/44/46/48 only).
  • Two 32-bit timers/external event counters (with four capture and four compare channels each), PWM unit (six outputs) and watchdog.
  • Low power Real-Time Clock (RTC) with independent power and 32 kHz clock input.
  • Multiple serial interfaces including two UARTs (16C550), two Fast I²C-bus (400 kbit/s), SPI and SSP with buffering and variable data length capabilities.
  • Vectored Interrupt Controller (VIC) with configurable priorities and vector addresses.
  • Up to 45 of 5 V tolerant fast general purpose I/O pins in a tiny LQFP64 package.
  • Up to 21 external interrupt pins available.
  • 60 MHz maximum CPU clock available from programmable on-chip PLL with settling time of 100 µs.
  • On-chip integrated oscillator operates with an external crystal from 1 MHz to 25 MHz.
  • Power saving modes include Idle and Power-down.
  • Individual enable/disable of peripheral functions as well as peripheral clock scaling for additional power optimization.
  • Processor wake-up from Power-down mode via external interrupt or BOD.
  • Single power supply chip with POR and BOD circuits:
    • CPU operating voltage range of 3.0 V to 3.6 V (3.3 V ± 10 %) with 5 V tolerant I/O pads.

Show functional diagram

Block diagram: LPC2141FBD64, LPC2142FBD64, LPC2144FBD64, LPC2146FBD64, LPC2148FBD64
Block diagram: LPC2141FBD64, LPC2142FBD64, LPC2144FBD64, LPC2146FBD64, LPC2148FBD64

Parametrics of this product

Type numberPackageProduct statusfmax [max](MHz)FLASH(kB)RAM(kB)I/O pinsCANUARTSPIADCTimersPWMPackage nameCPU supply voltage(V)Product descriptionNr. USB devicesUSB deviceUSB hostUSB OTGTemperature rangePLL
LPC2141FBD64SOT314-2
(LQFP64)
Production6032845021636LQFP643.3Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
LPC2142FBD64SOT314-2
(LQFP64)
Production60641645021636LQFP643.3Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
LPC2144FBD64SOT314-2
(LQFP64)
Production6012816450211436LQFP643.3Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
LPC2146FBD64SOT314-2
(LQFP64)
Production6025640450211436LQFP643.3Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC
LPC2148FBD64SOT314-2
(LQFP64)
Production6051240450211436LQFP643.3Single-chip 16-bit/32-bit microcontroller; 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC1100FY

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
LPC2141FBD64LPC2141FBD64,1519352 800 15151Volume productionSOT314-2
(LQFP64)
Tray Pack, Bakeable, SingleStandard Marking
LPC2142FBD64LPC2142FBD64,1519352 800 17151Volume productionSOT314-2
(LQFP64)
Tray Pack, Bakeable, SingleStandard Marking
LPC2144FBD64LPC2144FBD64,1519352 800 18151Volume productionSOT314-2
(LQFP64)
Tray Pack, Bakeable, SingleStandard Marking
LPC2146FBD64LPC2146FBD64,1519352 800 19151Volume productionSOT314-2
(LQFP64)
Tray Pack, Bakeable, SingleStandard Marking
LPC2146FBD64LPC2146FBD64,5579352 800 19557Volume productionSOT314-2
(LQFP64)
Tray Dry Pack, Bakeable, MultipleStandard Marking
LPC2148FBD64LPC2148FBD64,1519352 800 21151Volume productionSOT314-2
(LQFP64)
Tray Pack, Bakeable, SingleStandard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
LPC2141FBD64LPC2141FBD64,151LPC2141FBD64Always Pb-free2.842.5839793281653747E811
LPC2142FBD64LPC2142FBD64,151LPC2142FBD64Always Pb-free2.842.5839793281653747E811
LPC2144FBD64LPC2144FBD64,151LPC2144FBD64Always Pb-free2.842.5839793281653747E811
LPC2146FBD64LPC2146FBD64,151LPC2146FBD64Always Pb-free2.842.5839793281653747E811
LPC2146FBD64LPC2146FBD64,557LPC2146FBD64Always Pb-free2.842.5839793281653747E812
LPC2148FBD64LPC2148FBD64,151LPC2148FBD64Always Pb-free2.842.5839793281653747E811
Quality and reliability disclaimer

Quality and reliability disclaimer

Important Legal Notice on the product/generic quality information, No Warranty

NXP Semiconductors is providing this data for your convenience only. Please note however that NO WARRANTY, REPRESENTATION, GUARANTEE OR LEGALLY BINDING PRODUCT DESCRIPTION is provided by publishing this informational data, nor does NXP Semiconductors acknowledge or accept any liability related thereto. The documentation and data on NXP Semiconductors products can be found in the data sheets as officially published by NXP Semiconductors. For all purchase of products from NXP Semiconductors the NXP Semiconductors' General Terms and Conditions of Commercial Sale will apply.

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Documentation for this product

TypeFormatTitleDate
Data sheetpdfSingle-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC (v.5.0)2011-08-12
Application notepdfUsing IAP for LPC2000 ARM devices (v.2.0)2004-10-25
Application notepdfNicheLite for LPC implementation notes (v.2.0)2009-07-16
Application notepdfMigrating to the LPC1700 series (v.1.0)2009-10-06
Application notepdfLPC2000 secondary bootloader for code update using IAP (v.1.0)2009-05-26
Application notepdfUsing the Philips LPC2000 Flash utility with the Keil MCB2100 and IAR LPC210x Kickstart evaluation boards (v.4.0)2010-02-16
Application notepdfEntering ISP mode from user code (v.3.0)2006-09-06
Application notepdfNesting of interrupts in the LPC2000 (v.1.0)2005-06-06
Application notepdfConnecting ethernet interface with LPC2000 (v.1.0)2007-02-09
Application notepdfInitialization code/hints for the LPC2000 family (v.1.0)2005-11-01
Application notepdfAccessing SD/MMC card using SPI on LPC2000 (v.3.0)2007-01-08
Application notepdfuC/OS-II Time Management in LPC2000 (v.2.0)2007-07-18
Application notepdfHandling of spurious interrupts in the LPC2000 (v.1.0)2006-01-04
Application notepdfPower management for LPC2138 (v.1.0)2006-01-06
Application notepdfLPC214x power-down mode and USB wake-up (v.1.0)2006-06-27
Application notepdfMigrating to the LPC2300/2400 family (v.1.0)2007-02-05
Application notepdfRealizing an MP3 player with the LPC2148, using libmad and EFSL (v.1.0)2007-04-23
Application notepdfInterfacing NXP bridge IC with NXP ARM microcontroller (v.1.0)2007-02-26
Application notepdfBrushless DC motor control using the LPC2141 (v.1.0)2007-10-18
Application notepdfFull-duplex software UART for LPC2000 (v.1.0)2008-01-18
Application notepdfUSB secondary ISP bootloader (v.2.0)2008-07-17
Application notepdfRC5 decoder using the LPC2000 (v.1.0)2008-07-17
Application notepdfLPC214x USB simplified - API approach to HID class (v.1.0)2008-08-29
Application notepdfUSB - DALI master using the LPC2141 (v.1.0)2008-11-03
BrochurepdfLooking for more 32-bit MCU options? Start here. (v.1.0)2009-04-01
BrochurepdfCreate smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (v.1.0)2008-06-01
Errata sheetpdfErrata sheet LPC2141 (v.2.0)2011-03-17
Errata sheetpdfErrata sheet LPC2142 (v.2.0)2011-03-17
Errata sheetpdfErrata sheet LPC2144 (v.2.0)2011-03-18
Errata sheetpdfErrata sheet LPC2146 (v.2.0)2011-03-18
Errata sheetpdfErrata sheet LPC2148 (v.2.0)2011-03-18
Line cardpdfDevelopment Tools for ARM-based MCUs; Select from the Best in Support (v.1.0)2009-06-01
Other typezipAN10835 - LPC2000 series secondary bootloader source code (v.1.0)2009-05-27
Other typepdfLPC2xxx UART transmitter code example (v.1.0)2005-09-19
Other typepdfLPC2xxx SPI master code example (v.1.0)2006-01-20
Other typepdfLPC2000 EINT dual edge interrupts (v.1.0)2006-02-22
Other typepdfLPC2000 ADC code example (v.1.0)2006-03-27
Other typepdfLPC2000 I2C slave code example (v.1.0)2006-04-21
Other typezipLPC2000 SPI slave code example (v.1.0)2006-06-16
Other typezipAN10711 USB Secondary Bootloader (v.1.0)2008-06-01
SoftwarezipAN11008 - Flash based non-volatile storage (v.1.0)2011-02-22
Technical notezipLPC21xx/22xx, 2104/5/6 revision defect (with software) (v.1.0)2008-10-13
User manualpdfLPC214x User manual (v.4.0)2012-05-21

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
LPC2148FBD649352 800 21151LPC2148FBD64,151NAFUTURE ELECTRONICS6,1895/23/2012Buy online 
   EUFUTURE ELECTRONICS UK6,1895/23/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA6,1895/23/2012Buy online 
   EUAVNET EXPRESS EUROPE3,2005/24/2012Buy online 
   NAARROW ELECTRONICS2,9005/24/2012Buy online 
   NADIGI-KEY CORPORATION8435/24/2012Buy online 
   EUARROW EUROPE6165/23/2012Buy online 
   ASELEMENT14 APAC3325/24/2012Buy online 
   EUFARNELL3195/24/2012Buy online 
   ASIAWPI16016005/14/2012Buy online 
   NANEWARK/ELEMENT1425/24/2012Buy online 
   JAPANCHIP ONE STOPyes05/14/2012Buy online 
LPC2142FBD649352 800 17151LPC2142FBD64,151ASAVNET EXPRESS ASIA2,4005/7/2012Buy online 
   EUAVNET EXPRESS EUROPE1,6005/24/2012Buy online 
   NADIGI-KEY CORPORATION1,0585/24/2012Buy online 
   NAARROW ELECTRONICS6505/24/2012Buy online 
   NAFUTURE ELECTRONICS1605/23/2012Buy online 
   EUFUTURE ELECTRONICS UK1605/23/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA1605/23/2012Buy online 
   NAAVNET EXPRESS1485/24/2012Buy online 
   NANEWARK/ELEMENT141445/24/2012Buy online 
   EUFARNELL1445/24/2012Buy online 
   ASELEMENT14 APAC1445/24/2012Buy online 
   JAPANCHIP ONE STOPyes05/14/2012Buy online 
LPC2146FBD649352 800 19151LPC2146FBD64,151NAARROW ELECTRONICS2,7935/24/2012Buy online 
   NAFUTURE ELECTRONICS1,8825/23/2012Buy online 
   EUFUTURE ELECTRONICS UK1,8825/23/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA1,8825/23/2012Buy online 
   NADIGI-KEY CORPORATION7245/24/2012Buy online 
   EUAVNET EXPRESS EUROPE3205/24/2012Buy online 
   EUFARNELL825/24/2012Buy online 
   JAPANCHIP ONE STOPno05/14/2012Buy online 
LPC2146FBD649352 800 19557LPC2146FBD64,557EUARROW EUROPE7055/23/2012Buy onlinenot available
   EUFARNELL825/24/2012Buy online 
   JAPANCHIP ONE STOPno05/14/2012Buy online 
LPC2141FBD649352 800 15151LPC2141FBD64,151NAARROW ELECTRONICS36,2465/24/2012Buy online 
   NADIGI-KEY CORPORATION1,9665/24/2012Buy online 
   EUAVNET EXPRESS EUROPE6405/24/2012Buy online 
   NAFUTURE ELECTRONICS1155/23/2012Buy online 
   EUFUTURE ELECTRONICS UK1155/23/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA1155/23/2012Buy online 
   NAAVNET EXPRESS1055/24/2012Buy online 
   JAPANCHIP ONE STOPyes05/14/2012Buy online 
LPC2144FBD649352 800 18151LPC2144FBD64,151NAFUTURE ELECTRONICS2,3125/23/2012Buy online 
   EUFUTURE ELECTRONICS UK2,3125/23/2012Buy online 
   ASFUTURE ELECTRONICS- ASIA2,3125/23/2012Buy online 
   ASIAWPI1,44016005/14/2012Buy online 
   NADIGI-KEY CORPORATION4915/24/2012Buy online 
   NAWPG AMERICAS INC.3205/24/2012Buy online 
   NAARROW ELECTRONICS2415/24/2012Buy online 
   EUFARNELL1545/24/2012Buy online 
   ASELEMENT14 APAC1325/24/2012Buy online 
   NAAVNET EXPRESS1045/24/2012Buy online 
   EUARROW EUROPE715/23/2012Buy online 
   JAPANCHIP ONE STOPno05/14/2012Buy online 

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