LPC2194

General description

The LPC2194 is based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support, together with 256 kB of embedded high-speed flash memory. A 128-bit wide memory interface and a unique accelerator architecture enable 32-bit code execution at maximum clock rate. For critical code size applications, the alternative 16-bit Thumb mode reduces code by more than 30 pct with minimal performance penalty.

With its compact 64-pin package, low power consumption, various 32-bit timers, 4-channel 10-bit ADC, four advanced CAN channels, PWM channels and 46 fast GPIO lines with up to nine external interrupt pins this microcontroller is particularly suitable for automotive applications such as a CAN gateway that connects several CAN busses or a CAN bridge between sub networks at different speeds. Sensors with CAN interface or debugging via CAN are additional applications that need more than two CAN interfaces. It is also an adequate solution for industrial control, medical systems and fault-tolerant maintenance buses. With a wide range of additional serial communications interfaces, it is also suited for communication gateways and protocol converters as well as many other general-purpose applications.

Remark: Throughout the data sheet, the term LPC2194 will apply to devices with and without the /00 or /01 suffixes. The /00 or the /01 suffix will be used to differentiate from other devices only when necessary.

Features

Key features brought by LPC2194/01 devices

• Fast GPIO ports enable port pin toggling up to 3.5 times faster than the original device. They also allow for a port pin to be read at any time regardless of its function.
• Dedicated result registers for ADC(s) reduce interrupt overhead. The ADC pads are 5 V tolerant when configured for digital I/O function(s).
• UART0/1 include fractional baud rate generator, auto-bauding capabilities and handshake flow-control fully implemented in hardware.
• Buffered SSP serial controller supporting SPI, 4-wire SSI, and Microwire formats.
• SPI programmable data length and master mode enhancement.
• Diversified Code Read Protection (CRP) enables different security levels to be implemented. This feature is available in LPC2194/00 devices as well.
• General purpose timers can operate as external event counters.

Key features common for all devices

• 16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.
• 16 kB on-chip SRAM and 256 kB on-chip flash program memory. 128-bit wide interface/accelerator enables high speed 60 MHz operation.
• In-System Programming (ISP) and In-Application Programming (IAP) via on-chip bootloader software. Flash programming takes 1 ms per 512 B line. Single sector or full chip erase takes 400 ms.
• EmbeddedICE-RT and Embedded Trace interfaces offer real-time debugging with on-chip RealMonitor software as well as high speed real-time tracing of instruction execution.
• Four interconnected CAN interfaces with advanced acceptance filters. Additional serial interfaces are two UARTs (16C550), Fast I²C-bus (400 kbit/s) and two SPIs.
• Four channel 10-bit ADC with conversion time as low as 2.44 us.
• Two 32-bit timers (with four capture and four compare channels), PWM unit (six outputs), Real-Time Clock and Watchdog.
• Vectored Interrupt Controller with configurable priorities and vector addresses.
• Up to forty-six 5 V tolerant general purpose I/O pins. Up to nine edge or level sensitive external interrupt pins available.
• Operating temperature range from -40 Cel to +125 Cel.
• 60 MHz maximum CPU clock available from programmable on-chip Phase-Locked Loop with settling time of 100 us.
• On-chip crystal oscillator with an operating range of 1 MHz to 30 MHz.
• Two low power modes, Idle and Power-down.
• Processor wake-up from Power-down mode via external interrupt.
• Individual enable/disable of peripheral functions for power optimization.
• Dual power supply:
  • CPU operating voltage range of 1.65 V to 1.95 V (1.8 V +- 0.15 V).
  • I/O power supply range of 3.0 V to 3.6 V (3.3 V +- 10 pct) with 5 V tolerant I/O pads.

Products/packages

Quality/reliability/chemical content

Quality and reliability disclaimer

Pricing/ordering/availability

Block diagrams/pinning

Design support

Application Notes

AN10403; Connecting ethernet interface with LPC2000 (2007-02-09)

AN10689; Full-duplex software UART for LPC2000 (2008-01-18)

AN10414; Handling of spurious interrupts in the LPC2000 (2006-01-04)

AN10404; Initialization code/hints for the LPC2000 family (2005-11-01)

AN10587; Interfacing NXP bridge IC with NXP ARM microcontroller (2007-02-26)

AN10835; LPC2000 secondary bootloader for code update using IAP (2009-05-26)

AN10878; Migrating to the LPC1700 series (2009-10-06)

AN10576; Migrating to the LPC2300/2400 family (2007-02-05)

AN10381; Nesting of interrupts in the LPC2000 (2005-06-06)

AN10775; NicheLite for LPC implementation notes (2009-07-16)

AN10254; Philips ARM LPC microcontroller family (2004-10-25)

AN10256; Using IAP for LPC2000 ARM devices (2004-10-25)

AN10302; Using the Philips LPC2000 Flash utility with the Keil MCB2100 and IAR LPC210x Kickstart evaluation boards (2010-02-16)

AN10413; uC/OS-II Time Management in LPC2000 (2007-07-18)

Support Documents

LPC2000_Series_Secondary_Bootloader; AN10835 - LPC2000 series secondary bootloader source code (2009-05-27)

75016543; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (2008-06-01)

75016739; Development Tools for ARM-based MCUs - June 2009 (2009-06-01)

index; Development Tools for LPC2100 devices (2003-05-21)

ES_LPC2194_01; Erratasheet LPC2194/01 (2007-07-27)

TN06004_LPC2000_ADC; LPC2000 ADC code example (2006-03-27)

TN06002_LPC2000_EINT; LPC2000 EINT dual edge interrupts (2006-02-22)

TN06005_LPC2000_I2C; LPC2000 I2C slave code example (2006-04-21)

TN06008_LPC2000_SPI; LPC2000 SPI slave code example (2006-06-16)

2194; LPC2194 Errata Sheet (2006-05-17)

UM10114; LPC21xx and LPC22xx User manual (2008-04-11)

MACC06001_LPC2000_SPI; LPC2xxx SPI master code example (2006-01-20)

MACC05007_LPC2000_UART; LPC2xxx UART transmitter code example (2005-09-19)

web; LPCZone Training Video - NTRU Encryption Overview training (2008-01-06)

75016725; Microcontroller Brochure - April 2009 (2009-04-04)

75016669; Microcontroller Line Card - April 2009 (2009-04-04)

Parametrics/similar products

Similar products
LPC2194 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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Disclaimers

• General product disclaimer
• Quality and reliability disclaimer