20-07-2013, 03:37 PM
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
[attachment=56778]
General description
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
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 s per channel.
Architectural overview
The ARM7TDMI-S is a general purpose 32-bit microprocessor, which offers high
performance and very low power consumption. The ARM architecture is based on
Reduced Instruction Set Computer (RISC) principles, and the instruction set and related
decode mechanism are much simpler than those of microprogrammed Complex
Instruction Set Computers (CISC). This simplicity results in a high instruction throughput
and impressive real-time interrupt response from a small and cost-effective processor
core.
On-chip flash program memory
The LPC2141/42/44/46/48 incorporate a 32 kB, 64 kB, 128 kB, 256 kB and 512 kB flash
memory system respectively. This memory may be used for both code and data storage.
Programming of the flash memory may be accomplished in several ways. It may be
programmed In System via the serial port. The application program may also erase and/or
program the flash while the application is running, allowing a great degree of flexibility for
data storage field firmware upgrades, etc. Due to the architectural solution chosen for an
on-chip boot loader, flash memory available for user’s code on LPC2141/42/44/46/48 is
32 kB, 64 kB, 128 kB, 256 kB and 500 kB respectively.
Pin connect block
The pin connect block allows selected pins of the microcontroller to have more than one
function. Configuration registers control the multiplexers to allow connection between the
pin and the on chip peripherals. Peripherals should be connected to the appropriate pins
prior to being activated, and prior to any related interrupt(s) being enabled. Activity of any
enabled peripheral function that is not mapped to a related pin should be considered
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[attachment=56778]
General description
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
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 s per channel.
Architectural overview
The ARM7TDMI-S is a general purpose 32-bit microprocessor, which offers high
performance and very low power consumption. The ARM architecture is based on
Reduced Instruction Set Computer (RISC) principles, and the instruction set and related
decode mechanism are much simpler than those of microprogrammed Complex
Instruction Set Computers (CISC). This simplicity results in a high instruction throughput
and impressive real-time interrupt response from a small and cost-effective processor
core.
On-chip flash program memory
The LPC2141/42/44/46/48 incorporate a 32 kB, 64 kB, 128 kB, 256 kB and 512 kB flash
memory system respectively. This memory may be used for both code and data storage.
Programming of the flash memory may be accomplished in several ways. It may be
programmed In System via the serial port. The application program may also erase and/or
program the flash while the application is running, allowing a great degree of flexibility for
data storage field firmware upgrades, etc. Due to the architectural solution chosen for an
on-chip boot loader, flash memory available for user’s code on LPC2141/42/44/46/48 is
32 kB, 64 kB, 128 kB, 256 kB and 500 kB respectively.
Pin connect block
The pin connect block allows selected pins of the microcontroller to have more than one
function. Configuration registers control the multiplexers to allow connection between the
pin and the on chip peripherals. Peripherals should be connected to the appropriate pins
prior to being activated, and prior to any related interrupt(s) being enabled. Activity of any
enabled peripheral function that is not mapped to a related pin should be considered
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