60-MHz, 32-bit
microcontroller with
ARM7TDMI-S
™
core
LPC214x
ARM7-based microcontrollers
with full-speed USB 2.0
These powerful yet cost-effective microcontrollers offer USB 2.0 full-speed (12 Mbps) capability
and have up to 512 KB of ISP/IAP Flash and up to 40 KB of SRAM. Each has up to two 10-bit A/D
converters, a 10-bit D/A converter, two I
2
C-bus interfaces, and Fast I/O.
Key features
4
0-MHz, 32-bit ARM7TDMI-S with
6
AHB/APB interfaces
4
p to 512 KB of ISP/IAP Flash
U
4
p to 40 KB of SRAM
U
4
ery fast Flash programming via on-
V
chip boot loader
4
SB 2.0 full-speed (12 Mbps) device
U
4
p to two 10-bit A/D converters
U
4
0-bit D/A converter
1
4
ultiple serial interfaces: two I
2
C,
M
two UARTs, one SPI, and one SSP
4
wo 32-bit timers
T
4
eal-time clock and Watchdog timer
R
4
5 Fast I/O pins (5-V tolerant) with up
4
to 15-MHz switching rate
4
ingle 3.3-V supply
S
4
QFP64 package (10 x 10 x 1.4 mm)
L
Applications
4
utomotive entertainment
A
4
onnectivity
C
4
isplay
D
4
ommunications gateways and
C
protocol converters
4
oftware modems
S
4
oice recognition
V
4
ow-end imaging
L
The NXP microcontroller family LPC214x
uses a high-performance 32-bit ARM7
core that operates at up to 60 MHz.
Each device has up to 512 KB of on-chip
Flash and up to 40 KB of on-chip SRAM
memory.
In-System Programming (ISP) and In-
Application Programming (IAP) software
minimize programming time – each 256-
byte line takes only 1 ms to program,
and a single-sector or full-chip erase
takes only 400 ms.
A 128-bit-wide memory interface and
a patented memory accelerator enable
32-bit code execution from Flash with
zero wait-states. For applications where
code size is critical, an alternative 16-bit
Thumb mode reduces code by more
than 30% with minimal performance
penalties.
Each microcontroller in the family
includes a USB 2.0 full-speed (12 Mbps)
device that supports 32 endpoints with
2 KB of endpoint RAM. In the LPC2146
and the LPC2148, up to 8 KB of the RAM
can be used by the USB DMA. In all
the devices, the USB function supports
Control, Interrupt, Bulk, and Isochronous
data-transfer modes. Designers can
choose between GoodLink
™
and SoftConnect
™
functionality.
Each microcontroller is also equipped with up to two 10-bit
A/D converters and a 10-bit D/A converter.
Multiple serial communications interfaces increase design
flexibility, provide larger buffer size, and deliver higher
processing power. There are two 16C550 UARTs, two Fast
I
2
C-bus (400 kbps) interfaces, and two SPI interfaces (one with
capabilities for buffering and variable data length).
There are two 32-bit timers (each with four capture and
compare channels), a PWM unit with six outputs, a real-time
clock, and a Watchdog timer.
For debugging, each device supports real-time emulation
and embedded trace support and has an integrated vectored
interrupt controller (VIC). Also, for compatibility with existing
tools, each device uses the standard ARM test/debug JTAG
interface.
Other features include 45 Fast I/O pins (5-V tolerant) with
switching up to 15 MHz, and an operating temperature range
of -40 to 85 °C.
Third-Party Development Tools
Through third-party suppliers, we offer a range of
development tools for our microcontrollers. For the most
current listing, please visit www.nxp.com/microcontrollers.
Up to 512 KB of
128-bit-wide ISP/IAP Flash
E-ICE/RT interface and
embedded-trace macrocell
Vectored
interrupt controller
Up to 40 KB of SRAM
60-MHz, 32-bit ARM7TDMI-S core
with AHB and APB interfaces
Power management, 3.3-V supply,
real-time clock, Watchdog timer, PLL
Up to two 10-bit A/D converters
(up to 14 channels each)
Available 10-bit D/A converter
(one channel)
USB 2.0 full-speed
(12 Mbps device)
PWM unit
(six outputs)
Two 32-bit timers
(four capture/
compare channels each)
UART0
Two I
2
C
UART1
SPI, SSP
45 I/O ports
LPC214x block diagram
LPC214x selection guide
Memory
Type
LPC2141
LPC2142
LPC2144
LPC2146
LPC2148
Flash (KB)
32
64
128
256
512
SRAM (KB)
8
16
16
40
40
Serial interfaces
USB 2.0
(12 Mbps)
1
1
1
1
1
1
1
USB
DMA
IC
2
ADC/DAC options
UART
2
2
2
2
2
2
2
2
2
2
SPI/SSP
2
2
2
2
2
ADC channels
(10-bit)
6
6
14
14
14
1
1
1
1
DAC channels
(10-bit)
Package
LQFP64
LQFP64
LQFP64
LQFP64
LQFP64
www.nxp.com
© 2007 NXP N.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The
information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and
may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof
does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Date of release: January 2007
Document order number: 9397 750 15816
Printed in the USA
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