LPC2141_42_44_46_48 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 5 — 12 August 2011 2 of 45
NXP Semiconductors
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
Multiple serial interfaces including two UARTs (16C550), two Fast I
2
C-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 s.
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.
3. Ordering information
3.1 Ordering options
[1] While the USB DMA is the primary user of the additional 8 kB RAM, this RAM is also accessible at any time by the CPU as a general
purpose RAM for data and code storage.
Table 1. Ordering information
Type number Package
Name Description Version
LPC2141FBD64 LQFP64 plastic low profile quad flat package; 64 leads;
body 10 10 1.4 mm
SOT314-2
LPC2142FBD64
LPC2144FBD64
LPC2146FBD64
LPC2148FBD64
Table 2. Ordering options
Type number Flash
memory
RAM Endpoint
USB RAM
ADC (channels
overall)
DAC Temperature
range
LPC2141FBD64 32 kB 8 kB 2 kB 1 (6 channels) - 40 C to +85 C
LPC2142FBD64 64 kB 16 kB 2 kB 1 (6 channels) 1 40 C to +85 C
LPC2144FBD64 128 kB 16 kB 2 kB 2 (14 channels) 1 40 C to +85 C
LPC2146FBD64 256 kB 32 kB + 8 kB shared with
USB DMA
[1]
2 kB 2 (14 channels) 1 40 C to +85 C
LPC2148FBD64 512 kB 32 kB + 8 kB shared with
USB DMA
[1]
2 kB 2 (14 channels) 1 40 C to +85 C
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