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 Rev. 5 12 August 2011 Product data sheet 1. 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 2 device, multiple UARTs, SPI, SSP to I C-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. 2. 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 s 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.LPC2141/42/44/46/48 NXP Semiconductors Single-chip 16-bit/32-bit microcontrollers 2 Multiple serial interfaces including two UARTs (16C550), two Fast I 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 Table 1. Ordering information Type number Package Name Description Version LPC2141FBD64 LQFP64 plastic low profile quad flat package 64 leads SOT314-2 body 10 10 1.4 mm LPC2142FBD64 LPC2144FBD64 LPC2146FBD64 LPC2148FBD64 3.1 Ordering options Table 2. Ordering options Type number Flash RAM Endpoint ADC (channels DAC Temperature memory USB RAM overall) 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 2 kB 2 (14 channels) 1 40 C to +85 C LPC2146FBD64 256 kB 32 kB + 8 kB shared with 1 USB DMA LPC2148FBD64 512 kB 32 kB + 8 kB shared with 2 kB 2 (14 channels) 1 40 C to +85 C 1 USB DMA 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. 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