NXP Expands Lowest Cost ARM9 MCU Series

16th June 2009

ES Admin

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NXP Semiconductors has announced the expansion of its ARM9-based product portfolio with the addition of the LPC314x and LPC315x devices to the LPC31xx series. Built around a high-performance ARM926EJ processor core, the NXP LPC314x devices provide several new features over the LPC313x devices including an AES Decryption Engine and a secure One-Time-Programmable (OTP) memory. Running at 270MHz, the LPC314x also offer a 50 percent increase in speed over the LPC313x devices. The LPC315x devices run at 180MHz and further add a Stereo Audio CODEC, Power Supply Unit and a Battery Charger.

The LPC31xx series integrates a high speed (480 Mbps) USB 2.0 On-The-Go (OTG) and advanced power management capabilities enabling embedded designers to take advantage of higher performance, lower cost, power efficiency and smaller footprint in consumer, industrial, medical, communication and automotive infotainment markets.

The LPC314x consists of two devices: LPC3141 and LPC3143. The LPC3141 has a secure One-Time-Programmable (OTP) memory providing a unique ID, the ability to store secure keys/USB product ID and the option to access JTAG securely. The LPC3143 adds a 128-bit AES Decryption Engine to the LPC3141 providing a mechanism to boot securely from NAND Flash, SPI-Flash, SD/MMC, eMMC/eSD and Managed NAND devices.

Designed in 90nm process, the LPC314x devices feature a 270 MHz ARM926EJ core coupled with 16-KB data cache, 16-KB instruction cache and 192KB of on-chip SRAM. The LPC314x has an 8/16-bit SRAM and SDRAM External Bus Interface as well as a Memory Card Interface capable of supporting SDHC, MMC/SDIO, and CE-ATA peripherals. Serial interfaces include SPI/SSI, I2C, I2S, UART, PWM, and PCM (Pulse Code Modulation) interfaces. Rounding the feature set is a 10-bit A/D, general purpose timers, WDT and multiple GPIO. For those applications that require visual interaction, the LPC314x integrates a 4/8/16-bit 6800/8080 compatible LCD interface.

The LPC315x consists of two devices: LPC3152 and LPC3154. The LPC3152 adds a Stereo Audio CODEC with Class AB Headphone Amplifier, Power Supply Unit (PSU) and Li-Ion charger to the LPC3141 feature set allowing designers to maximize power savings without sacrificing performance or cost. The PSU allows the system to run directly from the battery voltage or the USB power voltage providing optimized supply voltages to power the rest of the system. The built-in charger allows a Li-Ion battery to be charged from the power supplied by a USB connection or by an AC adapter. The charger also monitors for battery voltage, charge current, battery and chip temperatures. A flexible Clock Generation Unit (CGU) provides dynamic clock gating and scaling to further optimize the system for low power.

The LPC3154 adds a 128-bit AES Decryption Engine to the LPC3152 providing a mechanism to boot securely from NAND Flash, SPI-Flash, SD/MMC, eMMC/eSD and Managed NAND devices.

“This extension to our industry’s lowest-cost LPC313x high-speed USB 2.0 OTG devices gives our customers a range of solutions for application-specific designs with higher performance and longer battery life,” said Geoff Lees, vice president and general manager, microcontroller product line, NXP Semiconductors. “As always, we are committed to offering our customers the broadest ARM MCU offering in the industry and further cementing our position as an ARM leader.”