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LPC2921 Datasheet(PDF) 1 Page - NXP Semiconductors |
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LPC2921 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 84 page 1. General description The LPC2921/2923/2925 combine an ARM968E-S CPU core with two integrated TCM blocks operating at frequencies of up to 125 MHz, Full-speed USB 2.0 device controller, CAN and LIN, up to 40 kB SRAM, up to 512 kB flash memory, two 10-bit ADCs, and multiple serial and parallel interfaces in a single chip targeted at consumer, industrial, and communication markets. To optimize system power consumption, the LPC2921/2923/2925 has a very flexible Clock Generation Unit (CGU) that provides dynamic clock gating and scaling. 2. Features and benefits ARM968E-S processor running at frequencies of up to 125 MHz maximum. Multilayer AHB system bus at 125 MHz with four separate layers. On-chip memory: Two Tightly Coupled Memories (TCM), 16 kB Instruction (ITCM) and 16 kB Data TCM (DTCM). On the LPC2925, two separate internal Static RAM (SRAM) instances, 16 kB each. On the LPC2923 and LPC2921, one 16 kB SRAM block. 8 kB ETB SRAM, also usable for code execution and data. Up to 512 kB high-speed flash-program memory. 16 kB true EEPROM, byte-erasable/programmable. Dual-master, eight-channel GPDMA controller on the AHB multilayer matrix which can be used with the Serial Peripheral Interface (SPI) interfaces and the UARTs, as well as for memory-to-memory transfers including the TCM memories. Serial interfaces: USB 2.0 full-speed device controller with dedicated DMA controller and on-chip device PHY. Two-channel CAN controller supporting FullCAN and extensive message filtering. Two LIN master controllers with full hardware support for LIN communication. The LIN interface can be configured as UART to provide two additional UART interfaces. Two 550 UARTs with 16-byte Tx and Rx FIFO depths, DMA support, and RS-485/EIA-485 (9-bit) support. Three full-duplex Q-SPIs with four slave-select lines; 16 bits wide; 8 locations deep; Tx FIFO and Rx FIFO. Two I2C-bus interfaces. LPC2921/2923/2925 ARM9 microcontroller with CAN, LIN, and USB Rev. 03 — 14 April 2010 Product data sheet |
Similar Part No. - LPC2921 |
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Similar Description - LPC2921 |
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