LPC2926FBD144: Arm9™ microcontroller with CAN, LIN, and USB
Overview
Features
Features
Main Features
- ARM968E-S processor running at frequencies of up to 125 MHz maximum.
- Multi-layer AHB system bus at 125 MHz with three separate layers.
- Dual-leader, 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.
- External Static Memory Controller (SMC) with eight memory banks; up to 32-bit data bus; up to 24-bit address bus.
- Up to 104 general-purpose I/O pins with programmable pull-up, pull-down, or bus keeper.
- Vectored Interrupt Controller (VIC) with 16 priority levels.
- Up to 16 level-sensitive external interrupt pins, including USB, CAN and LIN wake-up features.
- Configurable clock-out pin for driving external system clocks.
- Processor wake-up from power-down via external interrupt pins; CAN or LIN activity.
- Flexible Reset Generator Unit (RGU) able to control resets of individual modules.
- Second CGU (CGU1) with its own PLL generates a configurable clock output.
- Standard Arm® test and debug interface with real-time in-circuit emulator.
- Boundary-scan test supported.
- ETM/ETB debug functions with 8 kB of dedicated SRAM also accessible for application code and data storage.
- 144-pin LQFP package.
- -40 °C to +85 °C ambient operating temperature range.
On-chip memory
- Two Tightly Coupled Memories (TCM), 32 kB Instruction TCM (ITCM), 32 kB Data TCM (DTCM).
- Two separate internal Static RAM (SRAM) instances; 32 kB SRAM and 16 kB SRAM.
- 8 kB ETB SRAM also available for code execution and data.
- Up to 768 kB high-speed flash-program memory.
- 16 kB true EEPROM, byte-erasable and programmable.
Serial interfaces
- USB 2.0 full-speed device/OTG controller with dedicated DMA controller and on-chip device PHY.
- Two-channel CAN controller supporting FullCAN and extensive message filtering
- Two LIN leader 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 RS485/EIA-485 (9 bit) support.
- Three full-duplex Q-SPIs with four follower-select lines; 16 bits wide; 8 locations deep; Tx FIFO and Rx FIFO.
- Two I²C-bus interfaces.
Flexible Clock-Generation Unit (CGU0) able to control clock frequency of individual modules
- On-chip very low-power ring oscillator; fixed frequency of 0.4 MHz; always on to provide a Safe_Clock source for system monitoring.
- On-chip crystal oscillator with a recommended operating range from 10 MHz to 25 MHz. PLL input range 10 MHz to 25 MHz.
- On-chip PLL allows CPU operation up to a maximum CPU rate of 125 MHz.
- Generation of up to 11 base clocks.
- Seven fractional dividers.
Highly configurable system Power Management Unit (PMU)
- clock control of individual modules.
- allows minimization of system operating power consumption in any configuration.
Dual power supply
- CPU operating voltage: 1.8 V ± 5 %.
- I/O operating voltage: 2.7 V to 3.6 V; inputs tolerant up to 5.5 V.
Other peripherals
- One 10-bit ADC with 5.0 V measurement range and eight input channels with conversion times as low as 2.44 μs per channel.
- Two 10-bit ADCs, 8-channels each, with 3.3 V measurement range provide an additional 16 analog inputs with conversion times as low as 2.44 μs per channel. Each channel provides a compare function to minimize interrupts.
- Multiple trigger-start option for all ADCs: timer, PWM, other ADC, and external signal input.
- Four 32-bit timers each containing four capture-and-compare registers linked to I/Os.
- Four six-channel PWMs (Pulse-Width Modulators) with capture and trap functionality.
- Two dedicated 32-bit timers to schedule and synchronize PWM and ADC.
- Quadrature encoder interface that can monitor one external quadrature encoder.
- 32-bit watchdog with timer change protection, running on safe clock.
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