IC MCU 32BIT 256KB FLASH 100LQFP
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The Stellaris® LM3S2948 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 50 MHz, with 256 kB flash and 64 kB SRAM. The LM3S2948 also features real-time industrial connectivity, with 2 CAN controllers, 2 SSI / SPI controllers, an I2C interface, and 3 UARTs. The microcontroller also features intelligent analog capability, including 3 analog comparators and 8 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample at speeds of 1M samples per second. Finally, the LM3S2948 microcontroller provides a 24-bit systick timer, 4 32-bit or 8 16-bit general-purpose timers, a watchdog timer, a battery-backed hibernation module with RTC and 256 bytes of non-volatile state-saving memory, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 52 GPIOs.
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32-bit ARM® Cortex™-M3 50-MHz processor core with System Timer (SysTick), integrated Nested Vectored Interrupt Controller (NVIC), Memory Protection Unit (MPU), and Thumb-2 instruction set
Full-featured debug solution with debug access via JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller
256 KB single-cycle flash and 64 KB single-cycle SRAM
Lower-power battery-backed Hibernation module with Real-Time Clock
12-52 GPIOs (depending on configuration) with programmable control for GPIO interrupts and pad configuration
ARM FiRM-compliant Watchdog Timer ; plus four General-Purpose Timer Modules (GPTM), each of which provides two 16-bit timers/counters and can be configured to operate independently
10-bit Analog-to-Digital Converter (ADC) with eight analog input channels and a sample rate of one million samples/second
Three fully programmable 16C550-type UARTs with IrDA support
Two Synchronous Serial Interface (SSI) modules, supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces
Inter-Integrated Circuit (IC) Interface, providing Standard (100 Kbps) and Fast (400 Kbps) transmission and support for sending and receiving data as either a master or a slave
Two Controller Area Network (CAN) Interface modules using CAN protocol version 2.0 part A/B and with bit rates up to 1 Mbps
Three integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt
Industrial and extended temperature RoHS-compliant 100-pin LQFP package and industrial-range RoHS-compliant 108-ball BGA package
Core Processor ARM Cortex M3
Speed 50MHz
Operating Temperature -40℃ ~ 85℃ (TA)
PWM (Ch) 0
Program Memory Type FLASH
Operating temperature range (°C) -40 to 105, -40 to 85
RAM Size 64K x 8
Rating Catalog
Number of I/O 52
UART 3
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type Surface Mount
Oscillator Type Internal
Supplier Device Package 100-LQFP (14x14)
Number of I2Cs 1
Package / Case 100-LQFP
Number of GPIOs 52
Core Size 32-Bit
CAN (#) 2
Connectivity CANbus, I2C, IrDA, Microwire, SPI, SSI, UART/USART
Program Memory Size 256KB (256K x 8)
Data Converters A/D 8x10b
Voltage - Supply (Vcc/Vdd) 2.25V ~ 2.75V
Flash memory (kByte) 256
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