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LM3S815 Stellaris 微處理器
The Stellaris® LM3S815 microcontroller is based on the ARM® Cortex™-M3 controller core operating at up to 50 MHz, with 64 kB flash and 8 kB SRAM. The LM3S815 also features real-time industrial connectivity, with an SSI / SPI controller, an I2C interface, and 2 UARTs. The LM3S815 microcontroller also features advanced motion control features, including 6 motion-control PWM outputs with dead-band and 1 fault protection inputs for low-latency shutdown. The microcontroller also features intelligent analog capability, including 3 analog comparators and 2 channels of highly accurate 10-bit analog-to-digital conversion - with the ability to sample at speeds of 500K samples per second. Finally, the LM3S815 microcontroller provides a 24-bit systick timer, 3 32-bit or 6 16-bit general-purpose timers, a watchdog timer, a low drop-out voltage regulator so that only one supply voltage is required, brown-out reset, power-on reset controller, and up to 34 GPIOs.


LM3S815
Flash (KB) 64
RAM (KB) 8
StellarisWare in ROM No
Boot Loader in ROM 0
DMA 0
SafeRTOS 0
Max Speed (MHz) 50
Precision Oscillators No
Memory Protection Unit (MPU) Yes
Timers 4
RTC Yes
Watchdog Timers 1
Motion PWM 6
PWM Faults 1
Dead-Band Generator Yes
Capture Pins 6
QEI 0
EPI/EMIF No
Ethernet No
IEEE 1588 No
CAN 0
USB D, H/D, or OTG No
UART 2
UART Modem Status No
I2C 1
SSI/SPI 1
I2S No
ADC Units 1
ADC Channels 2
ADC Resolution (Bits) 10
ADC Sample Rate (kSPS) 500
ADC Ext Reference No
Internal Temp Sensor 1
Analog Comparators 3
Maximum 5-V Tolerant GPIOs 34
Dedicated 5-V Tolerant GPIOs 0
Digital Comparators 0
Battery-Backed Hibernation Module No
Internal LDO Voltage Regulator Yes
Active Current (mA) /Mhz pending
Standby Current (uA) pending
Operating Temperature Range (C) -40 to 105,-40 to 85
Pin/Package 48LQFP, 48VQFN
Package Area (mm2) 49
Approx. Price (US$) 2.75 | 1ku
LM3S815 特性
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
64 KB single-cycle flash and 8 KB single-cycle SRAM
0-34 GPIOs (depending on configuration) with programmable control for GPIO interrupts and pad configuration
ARM FiRM-compliant Watchdog Timer ; plus three 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 two analog input channels and a sample rate of 500 thousand samples/second
Two fully programmable 16C550-type UARTs
Synchronous Serial Interface (SSI), supporting operation for Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces
Inter-Integrated Circuit (I2C) Interface, providing Standard (100 Kbps) and Fast (400 Kbps) transmission and support for sending and receiving data as either a master or a slave
Three integrated analog comparators configurable for output to initiate an ADC sample sequence, drive an output pin or generate an interrupt
Three PWM generator blocks, each with one 16-bit counter, two PWM comparators, a PWM signal generator, a dead-band generator, and an interrupt/ADC-trigger selector
Industrial and extended temperature RoHS-compliant 48-pin LQFP and 48-pin QFN package
LM3S815 芯片訂購指南
器件 狀態 溫度 價格 封裝 | 引腳 封裝數量 | 封裝載體 絲印標記
LM3S815-EGZ50-C2 ACTIVE -40 to 105 2.90 | 1ku VQFN (RGZ) | 48
LM3S815-EGZ50-C2T ACTIVE -40 to 105 2.95 | 1ku VQFN (RGZ) | 48
LM3S815-EQN50-C2 ACTIVE -40 to 105 2.90 | 1ku LQFP (PT) | 48 250
LM3S815-EQN50-C2T ACTIVE -40 to 105 LQFP (PT) | 48 2000 | LARGE T&R
LM3S815-IGZ50-C2 ACTIVE -40 to 85 2.75 | 1ku VQFN (RGZ) | 48
LM3S815-IGZ50-C2T ACTIVE -40 to 85 2.80 | 1ku VQFN (RGZ) | 48
LM3S815-IQN50-C2 ACTIVE -40 to 85 2.75 | 1ku LQFP (PT) | 48 250
LM3S815-IQN50-C2T ACTIVE -40 to 85 2.80 | 1ku LQFP (PT) | 48 2000 | LARGE T&R