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Texas Instruments LM3S1850-IBZ50-A2 — Microcontrollers & Processors (MCU / MPU / DSP)
Texas Instruments

LM3S1850-IBZ50-A2 Stellaris ARM Cortex-M3 MCU, 50 MHz, 256 KB Flash, NRND

MPNLM3S1850-IBZ50-A2
NRND

Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1850-IBZ50-A2, 32-bit single-core MCU, 50 MHz, 256 KB Flash, 32 KB SRAM, 56 I/O, 108-BGA (10x10 mm), -40°C to 85°C.

$20.4088Ref. price · indicative, final on quote
LM3S1850-IBZ50-A2 datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

LM3S1850-IBZ50-A2 Technical Specifications
ParameterValue
SeriesStellaris® ARM® Cortex®-M3S 1000
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.25V ~ 2.75V
Operating temperature-40°C~85°C(TA)
Speed50MHz
PackageTray
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Number of i (O)56
Core processorARM® Cortex®-M3
Case108-LFBGA
Program memory size256KB (256K x 8)

Product details

The Texas Instruments LM3S1850-IBZ50-A2 is a 32-bit ARM Cortex-M3 MCU from the Stellaris 1000 series, clocked at 50 MHz with 256 KB of Flash program memory and 32 KB of SRAM. It packs 56 general-purpose I/O lines and a connectivity set covering I²C, SPI, SSI, UART/USART, IrDA, Microwire, and a Quadrature Encoder Interface (QEI) for motor-feedback applications.

NRND — sourcing reality for this BOM line

108-BGA footprint and pin compatibility

The device comes in a 108-ball LFBGA package, 10x10 mm body. The 56 I/O are distributed across the ball grid.

Peripherals and connectivity set

Frequently asked questions

What is the recommended replacement for LM3S1850-IBZ50-A2?

No official replacement order code is listed in the lifecycle record. For pin-compatible alternatives within the Stellaris 1000 series sharing the 108-BGA footprint, review the LM3S family datasheet for density variants — but verify ball-map and peripheral compatibility before committing a board spin.

What is the package size and pin count for LM3S1850-IBZ50-A2?

The device is supplied in a 108-ball LFBGA package with a 10x10 mm body. It provides 56 general-purpose I/O pins.

What is LM3S1850-IBZ50-A2's listed speed?

The core runs at 50 MHz, delivering approximately 62.5 MIPS from the ARM Cortex-M3 pipeline.