Part Number: LM3S1R21-IQC80-C5T vs LM3S1439-IQC50-A2

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Part Number: LM3S1R21-IQC80-C5T LM3S1439-IQC50-A2
Manufacturer: Texas Instruments Texas Instruments
Description: IC MCU 32BIT 256KB FLASH 100LQFP 96KB 96K x 8 FLASH ARM® Cortex®-M3 32-Bit Microcontroller Stellaris® ARM® Cortex®-M3S 1000 Series LM3S1439 100 Pin 50MHz 2.5V 100-LQFP
Quantity Available: Available Available
Datasheets: LM3S1R21 -
Mount Surface Mount Surface Mount
Mounting Type Surface Mount Surface Mount
Package / Case 100-LQFP 100-LQFP
Number of Pins 100 100
Operating Temperature -40°C~85°C TA -40°C~85°C
Packaging Tape & Reel (TR) Tray
Series Stellaris® ARM® Cortex®-M3S 1000 Stellaris® ARM® Cortex®-M3S 1000
Part Status Obsolete Active
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours)
Number of Terminations 100 100
Subcategory Microcontrollers Microcontrollers
Technology CMOS CMOS
Terminal Position QUAD QUAD
Terminal Form GULL WING GULL WING
Peak Reflow Temperature (Cel) 260 260
Supply Voltage 3.3V 2.5V
Terminal Pitch 0.5mm -
Frequency 80MHz 50MHz
Base Part Number LM3S1R21 LM3S1439
Pin Count 100 100
Supply Voltage-Min (Vsup) 3V -
Interface EBI/EMI, I2C, IrDA, LIN, SPI, UART, USART I2C, IrDA, SPI, UART, USART
Memory Size 256kB 96kB
Oscillator Type Internal Internal
Number of I/O 67 52
RAM Size 48K x 8 32K x 8
Voltage - Supply (Vcc/Vdd) 1.08V~3.6V 2.25V~2.75V
uPs/uCs/Peripheral ICs Type MICROCONTROLLER MICROCONTROLLER, RISC
Number of Bits 10 10
Core Processor ARM® Cortex®-M3 ARM® Cortex®-M3
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type FLASH FLASH
Core Size 32-Bit 32-Bit
Program Memory Size 256KB 256K x 8 96KB 96K x 8
Connectivity EBI/EMI, I2C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART I2C, IrDA, Microwire, QEI, SPI, SSI, UART/USART
Bit Size 32 32
Data Converter A/D 8x10b A/D 4x10b
Watchdog Timer Yes Yes
Has ADC YES YES
DMA Channels YES NO
Data Bus Width 32b 32b
PWM Channels YES YES
DAC Channels NO NO
Number of Timers/Counters 4 5
Core Architecture ARM ARM
Number of A/D Converters 1 1
Number of UART Channels 3 2
Radiation Hardening No No
RoHS Status ROHS3 Compliant ROHS3 Compliant
Lead Free Contains Lead Lead Free
Lifecycle Status - NRND (Last Updated: 3 days ago)
Factory Lead Time - 16 Weeks
JESD-609 Code - e3
Pbfree Code - yes
Terminal Finish - Matte Tin (Sn)
Operating Supply Voltage - 3.3V
ROM (words) - 98304
CPU Family - CORTEX-M3
Boundary Scan - YES
Low Power Mode - YES
Format - FIXED-POINT
Integrated Cache - YES
Number of Serial I/Os - 5
Height - 1.6mm
Length - 14mm
Width - 14mm
Thickness - 1.4mm
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