LM3S5B91-IBZ80-C5 Texas Instruments Integrated Circuit (BGA) In Stock
LM3S5B91-IBZ80-C5 is a Texas Instruments Stellaris 32-bit ARM Cortex-M3 microcontroller in a 108-pin BGA package, running up to 16.384 MHz with integrated ADC, DMA, and JTAG boundary scan for embedded control.
- Manufacturer
- Texas Instruments
- Package
- BGA
- Pin Count
- 108
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S5B91-IBZ80-C5 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3S5B91-IBZ80-C5?
- 32-bit ARM Cortex-M3 CPU core running up to 16.384 MHz, delivering deterministic real-time control performance
- Integrated multi-channel ADC and DMA controller reducing CPU load for data acquisition and peripheral management
- 108-pin BGA package with JTAG boundary scan support for high-density designs and in-system debug and test
What is LM3S5B91-IBZ80-C5 used for?
The LM3S5B91-IBZ80-C5 is designed for industrial control, building automation, and networked embedded systems that require a 32-bit Cortex-M3 processor with integrated analog and DMA capabilities. Its 108-ball BGA package enables high-density PCB layouts for applications such as motor controllers, smart sensors, and energy management gateways. The JTAG boundary scan interface simplifies manufacturing test and in-system firmware updates in production environments.
What are the specifications of LM3S5B91-IBZ80-C5?
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M3 |
| Clock Frequency-Max | 16.384MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| JESD-30 Code | S-PBGA-B108 |
| JESD-609 Code | e1 |
| Number of I/O Lines | 72 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA108,12X12,32 |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 98304 |
| ROM (words) | 262144 |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Current-Max | 129mA |
| Supply Voltage-Max | 1.365V |
| Supply Voltage-Min | 1.3V |
| Supply Voltage-Nom | 1.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN SILVER COPPER |
| Terminal Form | BALL |
| Terminal Pitch | 0.8mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.31.00.25 |
Where can I find the LM3S5B91-IBZ80-C5 datasheet?
LM3S5B91-IBZ80-C5 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S5B91-IBZ80-C5?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum operating frequency of the LM3S5B91-IBZ80-C5 and how does it affect control loop timing?
The LM3S5B91-IBZ80-C5 operates at a maximum clock frequency of 16.384 MHz. At this speed the 32-bit Cortex-M3 core can execute simple control loop iterations in under 1 µs, enabling deterministic response times in motor control or process automation applications.
How does the integrated DMA controller in the LM3S5B91-IBZ80-C5 benefit data acquisition tasks?
The LM3S5B91-IBZ80-C5 includes a DMA controller that transfers ADC samples or UART/SPI data to memory without CPU intervention. This allows the 16.384 MHz Cortex-M3 core to continue executing control algorithms while DMA independently moves blocks of 8-bit or 16-bit data, reducing latency and CPU overhead.
What package does the LM3S5B91-IBZ80-C5 use and what PCB routing considerations apply?
The LM3S5B91-IBZ80-C5 comes in a 108-ball PBGA (S-PBGA-B108) package. BGA routing typically requires via-in-pad or dog-bone via techniques on a 4-layer or 6-layer PCB to access inner balls, and a recommended land pattern with 0.5 mm or 0.8 mm ball pitch should be followed per TI's layout guidelines.
Is the LM3S5B91-IBZ80-C5 suitable for new designs, given its YTEOL status?
The LM3S5B91-IBZ80-C5 has a YTEOL value of 0, indicating it is at or near end-of-life. For new designs Texas Instruments recommends evaluating current Tiva C Series TM4C1xx or TM4C123xx Cortex-M4 devices, which offer higher clock speeds up to 80 MHz and enhanced peripheral sets.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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