LC87F0808AUQFPTLM-H
onsemi
LC87F0808AUQFPTLM-H
onsemi
IC MCU 8BIT 8KB FLASH 36QFP
Reference Price (USD)
1+
$1.49000
500+
$1.4751
1000+
$1.4602
1500+
$1.4453
2000+
$1.4304
2500+
$1.4155
Exquisite packaging
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LC87F0808AUQFPTLM-H
$1.49
Product details
The LC87F0808AUQFPTLM-H by onsemi pioneers ultra-reliable Embedded - Microcontrollers for railway signaling systems. Its fail-safe architecture and SIL4 certification make it the preferred choice for vital train control applications.The 8-Bit architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 20MHz, the device processes track occupancy data with deterministic latency below 100 s, crucial for moving block signaling systems.With SIO, UART/USART support, the microcontroller implements PROFIsafe and other railway-specific protocols with hardware-based CRC checking.Integrated LVD, POR, PWM, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.28 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.8KB (8K x 8) accommodates SIL4-certified application code with complete diversity between primary and secondary safety channels.The FLASH implementation includes periodic memory scrubbing that detects and corrects radiation-induced soft errors.256 x 8 of ECC-protected memory maintains data integrity even during severe electromagnetic disturbances in traction power environments.The 3.3V ~ 5.5V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.Safety-certified A/D 10x10b perform continuous self-calibration to maintain 0.1% accuracy in axle counter sensor interfaces.The Internal includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Rated for -40°C ~ 85°C (TA), the device operates reliably in trackside enclosures without climate control.Surface Mount packaging withstands 5g vibration and 50g shock loads specified in EN 61373 for rolling stock equipment.The 36-LQFP provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 36-QFP (7x7), the microcontroller includes complete safety documentation for railway certification processes.
Product Attributes
- Product Status: Not For New Designs
- Core Processor: -
- Core Size: 8-Bit
- Speed: 20MHz
- Connectivity: SIO, UART/USART
- Peripherals: LVD, POR, PWM, WDT
- Number of I/O: 28
- Program Memory Size: 8KB (8K x 8)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 256 x 8
- Voltage - Supply (Vcc/Vdd): 3.3V ~ 5.5V
- Data Converters: A/D 10x10b
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 36-LQFP
- Supplier Device Package: 36-QFP (7x7)
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