DS2250-64-16

Analog Devices Inc./Maxim Integrated

General info

Part Number

DS2250-64-16

Manufacturer

Analog Devices Inc./Maxim Integrated

Description:

IC MCU 8BIT 64KB NVSRAM 40SIMM

Reference Price (USD)

$83.84000

500+

$83.0016

1000+

$82.1632

1500+

$81.3248

2000+

$80.4864

2500+

$79.648

Exquisite packaging

Discount

TT / Paypal / Credit Card / Western Union / Money Gram

DS2250-64-16

$83.84

Product details

The DS2250-64-16 by Analog Devices Inc./Maxim Integrated 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.Featuring 8051 technology with lockstep cores, this microcontroller detects processing errors within 50ns to meet CENELEC EN 50128 safety requirements.The 8-Bit architecture incorporates quadruple modular redundancy for all safety-critical calculations in railway interlocking systems.Operating at 16MHz, 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 Power-Fail Reset, WDT include vital relay drivers with continuous self-testing capabilities required for railway signaling equipment.32 fail-safe digital inputs incorporate galvanic isolation and continuous contact monitoring for track circuit interfaces.64KB (64K x 8) accommodates SIL4-certified application code with complete diversity between primary and secondary safety channels.The NVSRAM implementation includes periodic memory scrubbing that detects and corrects radiation-induced soft errors.The 4.75V ~ 5.25V range withstands 100V transients common in railway power distribution systems with 24V nominal supply.The External includes redundant clock sources with automatic switchover to maintain timing during oscillator failures.Rated for 0°C ~ 70°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 40-SIMM provides 8kV surge protection on all lines exposed to overhead catenary induction and lightning strikes.Available in 40-SIMM, the microcontroller includes complete safety documentation for railway certification processes.