DS2251T-128-16#
Analog Devices Inc./Maxim Integrated
DS2251T-128-16#
Analog Devices Inc./Maxim Integrated
IC MCU 8BIT 128KB NVSRAM 72SIMM
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Product details
Analog Devices Inc./Maxim Integrated's DS2251T-128-16# delivers military-grade reliability in Embedded - Microcontrollers, developed for aerospace and defense applications where radiation tolerance and mission longevity are paramount.The 8051 core incorporates triple modular redundancy for SEU mitigation, achieving >99% single-event upset immunity in orbital radiation environments.A 8-Bit architecture with parity-protected data paths prevents silent data corruption, meeting MIL-STD-883G requirements for spaceborne electronics.When operating at 16MHz, the microcontroller maintains timing accuracy within 0.01% despite temperature variations from -55 C to 125 C, critical for navigation systems.The SIO, UART/USART interfaces implement Manchester encoding for noise-immune data transmission, ensuring reliable communication in high-EMI environments like radar installations.Power-Fail Reset, WDT include radiation-hardened timers and watchdog circuits that automatically recover from single-event functional interrupts within 10 s.With 32 MIL-STD-1553-compatible interfaces, the device can serve as a remote terminal in distributed avionics architectures without external transceivers.128KB (128K x 8) of TMR-protected storage accommodates flight control algorithms with full error detection and correction capabilities.The NVSRAM implementation uses SONOS technology that withstands 300krad total ionizing dose, exceeding space qualification requirements.The 4.5V ~ 5.5V range supports operation from unregulated spacecraft power buses with 100mV ripple, eliminating need for additional regulation stages.The External clock source incorporates automatic frequency compensation that maintains <1ppm/ C drift across the military temperature range.Qualified for 0°C ~ 70°C (TA), the device operates reliably in exoatmospheric conditions where thermal cycling extremes exceed commercial specifications.Surface Mount packaging uses AuSn die attach for superior thermal conductivity in vacuum environments, preventing die delamination during thermal transients.The 72-SIMM format provides hermetic sealing against moisture ingress, meeting MIL-PRF-38534 Class K requirements for high-reliability applications.Available in 72-SIMM, the microcontroller undergoes rigorous screening including burn-in and 100% electrical testing at temperature extremes.
Product Attributes
- Product Status: Obsolete
- Core Processor: 8051
- Core Size: 8-Bit
- Speed: 16MHz
- Connectivity: SIO, UART/USART
- Peripherals: Power-Fail Reset, WDT
- Number of I/O: 32
- Program Memory Size: 128KB (128K x 8)
- Program Memory Type: NVSRAM
- EEPROM Size: -
- RAM Size: -
- Voltage - Supply (Vcc/Vdd): 4.5V ~ 5.5V
- Data Converters: -
- Oscillator Type: External
- Operating Temperature: 0°C ~ 70°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 72-SIMM
- Supplier Device Package: 72-SIMM
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