AT89S51-24AI
Microchip Technology
AT89S51-24AI
Microchip Technology
IC MCU 8BIT 4KB FLASH 44TQFP
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Product details
Microchip Technology's AT89S51-24AI delivers military-grade security in Embedded - Microcontrollers, designed for cryptographic applications and secure authentication systems. Its tamper-resistant architecture makes it ideal for hardware security modules and payment terminals.The 8051 incorporates dedicated cryptographic accelerators that perform AES-256 encryption in just 12 clock cycles with constant-time execution.With 8-Bit secure execution environments, the device maintains complete isolation between trusted and untrusted code execution domains.Operating at 24MHz, the microcontroller performs elliptic curve point multiplication in under 1ms, enabling rapid secure session establishment.The UART/USART interfaces include hardware-enforced protocol filtering that prevents side-channel attacks on communication channels.Integrated WDT feature true random number generators with NIST SP 800-90B compliance for cryptographic key generation.32 protected interfaces include voltage and frequency monitors that detect tampering attempts on physical connections.4KB (4K x 8) secure storage accommodates FIPS 140-2 Level 3 compliant firmware with integrity protection and anti-rollback features.The FLASH implementation uses one-time-programmable sectors for secure boot code that cannot be modified after deployment.128 x 8 of zeroizable memory instantly erases sensitive data when tamper detection triggers, meeting Common Criteria EAL6+ requirements.The 4V ~ 5.5V range includes active voltage tamper detection that triggers immediate memory erasure during glitching attempts.The Internal includes frequency drift detection that identifies clock glitching attempts with 100ns resolution.Rated for -40°C ~ 85°C (TA), the device maintains security features even under extreme environmental stress testing.Surface Mount packaging incorporates mesh shields that detect physical intrusion attempts with 10 m resolution.The 44-TQFP uses epoxy resin that becomes conductive upon drilling, triggering immediate zeroization of all secure data.Available in 44-TQFP (10x10), the microcontroller undergoes extensive fault injection testing to verify tamper resistance.
Product Attributes
- Product Status: Obsolete
- Core Processor: 8051
- Core Size: 8-Bit
- Speed: 24MHz
- Connectivity: UART/USART
- Peripherals: WDT
- Number of I/O: 32
- Program Memory Size: 4KB (4K x 8)
- Program Memory Type: FLASH
- EEPROM Size: -
- RAM Size: 128 x 8
- Voltage - Supply (Vcc/Vdd): 4V ~ 5.5V
- Data Converters: -
- Oscillator Type: Internal
- Operating Temperature: -40°C ~ 85°C (TA)
- Mounting Type: Surface Mount
- Package / Case: 44-TQFP
- Supplier Device Package: 44-TQFP (10x10)
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