Microchip Technology AT88SC25616C-SU

The AT88SC25616C combines nonvolatile user storage with configurable zone access rights, authentication and encrypted communication for established embedded and smart-card designs. Sixteen user zones may be protected independently or organized as larger files when their security conditions match. The SOIC device communicates through a synchronous two-wire serial interface.

Microchip's ordering table maps AT88SC25616C-SU to the 8S1 JEDEC SOIC: eight leads, 0.150-inch nominal body width, industrial-temperature and green-compliant option. LCDChip registers it as 8-SOIC (0.154", 3.90 mm width). Verify the controlled 8S1 drawing and pin-one mark for layout approval.

Layout checks

• Confirm the 8S1 land pattern and orientation.
• Route SCL and SDA with the host's required pull-ups.
• Review supply decoupling and board-level ESD protection.

This generic JPG is not a device-specific pin diagram.

For the 8-lead SOIC configuration, the manufacturer assigns pin 8 to VCC, pin 4 to GND, pin 6 to SCL and pin 5 to bidirectional SDA. Pins 1–3 and 7 have no internal connection. Do not substitute smart-card module contact assignments for this SOIC pinout; check the controlled package drawing before board release.

Use the controlled manufacturer specification for command timing, security setup and electrical limits.

A standard two-wire EEPROM or another CryptoMemory density is not an automatic substitute. Compare user-zone mapping, authentication and password provisioning, host commands, supply range, temperature qualification and package. No unverified internal alternative link is asserted.

Microchip-hosted AT88SC25616C summary data sheet, Atmel document 5017KS, and the current CryptoMemory full specification DS40002661A specify the exact -SU order code, SOIC pinout, memory organization, security functions, electrical ratings and 8S1 package. Microchip's current product page identifies the family as not recommended for new designs; use the full CryptoMemory specification for detailed host commands.

Confirm the complete AT88SC25616C-SU order code, 8S1 package markings, lot and traceability records. Controlled acceptance testing should verify the intended memory map and security personalization; package marking alone cannot establish stored keys or access rights.

Use the current Microchip summary and full CryptoMemory specifications, errata and controlled 8S1 package drawing for final schematic, firmware, provisioning and production approval. Security depends on correct key handling and host verification; this page is not a system-level security certification.