Microchip Technology AT88SC3216C-MJTG

AT88SC3216C belongs to the CryptoMemory family. It provides 32 Kbits (4 Kbytes) of user memory divided into sixteen 2-Kbit zones, together with a separate 2-Kbit configuration area. Programmable access rights, password and key storage, mutual authentication, encrypted checksums, and stream encryption support controlled use of the memory.

The LCDChip registered package is M2 J, Smart Card Module (TWI). This is a contact-card module designation, not the eight-lead SOIC, UDFN, PDIP, or TSSOP package also described for the device family. Match the physical contact pattern and exact -MJTG order code to Microchip's controlled module drawing before card-body or reader design.

Mechanical checks

• Verify the module dimensions and contact placement.
• Confirm reader-contact orientation and handling requirements.
• Compare the physical lot marking with the full ordering code.

The expected local JPG is absent and the production package URL returns HTTP 404. Keep this draft unpublished until a verified image is available.

The Microchip two-wire module contact map assigns C1 to VCC, C3 to SCL, C5 to GND, and C7 to SDA/IO; C2 is not the asynchronous reset input in this TWI-only option. The -MJTG module cannot be used for ISO 7816 T=0 transactions. Verify the controlled contact drawing and power-up sequence before connection.

Do not copy an ISO-module reset assignment onto this TWI-only part.

Use the full Microchip specification for timing, programming, reliability conditions, and exact -MJTG variant behavior.

Other CryptoMemory densities and plastic packages are not drop-in substitutes for this M2 J module. Capacity, zone count, access configuration, card contacts, protocol option, and personalization must all match. Verify the exact -MJTG ordering suffix and physical lot. No unverified internal product link is added.

Microchip's AT88SC3216C Summary Datasheet, Atmel-5204IS, July 2015, and CryptoMemory Low Density Full Specification, Atmel-8664I, July 2015, describe the memory organization, security mechanisms, interfaces, electrical range, and supported form factors. The current Microchip product page labels this family device not recommended for new designs; check lifecycle and support directly with the manufacturer for a new design.

Validate module dimensions, contact finish, markings, lot traceability, readout, and configured access rights. Establish a controlled personalization procedure for keys, passwords, zone permissions, and recovery policy. Older cryptographic mechanisms should be reviewed against the security requirements of the intended system; do not equate the device with a current secure element solely by product category.

Consult the latest Microchip full specification and module drawing for contact mapping, two-wire timing, personalization, security provisioning, and electrical limits. Verify the TWI-only ordering variant and restore the production JPG before formal publication.