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Microchip Technology AT88SC25616C-MJTG
- Part No.:
- AT88SC25616C-MJTG
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- M2 J, Smart Card Module (TWI)
- Description:
- IC SECURE MEMORY M2 J MODUL
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
AT88SC25616C-MJTG - 256-Kbit CryptoMemory TWI Module
AT88SC25616C-MJTG is a Microchip / Atmel CryptoMemory secure EEPROM with 256 Kbits of user memory in sixteen zones. The exact -MJTG ordering code denotes an M2 J smart-card-contact module configured for the synchronous two-wire interface, not ISO T=0 operation.
Verify the full suffix, module contact map, host two-wire protocol, and personalization of the supplied lot.
Overview
The device provides 32 Kbytes of user EEPROM in sixteen 2-Kbyte zones, plus a separate 2-Kbit configuration area. Programmable access rights, passwords, key storage, mutual authentication, encrypted checksums, and stream encryption support controlled nonvolatile storage. The -MJTG module is the two-wire-only ordering option.
Key Advantages
Sixteen user zones can have separate access rights.
Key sets and passwords support qualified device-host access policies.
The -MJTG suffix distinguishes this TWI-only contact module from ISO-capable -MJ.
Optional anti-tearing supports recovery from interrupted writes when configured correctly.
Feature Summary
Sixteen 16-Kbit zones provide 256 Kbits total, with single-byte or 128-byte page writing.
A 2-Kbit configuration region stores control and security information.
The manufacturer documents mutual authentication, encrypted checksum, stream encryption, and four key sets.
The exact TWI module uses synchronous two-wire operation; its reset contact is not connected.
Package & Footprint
The LCDChip registered package is M2 J, Smart Card Module (TWI). Microchip's ordering table identifies AT88SC25616C-MJTG as the M2 J TWI module. The summary specifies a 12.6 × 11.4 mm exposed-metal contact area and notes the excised module can be larger; use the controlled drawing for the final card-body fit.
- Confirm the contact drawing and orientation.
- Check the carrier or excised module dimensions.
- Match marking and full -MJTG suffix.
The local registered JPG is absent and its production URL returns HTTP 404. Keep this detail unpublished until a verified image is supplied.
Interface & Contacts
For the manufacturer's TWI module, C1 is VCC, C3 is SCL/CLK, C5 is GND, and C7 is SDA/IO. C2 (the reset position used on ISO modules) is not connected on the TWI variant; C4, C6, and C8 are also shown as not connected. Verify the controlled contact orientation and do not assume ISO T=0 behavior.
Key Specifications
| Family | CryptoMemory |
|---|---|
| User EEPROM | 256 Kbits (32 Kbytes) |
| User zones | Sixteen × 16 Kbits (2 Kbytes) |
| Write mode | Single byte or 128-byte page |
| Configuration area | 2 Kbits, separate from user memory |
| User OTP area | 37 bytes |
| Key/password area | 160 bytes |
| Authentication | 64-bit mutual-authentication protocol |
| Supply range | 2.7 V to 5.5 V |
| Module temperature | Commercial, 0°C to 70°C per ordering table |
| Two-wire interface | SCL/CLK and SDA/IO contacts |
| Two-wire compatibility | Up to 1.0 MHz under documented conditions |
| Write endurance | 100,000 cycles per manufacturer summary |
| Data retention | 10 years per manufacturer summary |
| Exact module | M2 J, Smart Card Module (TWI) |
Consult the controlled full specification for timing, write conditions, and security commands.
Replacement Considerations
The ISO-capable -MJ and TWI-only -MJTG variants have different interface behavior and contact assignments. Other CryptoMemory densities also differ in capacity and zone size. Compare host protocol, personalization, package drawing, voltage, temperature, and access policy; no unverified internal alternative link is added.
Manufacturer Information
Microchip's AT88SC25616C Summary Datasheet, DS5017KS–SMEM–08/09, specifies the user memory, TWI module contact map, exact -MJTG ordering code, reliability, and M2 dimensions. Check the latest manufacturer full specification and lifecycle guidance before qualification.
Applications
Store controlled records in a qualified contact module with a TWI host.
Assign separate protected zones to distinct data sets.
Provision keys and access rights through controlled manufacturing.
Integrate only where the synchronous two-wire mode is supported.
Quality & Authenticity
Check lot traceability, marking, contact finish, mechanical dimensions, electrical readout, and configured rights. Protect keys and passwords through controlled personalization and evaluate this mature cryptographic architecture against current threat requirements.
FAQ
Is -MJTG an ISO T=0 module?
No. The -MJTG order code is the TWI-only M2 J module.
Is C2 a reset input?
No. The TWI module contact table marks C2 not connected.
Is all EEPROM user memory?
No. The 256-Kbit user array is separate from the 2-Kbit configuration area.
Why is this page not published?
The registered production package JPG returns HTTP 404.
Engineering Notice
Verify the latest manufacturer-controlled full specification, exact -MJTG contact drawing, synchronous protocol, electrical limits, write and personalization procedure, and security architecture. Restore and visually inspect the production JPG before formal publication.
AT88SC25616C-MJTG Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoMemory®
- Package/Case:
- M2 J, Smart Card Module (TWI)
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Secure Memory
- Applications:
- Embedded, Smart Card
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- M2 - J Module (TWI)
- Grade:
- -
- Qualification:
- -
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