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Microchip Technology AT88SC118-SH-CN-T
- Part No.:
- AT88SC118-SH-CN-T
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Description:
- IC SECURITY COMPANION CHIP 8SOIC
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
AT88SC118-SH-CN-T - CryptoCompanion Security IC
AT88SC118-SH-CN-T from Microchip Technology is an 8-SOIC CryptoCompanion host-side security IC for CryptoMemory and CryptoRF products. The CN-T ordering option is supplied on tape and reel with the manufacturer-defined 10 (Unlocked/Confidential) memory-locking configuration.
Technical details and the exact CN-T ordering option are checked against Microchip's AT88SC118 complete and summary data sheets.
Overview
The AT88SC118 CryptoCompanion device helps a host implement authentication and key-management functions for Atmel/Microchip CryptoMemory and CryptoRF systems. It securely stores host secrets, performs host-side cryptographic operations, and can verify host firmware digests. The host communicates with the IC over a two-wire serial interface.
Key Advantages
Stores diversified host keys and passwords in nonvolatile protected memory.
Implements challenge generation, response verification and message authentication functions.
Includes a random-number generator, voltage and frequency monitors, and delay penalties.
The manufacturer's CN-T tape-and-reel ordering code specifies memory-locking code 10 (Unlocked/Confidential).
Feature Summary
CryptoMemory/CryptoRF F2, SHA-1 and licensed 64-bit mutual-authentication functions as described by the data sheet.
Two-wire serial interface, with 5 V compatible interface pins under specified conditions.
Up to 16 diversified 64-bit host-key sets and eight sets of two 24-bit passwords.
8-lead 0.150-inch JEDEC SOIC; AT88SC118-SH-CN-T is the tape-and-reel order option.
Package & Footprint
Microchip identifies the AT88SC118-SH-CN-T ordering code as an 8S1, 8-lead, 0.150-inch-wide plastic gull-wing SOIC. The LCDChip canonical package label is 8-SOIC. Use the manufacturer's controlled 8S1 package drawing for land-pattern dimensions.
- Confirm pin 1 orientation against the official SOIC top view.
- Decouple VCC and route the two-wire interface to the host.
- Connect the manufacturer's NC pins as instructed in its data sheet.
The JPG is a generic package illustration, not the AT88SC118 pin diagram.
Pin Functions
The AT88SC118 complete data sheet assigns the following 8-lead SOIC pins.
Check the latest manufacturer pinout and electrical tables before schematic release.
Key Specifications
| Product role | Host-side CryptoCompanion security IC |
|---|---|
| Compatible product families | CryptoMemory and CryptoRF, subject to protocol design |
| Supply voltage | 2.7 V to 3.6 V |
| Host interface | Two-wire serial, 5 V compatible under specified conditions |
| Cryptographic functions | F2, SHA-1 and 64-bit mutual-authentication protocol |
| Host key capacity | Up to 16 sets of diversified 64-bit keys |
| Password capacity | Eight sets of two 24-bit passwords |
| User data area | Up to 232 bytes, read/write configurable |
| Endurance | 100,000 cycles, per manufacturer data sheet |
| Data retention | 10 years, per manufacturer data sheet |
| Operating temperature | -40 C to +85 C |
| Package | 8S1, 8-lead 0.150-inch SOIC |
| CN memory-locking option | 10 (Unlocked/Confidential), tape-and-reel packaging |
Security properties and endurance apply under the manufacturer's operating and provisioning conditions.
Replacement Considerations
AT88SC118-SH-CM and AT88SC118-SH-CN are related ordering options, but CM uses a different memory-locking code and CN uses bulk delivery media. A change requires review of provisioning, key state, 8S1 package, two-wire timing, firmware commands and lifecycle status. No unconditional drop-in replacement is asserted.
Manufacturer Information
AT88SC118 originated with Atmel and is documented by Microchip Technology. Microchip currently labels the product not recommended for new designs; verify lifecycle plans before using it in a new platform.
Applications
Host-side authentication of paired CryptoMemory or CryptoRF devices.
Control access to host credentials and application configuration.
Use supported digest verification within a larger secure-startup design.
Maintain products already designed around the AT88SC118 provisioning flow.
Quality & Authenticity
Confirm the exact CN code, factory locking state, date/lot traceability and package marking before secure personalization. Protect host secrets and production programming procedures; the IC alone does not establish system-level security.
FAQ
How does the CN option differ from CM?
The Microchip ordering table identifies CN as memory-locking code 10 (Unlocked/Confidential), versus code 00 (Unlocked) for CM.
Is this an RF tag?
No. It is a host-side CryptoCompanion device used with supported CryptoMemory and CryptoRF products.
Which pins form the serial interface?
SDA is pin 5 and SCL is pin 6 in the 8-lead SOIC package.
Can the NC pins float?
The complete manufacturer data sheet instructs connecting pins 3 and 7 to PCB ground.
Engineering Notice
Use the latest Microchip complete data sheet, summary ordering table and package drawing for design approval. Confirm CN personalization state and long-term supply strategy; Microchip lists AT88SC118 as not recommended for new designs.
AT88SC118-SH-CN-T Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoCompanion™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Security Companion Chip
- Applications:
- Networking and Communications
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
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