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Microchip Technology AT88SC018-SU-CN
- Part No.:
- AT88SC018-SU-CN
- 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
AT88SC018-SU-CN - CryptoCompanion Host Security IC
AT88SC018-SU-CN is a Microchip / Atmel CryptoCompanion device for host-side security functions with CryptoMemory and CryptoRF products. This order code specifies the 8S1 SOIC, industrial-temperature bulk option shipped in the unlocked/confidential personalization state.
Microchip lists the AT88SC018 family as not recommended for new designs. Technical and ordering details follow the manufacturer's AT88SC018 complete data sheet, document 5277C.
Overview
The AT88SC018 stores host secrets and implements authentication, password and encryption functions for compatible CryptoMemory and CryptoRF systems. Its two-wire interface lets a host invoke security operations without exposing stored secrets to ordinary application firmware.
Key Advantages
Dedicated nonvolatile storage and security hardware reduce exposure of host-side authentication material.
Implements host functions used with compatible CryptoMemory and CryptoRF devices.
Supports challenges, message authentication codes, encryption and key management.
The CN option ships with Lock[1:0] = 10 for the unlocked/confidential provisioning flow.
Feature Summary
CryptoMemory / CryptoRF F2 functions, SHA-1 processing and 64-bit mutual authentication.
On-chip 4-Kbit EEPROM with access restrictions, host-key sets and configurable user data.
Two-wire serial interface, compatible with 5-V host signaling under the specified limits.
SU-CN identifies 8S1 SOIC, confidential unlocked state and bulk delivery.
Package & Footprint
Microchip's ordering table assigns AT88SC018-SU-CN to the 8S1, 0.150-inch-wide JEDEC SOIC, with bulk delivery. LCDChip registers it as 8-SOIC. Use the controlled 8S1 drawing and pin-one mark for final footprint approval.
- Confirm 8S1 body dimensions and pin-one orientation.
- Route the two-wire interface and supply decoupling per the data sheet.
- Verify bulk-pack handling and assembly orientation for the exact order code.
This generic JPG is not a device-specific pin diagram.
Pin Functions
The device provides two-wire serial clock and data, supply and ground connections in an 8-lead SOIC. Use the manufacturer's AT88SC018 pin diagram for exact pin numbers, signal direction, pull-up design and treatment of unused pins; do not transfer a CryptoMemory tag pinout to this host companion.
Key Specifications
| Device family | CryptoCompanion host security IC |
|---|---|
| Paired products | Compatible CryptoMemory and CryptoRF devices |
| Supply range | 2.7 V to 3.6 V |
| Operating temperature | -40 C to +85 C, industrial |
| Host interface | Two-wire serial |
| EEPROM | 4 Kbits / 512 bytes on chip |
| Initial lock state | Lock[1:0] = 10, unlocked/confidential |
| Write endurance | 100,000 cycles |
| Data retention | 10 years |
| Package | 8S1 SOIC; registry 8-SOIC |
| Delivery form | Bulk |
Consult the manufacturer's complete electrical, command and memory-access tables before implementation.
Replacement Considerations
The CN and CM ordering variants are not interchangeable merely because they share a package. CN ships in the unlocked/confidential state, while CM ships in the ordinary unlocked state; their permitted personalization commands differ. Validate provisioning, paired-device protocol, host firmware, lock state and lifecycle before substitution. No unverified internal alternative link is asserted.
Manufacturer Information
AT88SC018 originated with Atmel and is documented by Microchip Technology in the CryptoCompanion complete data sheet. The manufacturer's ordering table explicitly distinguishes the CN confidential-unlocked option from CM and lists the non-T SU-CN order code as bulk delivery.
Applications
Provide host authentication for compatible CryptoMemory designs.
Keep host-side security material in dedicated companion hardware.
Use the confidential-unlocked flow when the manufacturing plan requires it.
Support established products with device-bound security credentials.
Quality & Authenticity
Verify the complete SU-CN ordering code, bulk-pack and lot labels, SOIC marking and actual manufacturing lock byte. Acceptance testing must also confirm expected keys and host/device pairing; exterior marking cannot establish personalization state.
FAQ
What does CN identify?
The CN variant ships with Lock[1:0] = 10, an unlocked/confidential state for secure personalization.
How is SU-CN supplied?
The non-T SU-CN order code is the bulk-delivery 8S1 SOIC option.
Can CM replace CN directly?
No. Initial memory-lock and personalization behavior differ, so the manufacturing flow must be checked.
Is this a new-design recommendation?
No. Microchip lists the AT88SC018 family as not recommended for new designs.
Engineering Notice
Use the latest Microchip AT88SC018 complete data sheet, notices and 8S1 package drawing for schematic, firmware, provisioning and production approval. Security depends on the complete host/tag protocol, secret handling and irreversible lock procedure; this page does not replace a system-level review.
AT88SC018-SU-CN Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoCompanion™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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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