Hello! now
tms@lcdchip.com
Analog Devices Inc./Maxim Integrated DS28C22Q+T
- Part No.:
- DS28C22Q+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- 8-WFDFN Exposed Pad
- Description:
- IC SECURITY MANAGER 8TDFN
- Quantity:
Unit Price:$2.89
Ext Price:$2.89
- Payment:
- Shipping:
Product Details
DS28C22Q+T - I2C SHA-256 Secure Memory
DS28C22Q+T from Analog Devices / Maxim Integrated is a DeepCover bidirectional secure-memory device with 3-Kbit user EEPROM in an 8-pin TDFN exposed-pad package on tape and reel.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
DS28C22 combines a hardware SHA-256 engine, protected 256-bit secret, encrypted read/write support, a unique 64-bit ROM ID and twelve EEPROM pages over I2C.
Key Advantages
Supports host-to-device and device-to-host authentication plus encrypted memory transfers.
Provides twelve independently protected 256-bit EEPROM pages and a factory-unique ROM ID.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
I2C SHA-256 secure memory
I2C at 100 kHz or 400 kHz
3.3 V +/-10%; -40 C to +85 C
8-WFDFN Exposed Pad
Package & Footprint
This ordering code uses the 8-WFDFN Exposed Pad package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Authentication | Bidirectional SHA-256 |
|---|---|
| User EEPROM | 3072 bits |
| Organization | 12 pages of 256 bits |
| Secret | 256-bit user-programmable |
| ROM ID | Unique factory-programmed 64-bit identifier |
| Interface | I2C |
| Bus rates | 100 kHz and 400 kHz |
| Supply | 3.3 V +/-10% |
| Sleep current | 0.5 uA typical |
| Temperature | -40 C to +85 C |
| Package | 8-TDFN, 2 mm x 3 mm |
| Ordering medium | Tape and reel |
Replacement Considerations
No exact DS28C22 package or order-code alternative was found in the local database. 1-Wire authenticators use a different host interface.
Manufacturer Information
Analog Devices lists DS28C22Q+T in production. Security integration requires a protected host key and reviewed provisioning flow.
Applications
Authenticates sensors, consumables and peripherals before enabling system features.
Protects configuration data and feature entitlements with authenticated EEPROM access.
Quality & Authenticity
Match the complete ordering code, package marking and reel or lot label to authorized-channel records. Inspect moisture handling and solderability requirements before assembly.
FAQ
What is the main function?
I2C SHA-256 secure memory
What package is used?
8-WFDFN Exposed Pad
Is a verified internal replacement available?
No exact internal replacement was verified. Review any candidate against the manufacturer documentation.
Is the package image ready?
No. The registered package JPG is currently missing.
Engineering Notice
Use the latest manufacturer documentation for schematic, PCB, thermal and production approval. Distributor attributes are useful for sourcing but do not replace the official data sheet.
DS28C22Q+T Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- DeepCover®
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Security Manager
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
- Grade:
- -
- Qualification:
- -
- Include Parts
- Popular Search
The following parts include "DS28C22Q+T" in Silicon Labs DS28C22Q+T.
- Part Number
- Manufacturer
- Package
- Description
- CAP200DG-TL Power Integrations 8-SOIC (0.154", 3.90mm Width) IC AUTOMATIC DISCHARGE 8SO
- ATSHA204A-MAHDA-T Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATSHA204A-SSHDA-T Microchip Technology 8-SOIC (0.154", 3.90mm Width) IC AUTHENTICATION CHIP 8SOIC
- ATSHA204A-STUCZ-T Microchip Technology TO-236-3, SC-59, SOT-23-3 IC AUTHENTICATION CHIP SOT23-3
- ATECC608B-MAHDA-T Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608B-MAHCZ-S Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608B-SSHDA-T Microchip Technology 8-SOIC (0.154", 3.90mm Width) IC AUTHENTICATION CHIP 8SOIC
- ATECC608B-MAHDA-S Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608A-MAHDA-S Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
- ATECC608B-MAVDA-T Microchip Technology 8-UFDFN Exposed Pad IC AUTHENTICATION CHIP 8UDFN
The following parts are popular search parts in Test and Measurement.
Inventory:6,356
Please send an inquiry. Send us your inquiry, and we will respond immediately.
In Stock:6,356
| Qty. | Unit Price | Ext. Price |
| 1+ | $2.89 | $2.89 |
| 10+ | $2.18 | $21.80 |
| 25+ | $2.00 | $50.00 |
| 100+ | $1.80 | $180.00 |
| 250+ | $1.71 | $427.50 |
| 500+ | $1.70 | $850.00 |
