Medical & Healthcare
Critical Medical Records
Preserve finalized medical information in a protected state where unauthorized modification must be restricted.
Read-Only Data Protection
X-PHYTrustROM Series
Read-Only Mode • Password-Controlled Write Access • microSD / SD / USB
X-PHY TrustROM is a removable-storage security family designed to preserve the authenticity of critical data by restricting modification after Read-Only Mode is activated.
Unauthorized Modification
Problem
Critical files stored on writable removable media can be altered after they have been approved or distributed.
File Deletion
Problem
Important records can be removed from conventional writable storage, breaking the continuity of trusted information.
Data Overwrite
Problem
Existing files can be replaced by new data, making it difficult to preserve the original stored version.
Loss of Authenticity
Problem
Once protected information is changed, organizations may no longer have confidence that the stored file remains authentic.
Uncontrolled Write Access
Problem
Standard writable storage does not provide a password-controlled boundary for restoring write permissions to authorized users.
Key Advantages
Why X-PHY TrustROM?
Controlled Read-Only Protection
Read-Only Data Protection
Activate Read-Only Mode to make stored files readable while preventing ordinary modification, deletion and overwrite operations.
Password-Controlled Write Access
Write access can be restored only through the security tool using the correct password.
Automatic Protection Return
After the host is powered off or the device is reinserted, TrustROM automatically returns to Read-Only Mode.
3D pSLC Memory Cards
TrustROM SD and microSD use 3D pSLC, which provides better performance and endurance than 3D TLC according to the datasheets.
Flexible Form Factors
Deploy the same TrustROM concept across microSD, SD and USB storage formats for different host environments.
Security Architecture
Read-Only Access Control
TrustROM separates normal data reading from authorized write operations through a controlled password and software-tool workflow.
How It Works
Protect data through a controlled Read-Only workflow.
TrustROM uses a four-step operating process that keeps everyday reading simple while reserving write access for authorized users.
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01Enable Read-Only Mode
Start from Normal Mode, open the TrustROM software tool and set the password to activate Read-Only Mode.
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02
Eject & Reinsert
Eject and reinsert the storage device after the password and Read-Only setting have been applied.
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03
Read Normally
Access stored files for reading while Read-Only Mode prevents changes, deletion and overwrite.
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04
Authorize Write Access
Use the security tool with the correct password on an authorized host when write access is required. After power-off or reinsertion, the device returns to Read-Only Mode.
View Detailed Workflow
Core Capabilities
Storage functions built for reliable operation.
Beyond Read-Only control, TrustROM includes storage-management functions designed to support dependable data operation.
Data Encryption
Supports data encryption as part of the TrustROM storage feature set.
Auto Read Refreshment
Supports automatic read refreshment for maintaining stored-data operation.
Read Disturbance Management
Includes management for read-disturbance conditions within the storage media.
Adaptive Wear Leveling
Distributes flash usage through adaptive wear-leveling support.
Sudden Power-Fail Management
Includes management features for unexpected power-loss conditions.
SMART Function Support
Supports SMART functionality for storage-device monitoring.
Use Case
Where X-PHY TrustROM Delivers Value
Financial Institutes
Trusted Financial Records
Maintain finalized financial information without exposing approved records to routine deletion, overwrite or alteration.
Business Organizations
Controlled Reference Data
Distribute approved business files that remain readable while write access stays under deliberate authorization.
Cybersecurity
Security-Critical Files
Maintain trusted security information in a protected state until an authorized update is intentionally required.
Ideal for environments where data authenticity is critical and write access must remain tightly controlled.
microSD / SD / USB
Form Factors
3D pSLC / MLC
Flash Type
16GB – 128GB
SD / microSD Capacity
8GB – 32GB
USB Capacity
More than 3,000,000 hours
MTBF
Up to 88 MB/s
SD / microSD Sequential Read
27.3 MB/s
USB Sequential Read
Up to 69 MB/s
SD / microSD Sequential Write
20.6 MB/s
USB Sequential Write
−40°C ~ 85°C
Diamond Operating Temperature
Supported
SMART Function
TrustROM Series
Choose Your X-PHY TrustROM Format
Select the storage format and capacity range that matches your host interface and deployment requirements.
SD / microSD
Capacity
SD and microSD support SD System Specification 6.1 and SD SPI Mode.
X-PHY TrustROM
Find the Right TrustROMfor Your Deployment
Choose the form factor, capacity and operating specification that best matches your storage environment.
