PROM
UT28F256QLE 5V 256K PROM
- Organization
- 32K × 8; 256 Kb
- Maximum address access
- 45 ns at −55°C to +125°C
- Supply voltage
- 5.0 V ±10%
Specifications
| Part Number | UT28F256QLE |
|---|---|
| Flight Grade | QML-Q, QML-V |
| LET (MeV·cm²/mg) | ≤110 |
| TID krad(Si) | 1000 |
| Density | 256K |
| Configuration | 32K x 8 |
| Access Time | 45ns |
| Supply Voltage | +5V |
| Package | 28-lead FP |
Technical specifications
| Specification | Value | Notes |
|---|---|---|
| Organization | 32K × 8; 256 Kb | |
| Maximum address access | 45 ns at −55°C to +125°C | |
| Supply voltage | 5.0 V ±10% | |
| Package | 28-lead flatpack; 50 mil lead centers | |
| Radiation-assurance range | 100 krad to 1Mrad(Si) | Family ordering range only; confirm SMD device-type and temperature restrictions before selecting assurance. |
| SEL characterization | ≥110 MeV·cm²/mg |
Values are subject to the conditions and ordering options in the referenced product documentation.
Product overview
The UT28F256QLE is a 256 Kb radiation-hardened one-time-programmable memory organized as 32K × 8. Its asynchronous interface requires no external clock or timing strobe and provides 45 ns maximum address-access time. The device uses redundant ViaLink PROM technology and is supported by industry-standard programmers. A three-state data bus supports system interfacing, while the 28-lead flatpack provides a ceramic package option. The 5.0 V ±10% supply distinguishes this part from the companion voltage variant. QML and radiation-assurance options are selected through the applicable SMD ordering information, and programming should follow the QLE programming guide and notes.
Documentation
Technical documents and resources
For product questions or additional technical information, contact Frontgrade https://www.frontgrade.com/contact-us-form.
Datasheet
Application Notes
Memory Power Calculator
IBIS Models
More about this product
Product features
- One-time-programmable 32K × 8 memory
- Fully asynchronous operation without external clock or timing strobes
- Three-state data bus
- No post-program conditioning required
Asynchronous boot storage
The PROM can hold fixed boot code without an external memory clock. Industry-standard programming support and the QLE programming documentation define the programming workflow.
Select the correct voltage variant
UT28F256QLE uses a 5.0 V ±10% supply. Check the supply and input/output requirements when selecting between the 3.3 V and 5 V PROM variants.
Applications
- Boot-code storage for microcontrollers and microprocessors
Discuss your application
Contact Frontgrade to discuss UT28F256QLE 5V 256K PROM and the requirements of your application.