M27C512-90F6 STMicroelectronics Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
STMicroelectronics M27C512-90F6 is a 512 Kbit UV-erasable EPROM in ceramic DIP-28 with 90 ns access time and 5 V supply. Ideal for firmware storage in industrial and legacy embedded systems. In stock globally.
- Manufacturer
- STMicroelectronics
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- M27C512-90F6 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 512 Kbit (64K × 8) UV-erasable EPROM with 90 ns max access time for fast firmware retrieval
- Ceramic DIP-28 package rated for extended temperature operation in harsh environments
- 5 V single-supply operation with low active current for efficient embedded system integration
- UV erase capability allows reprogramming for iterative firmware development and prototyping
Applications
M27C512-90F6 is used for storing firmware and lookup tables in industrial controllers, automotive ECUs, and legacy embedded systems requiring non-volatile 512 Kbit program memory. Its ceramic DIP-28 package and 90 ns access time make it suitable for radiation-tolerant and high-reliability military and aerospace designs. The UV-erase feature enables reuse during prototype iterations, reducing development costs.
Specifications
| YTEOL | 0 |
| Access Time-Max | 90ns |
| I/O Type | COMMON |
| JESD-30 Code | R-GDIP-T28 |
| Memory Density | 524288bit |
| Memory IC Type | UVPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 65536words |
| Number of Words Code | 64000 |
| Operating Mode | ASYNCHRONOUS |
| Organization | 64KX8 |
| Output Characteristics | 3-STATE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP28,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE, WINDOW |
| Parallel/Serial | PARALLEL |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Standby Current-Max | 0.0001A |
| Supply Current-Max | 0.03mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.61 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 90 ns access time of M27C512-90F6 affect bus wait-state requirements?
The M27C512-90F6 has a maximum access time of 90 ns, allowing read cycles up to approximately 11 MHz on a synchronous bus without wait states. For slower microcontrollers running at 8 MHz or less, no additional wait states are needed, simplifying firmware retrieval from this 512 Kbit UV-EPROM.
In which embedded controller designs is M27C512-90F6 a suitable firmware storage device?
M27C512-90F6 fits embedded controllers using 8-bit or 16-bit processors requiring external 512 Kbit (64K × 8) program memory at 5 V. It is commonly used in industrial PLCs, legacy telecom equipment, military avionics, and automotive ECUs where ceramic DIP-28 packaging provides the mechanical durability needed for harsh environments.
What distinguishes M27C512-90F6 from M27C512-70F6 in timing and application suitability?
The M27C512-90F6 has a 90 ns maximum access time while the M27C512-70F6 is rated at 70 ns, making the 70F6 better for bus frequencies up to about 14 MHz without wait states. Both share the same 512 Kbit capacity and 5 V supply, but the 90 ns variant is typically lower cost and sufficient for microcontrollers clocked at 10 MHz or below.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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