M27C64A-10F1 STMicroelectronics Integrated Circuit (Dual-In-Line Packages) In Stock
The STMicroelectronics M27C64A-10F1 is a 64 Kbit (8K × 8) UV-erasable EPROM in a 28-pin DIP package with 100 ns access time and 5 V operation. Stores firmware for embedded controllers and legacy microprocessor systems. Available in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Dual-In-Line Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- M27C64A-10F1 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of M27C64A-10F1?
- 64 Kbit (8K × 8) UV-erasable EPROM with 100 ns access time supports fast code fetch on legacy 8-bit microprocessor bus architectures
- UV-erasable and reprogrammable design enables iterative firmware development prototyping; one-time programmable (OTP) variant supports cost-optimized production
- 28-pin ceramic DIP package (CDIP-T28) provides rugged hermetic protection for industrial, military, and long-lifecycle embedded system applications
What is M27C64A-10F1 used for?
The M27C64A-10F1 is used for firmware and look-up table storage in legacy embedded microprocessor systems, industrial controllers, and programmable test equipment requiring non-volatile 64 Kbit code storage at 100 ns access speed. Its UV-erasable design supports iterative development prototyping, while the one-time programmable (OTP) variant suits cost-optimized production. The 28-pin DIP package simplifies integration into existing through-hole PCB designs and breadboard prototypes.
What are the specifications of M27C64A-10F1?
| YTEOL | 0 |
| Access Time-Max | 100ns |
| I/O Type | COMMON |
| JESD-30 Code | R-CDIP-T28 |
| JESD-609 Code | e3 |
| Memory Density | 65536bit |
| Memory IC Type | UVPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 8192words |
| Number of Words Code | 8000 |
| Operating Mode | ASYNCHRONOUS |
| Organization | 8KX8 |
| Output Characteristics | 3-STATE |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | DIP28,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE, WINDOW |
| Parallel/Serial | PARALLEL |
| Programming Voltage | 12.5V |
| 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 | COMMERCIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| ## M27C64A-10F1 Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.61 |
Where can I find the M27C64A-10F1 datasheet?
M27C64A-10F1 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for M27C64A-10F1?
Compatible alternatives and drop-in replacements for M27C64A-10F1:
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Frequently Asked Questions
For a legacy 8-bit microcontroller ROM design, how does M27C64A-10F1's 100 ns access time align with typical bus timing requirements?
The M27C64A-10F1 provides 100 ns maximum access time from address valid to data output, compatible with 8-bit microprocessors running at 8 MHz or slower bus speeds. Its 64 Kbit (8K × 8) organization maps directly onto standard 8-bit data buses, enabling straightforward firmware storage without wait-state logic in most legacy embedded designs.
How is the M27C64A-10F1 erased and reprogrammed during iterative embedded firmware development?
The M27C64A-10F1 is erased by exposing its quartz window to UV light at approximately 253.7 nm wavelength for 15 to 20 minutes, resetting all 65536 bits to logic-1 state. A standard EPROM programmer then reprograms the 8K × 8 array at 12.5 V VPP programming voltage to load the updated firmware revision.
At what production volume does M27C64A-10F1 offer a cost advantage over mask ROM, and what role does the OTP variant play?
The M27C64A-10F1 suits low-to-mid volume production where design revisions may still occur; its 64 Kbit OTP variant avoids mask ROM's high non-recurring engineering fees while delivering 100 ns access time in the same 28-pin DIP footprint. Mask ROM typically becomes cost-effective only above 100,000 units per design.
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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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