M27C1001-45F1 STMicroelectronics Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
STMicroelectronics M27C1001-45F1 is a 1 Mbit UV-erasable EPROM with 45 ns access time and 8-bit data width. Organized as 128K x 8, it operates from a 5 V supply in a 32-pin ceramic DIP package. Ideal for embedded firmware storage in industrial control, automotive systems, and legacy equipment.
- Manufacturer
- STMicroelectronics
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 32
- Lifecycle
- OBSOLETE
- Datasheet
- M27C1001-45F1 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 M27C1001-45F1?
- 1 Mbit (128K x 8) UVPROM memory organization
- 45 ns maximum access time for fast read performance
- 5 V single-supply operation
- 32-pin ceramic DIP package (CDIP-32) for through-hole assembly
- UV erasable for reprogramming during development
- Compatible with standard EPROM programming equipment
What is M27C1001-45F1 used for?
The M27C1001-45F1 is widely used for storing firmware and look-up tables in industrial controllers, embedded systems, and legacy electronic equipment where reprogrammable non-volatile memory is required. Its 45 ns access time makes it suitable for microprocessor-based designs operating at typical bus speeds in automotive, telecommunications, and defense applications.
What are the specifications of M27C1001-45F1?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Access Time-Max | 45ns |
| I/O Type | COMMON |
| JESD-30 Code | R-CDIP-T32 |
| JESD-609 Code | e3 |
| Memory Density | 1048576bit |
| Memory IC Type | UVPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Words | 131072words |
| Number of Words Code | 128000 |
| Operating Mode | ASYNCHRONOUS |
| Organization | 128KX8 |
| Output Characteristics | 3-STATE |
| Package Body Material | CERAMIC, METAL-SEALED COFIRED |
| Package Equivalence Code | DIP32,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE, WINDOW |
| Parallel/Serial | PARALLEL |
| 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 |
| Package | Ceramic 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 M27C1001-45F1 datasheet?
M27C1001-45F1 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for M27C1001-45F1?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How fast can the M27C1001-45F1 respond to a memory read cycle, and does it suit 8 MHz processor buses?
The M27C1001-45F1 has a maximum access time of 45 ns, which is fast enough to interface directly with most 8 MHz to 16 MHz microprocessor buses without wait states, making it suitable for embedded firmware storage in industrial and automotive designs.
What is the memory organization and capacity of the M27C1001-45F1 for firmware storage planning?
The M27C1001-45F1 is organized as 128K x 8 bits, providing 1 Mbit (131,072 bytes) of storage. This is sufficient for many embedded firmware images, boot loaders, and look-up tables in 8-bit microcontroller designs operating from a 5 V supply.
Is the M27C1001-45F1 RoHS compliant, and what are the compliance implications for new hardware designs?
The M27C1001-45F1 carries a JESD-609 code of e3, indicating it is lead-free and RoHS compliant. Designers specifying this ceramic DIP-32 package should confirm assembly process compatibility, as ceramic packages may require adjusted reflow or soldering profiles.
When would an engineer choose M27C1001-45F1 over a flash-based memory for a legacy board repair?
The M27C1001-45F1 is preferred as a drop-in replacement on legacy boards originally designed for 1 Mbit EPROM in a 32-pin ceramic DIP footprint, especially when the existing design uses 5 V logic and the UV-erase/reprogram cycle is acceptable for low-volume production or field service.
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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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