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Microchip 256 kB EPROM 28-Pin PDIP AT27C256R-45PU 4.5V to 5.5V Supply OTP Memory
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Height | 4.8mm |
| Length | 37.3mm |
| Model | AT27C256R-45PU |
| Width | 13.9mm |
| Mount Type | Through Hole |
| Maximum Operating Temperature | 85°C |
| Package Type | PDIP |
| Minimum Operating Temperature | -40°C |
| Memory size | 256kB |
| Interface Type | Parallel |
| Pin Count | 28 |
| Maximum Supply Voltage | 5.5V |
| Minimum Supply Voltage | 4.5V |
| Supply Current | 100μA |
| Organisation | 32K x 8 Bit |
| Number of Bits per Word | 8 |
| Maximum Random Access Time | 45ns |
| Number of Words | 32k |
| Reprogramming Technique | OTP |
| Microchip 256kbit EPROM Chip 28-Pin PDIPBrand | Microchip |
Key Features
- Memory size of 256 kB with 32K x 8 bit organisation supports reliable storage.
- Features a maximum random access time of 45ns for fast data retrieval.
- Operates with a supply voltage range of 4.5V to 5.5V ensuring compatibility with standard circuits.
- Supplies current of 100 μA ensures low power consumption in operation.
- Operates within a temperature range of -40°C to 85°C suitable for diverse environments.
- This OTP (One Time Programmable) EPROM cannot be erased or reprogrammed once programmed.
- Designed for through hole mount, facilitating easy PCB integration in applications.
- Not compliant with automotive standards and comes without any specific approvals or certifications.
Product Description
Microchip AT27C256R-45PU is a 256 kB Erasable Programmable Read-Only Memory (EPROM) device with a 28-pin PDIP package designed for electronic component applications requiring non-volatile data storage.
This memory chip operates on a supply voltage range of 4.5V to 5.5V, with a maximum random access time of 45ns, making it suitable for performance-critical embedded systems. It features a parallel interface type and 32k x 8 bit organisation, providing efficient parallel data programming and retrieval.
The OTP (One Time Programmable) design means the chip can be programmed once and does not support in-system programmability or erasing, ensuring data permanence for applications such as firmware storage and system configurations.
Its through hole mount type facilitates secure PCB assembly, and the PDIP packaging measures 37.3mm in length, 13.9mm in width, and 4.8mm in height, fitting standard DIP sockets. The device operates effectively in temperature ranges from -40°C to 85°C, suitable for industrial and commercial environments.
This EPROM exhibits a low supply current of 100 μA, contributing to power-conscious designs. It lacks automotive standard compliance and specific certifications, implying suitability primarily for general-purpose electronic and industrial applications.
Typical uses include industrial control systems, laboratory instrumentation, manufacturing equipment, and legacy computing systems where stable, non-volatile memory is essential. Memory size of 256 kB with 32K x 8 bit organisation supports reliable storage.
Maximum random access time of 45ns ensures responsive data access. Supply voltage range of 4.5V to 5.5V enables compatibility with common power sources. One Time Programmable (OTP) technology for permanent data storage. Through hole mounting for reliable PCB integration.
28-pin PDIP package with compact dimensions and standard pin count. Operating temperature from -40°C to 85°C suits diverse industrial environments. Low supply current of 100 μA reduces power consumption. Not suitable for automotive applications due to lack of standards compliance.
Explore more semiconductor memory solutions and related electronic components in the Microchip product range at EnvMart for your industrial and manufacturing needs.
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Frequently Asked Questions
The AT27C256R-45PU has a memory capacity of 256 kB, organized as 32K x 8 bits.
It features a maximum random access time of 45 ns, allowing for fast data retrieval.
This model operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with standard circuits.
The typical supply current for this EPROM is 100 μA, contributing to low power consumption during operation.
The AT27C256R-45PU is designed for through hole mounting, facilitating easy PCB integration.
This memory chip measures 37.3 mm in length, 13.9 mm in width, and 4.8 mm in height.
It operates effectively in a temperature range from -40°C to 85°C, suitable for various environments.
The interface type for the AT27C256R-45PU is parallel, allowing for efficient data programming and retrieval.
No, this EPROM is One Time Programmable (OTP), meaning it cannot be erased or reprogrammed once programmed.
This memory chip is suitable for applications such as firmware storage, system configurations, and industrial control systems.
No, this EPROM is not compliant with automotive standards and lacks specific certifications.
The AT27C256R-45PU supports 8 bits per word, which is standard for its organization.
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