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Microchip 256 kB EPROM 28-Pin PDIP Memory Chip AT27C256R-70PU
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Height | 4.8mm |
| Length | 37.3mm |
| Model | AT27C256R-70PU |
| 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 | 70ns |
| Number of Words | 32k |
| Reprogramming Technique | OTP |
| Microchip 256kbit EPROM Chip 28-Pin PDIPBrand | Microchip |
Key Features
- Memory size of 256kB organized as 32K x 8 bits.
- Maximum random access time of 70 nanoseconds ensuring fast data retrieval.
- Operates with a supply voltage range of 4.5V to 5.5V.
- Temperature tolerance from -40°C to 85°C for reliable performance in harsh environments.
- Package type is a 28-pin PDIP suitable for standard PCB layouts.
- Reprogramming is one-time programmable (OTP) with no in-system programmability.
- Current consumption of 100 microamperes minimizes power use.
- This EPROM lacks an erasable window, making it non-erasable and permanently programmed.
Product Description
Microchip AT27C256R-70PU is a 256 kB EPROM memory chip presented in a 28-Pin PDIP package. It offers reliable, one-time programmable memory storage for electronic and industrial applications requiring non-volatile data retention.
Designed for through-hole mounting, the chip interfaces in parallel mode with a maximum random access time of 70ns, ensuring efficient data access speeds. The supply voltage ranges between 4.5V and 5.5V, with low power consumption of 100µA, optimized for energy-sensitive systems.
Operating temperatures from -40°C to 85°C make it suitable for use in demanding environments across automotive and industrial sectors, while its robust build excludes erasing capability due to the absence of a UV window, providing permanent and secure data storage.
The compact PDIP package measures 37.3mm in length, 13.9mm in width, and 4.8mm in height, facilitating easy integration into standard PCB designs. 256kB memory size organized as 32K x 8 bits with parallel interface. One-time programmable (OTP) reprogramming technique without in-system programmability.
Operating voltage range of 4.5V to 5.5V with 100μA supply current. Temperature range between -40°C and 85°C for reliability. 28-Pin PDIP package type for through-hole mounting. No erasure window; data is permanently programmed.
Ideal for industrial, electronic, and automotive applications where fixed memory programs are required with reliable data retention. Explore more memory chip solutions with Microchip products on EnvMart.
Explore more products in our Memory Chips category.
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Frequently Asked Questions
The AT27C256R-70PU has a memory size of 256 kB, organized as 32K x 8 bits.
The maximum random access time for this model is 70 nanoseconds, allowing for fast data retrieval.
It operates with a supply voltage range of 4.5V to 5.5V.
This model can operate in temperatures ranging from -40°C to 85°C, making it suitable for harsh environments.
It is packaged in a 28-pin PDIP format, which is suitable for standard PCB layouts.
The supply current for the AT27C256R-70PU is 100 microamperes, which helps minimize power usage.
The memory is one-time programmable (OTP) and does not support in-system programmability.
This memory chip uses a parallel interface for data communication.
The dimensions of this model are 37.3mm in length, 13.9mm in width, and 4.8mm in height.
It is designed for use in industrial, electronic, and automotive applications where non-volatile data retention is required.
The country of origin for this memory chip is India.
The AT27C256R-70PU has 8 bits per word.
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