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Microchip 256 kB EPROM 32-Pin PLCC Memory Chip AT27C256R-45JU
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Height | 3.37mm |
| Length | 11.5mm |
| Model | AT27C256R-45JU |
| Width | 14.3mm |
| Mount Type | Through Hole |
| Maximum Operating Temperature | 85°C |
| Package Type | PLCC |
| Minimum Operating Temperature | -40°C |
| Memory size | 256kB |
| Interface Type | Parallel |
| Pin Count | 32 |
| 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 32-Pin PLCC, AT27C256R-45JUBrand | Atmel |
Key Features
- 256 kB memory size suitable for various embedded applications.
- 32K x 8 bit organisation with a parallel interface for efficient data access.
- Maximum random access time of 45 ns ensuring fast read operations.
- One-time programmable OTP reprogramming technique without UV-erasable window.
- Through-hole mount type compatible with standard PCB layouts.
- Operating voltage range from 4.5 V minimum to 5.5 V maximum for stable performance.
- Wide operating temperature range from -40°C to 85°C for industrial environments.
- Compact PLCC package with 32 pins measuring 11.5 mm length, 14.3 mm width, and 3.37 mm height.
Product Description
Microchip AT27C256R-45JU is a 256 kB EPROM memory chip housed in a 32-pin PLCC package designed for embedded and industrial electronic applications. It provides reliable non-volatile storage with a one-time programmable (OTP) memory type, meaning it cannot be erased or reprogrammed after programming due to the absence of a UV erase window.
This memory chip features a 32K x 8 bit organisation and supports a parallel interface for fast data reading, with a maximum random access time of 45 ns. It operates on a supply voltage range from 4.5 V to 5.5 V, making it compatible with standard embedded power supplies.
The component is suitable for through-hole mounting, simplifying integration into printed circuit boards. The chip is designed to operate across a broad temperature range of -40°C to 85°C, making it ideal for industrial, commercial, and laboratory environments that require reliable data retention under varying environmental conditions.
The package dimensions are compact with a length of 11.5 mm, width of 14.3 mm, and height of 3.37 mm, offering easy accommodation into dense PCB layouts. The low supply current of 100 μA supports energy-efficient designs.
256 kB memory size suitable for embedded systems requiring fixed code storage. 32K x 8 bit organisation supports byte-wide data transactions. Parallel interface enables quick access to stored data. OTP reprogramming technique provides permanent programming without UV erasure.
Through-hole mount type for reliable mechanical connection on PCBs. Wide operating temperature range from -40°C to 85°C ensures durability. Compact 32-pin PLCC package with precise mechanical dimensions. Low supply current minimizes power consumption in operation.
Suitable for industrial, laboratory, and manufacturing applications. Compliance with no specific standards or automotive certifications.
This Microchip EPROM memory chip facilitates high-quality memory storage solutions for electronic design engineers working on industrial automation, embedded control systems, and other commercial electronics. Its reliability and stable electrical characteristics meet diverse application requirements.
For more high-quality semiconductor components, explore related products in the Memory Chips category on EnvMart.
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Frequently Asked Questions
The AT27C256R-45JU chip has a memory size of 256 kB.
The maximum random access time for this memory chip is 45 ns, allowing for fast read operations.
It operates within a voltage range of 4.5 V to 5.5 V, ensuring stable performance.
This memory chip comes in a PLCC package type with 32 pins.
The chip measures 11.5 mm in length, 14.3 mm in width, and 3.37 mm in height.
It can operate within a temperature range of -40°C to 85°C, suitable for industrial environments.
This model supports a parallel interface for efficient data access.
The memory organization is 32K x 8 bits, supporting byte-wide data transactions.
It utilizes a one-time programmable (OTP) reprogramming technique, meaning it cannot be erased or reprogrammed after initial programming.
The supply current for this memory chip is 100 μA, supporting energy-efficient designs.
Yes, it is designed for through-hole mounting, making it compatible with standard PCB layouts.
This memory chip is suitable for embedded systems requiring fixed code storage in industrial, laboratory, and manufacturing applications.
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