AT27C256R-70JU

The AT27C256R-70JU is a 256Kb, 70ns, CMOS EPROM. Equivalent products include:
1. Microchip AT27C256R-70PU
2. Intel 27C256
3. STMicroelectronics M27C256B-70F1
4. Texas Instruments TMS27C256-70JL
5. AMD AM27C256-70DC
These alternatives offer similar memory capacity and speed specifications, suitable for similar applications. Always verify pin compatibility and electrical characteristics before substituting.

The AT27C256R-70JU is a high-performance, low-power, 256-Kbit (32K x 8) one-time programmable (OTP) read-only memory (EPROM) from Microchip Technology. Key features include:
1. High Speed: Access time of 70 ns, ideal for fast data retrieval.
2. Low Power Consumption: Consumes minimal power, suitable for battery-operated applications.
3. Compatibility: Directly compatible with the JEDEC standard for EPROMs, allowing easy integration into existing designs.
4. Data Retention: Guarantees data retention for 10 to 20 years, ensuring long-term reliability.
5. Programming: Offers a quick programming time, typically requiring only a single 100 µs pulse.
6. Package: Available in a 28-pin Dual in-line Package (DIP) and a 32-lead Thin Quad Flat Pack (TQFP) for adaptable mounting options.
7. Temperature Range: Operable in a wide temperature range, catering to various environmental conditions.
These features make the AT27C256R-70JU suitable for a wide array of applications where non-volatility and fast access times are required.

The AT27C256R-70JU is a 256-kilobit (32KB) one-time programmable (OTP) read-only memory (ROM) chip from Microchip Technology (previously Atmel). It comes in a 28-pin dual in-line package (DIP).
The pin configuration is as follows:
- Address Inputs (A0-A14): Pins used to select the memory location for read operations.
- Data Outputs (Q0-Q7): Pins where data is output during a read operation.
- Chip Enable (CE): Activates the chip for reading when set to a low level.
- Output Enable (OE): Enables the data outputs when set to a low level.
- Power Supply (VCC): Supplies power to the chip.
- Ground (GND): Provides a reference voltage.
The AT27C256R is designed for high-speed access time, typically around 70 nanoseconds, making it suitable for fast memory read applications. It operates over a wide range of temperatures and is used in various applications that require permanent data storage.

The AT27C256R-70JU is a product manufactured by Microchip Technology Inc. Microchip Technology is an American company that specializes in the production of microcontroller, memory, and analog semiconductors. Microchip Technology provides a wide range of integrated circuits and related products, offering solutions for various industries, including automotive, aerospace, consumer electronics, and industrial applications. Their focus is on embedded control solutions, which encompass a combination of hardware and software components designed to execute specific tasks within larger systems.

The AT27C256R-70JU is a 256K (32K x 8) CMOS EPROM, which is used in various applications requiring non-volatile memory storage. Key application areas include:
1. Embedded Systems: Used for storing firmware and software in microcontroller-based systems.
2. Industrial Controls: Employed in systems requiring reliable and durable memory for control software.
3. Automotive Electronics: Utilized in engine control units and other automotive applications.
4. Consumer Electronics: Applied in devices needing stable memory storage for operational software.
5. Communication Equipment: Used for storing configuration data and operational software.
6. Medical Devices: Provides reliable memory storage for critical software in medical equipment.
These make it suitable for applications where data retention and reliability are crucial.

The AT27C256R-70JU is a CMOS EPROM (Erasable Programmable Read-Only Memory) that comes in a 28-pin PLCC (Plastic Leaded Chip Carrier) package. It has a 256Kb storage capacity and a 70-nanosecond access time, making it suitable for quick data retrieval applications.