AT28C256-15PU
This IC is an EEPROM memory chip with a storage capacity of 256 kilobitsAT28C256-15PU
This IC is an EEPROM memory chip with a storage capacity of 256 kilobits
-
Manufacturer Part # : AT28C256-15PU
-
Package/Case: PDIP-28
-
Brand: Quantum Integration
-
Product Categories : Memory
-
Series : AT28C256
Quality Assurance
Quality Assurance
All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.






Certification
We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.
Shipping & Payment
Shipping & Payment
About Shipping
We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.








About Payment
We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.
If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.

WireTransfer

Paypal

CreditCard

WesternUnion

MoneyGram
Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
Confirm the return or exchange with our staff.
Maintain the goods in their original condition as received.
Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]
About packaging
Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

Example

Tape and Reel

Cut Tape

Tube or Tray
AT28C256-15PU DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Interested Parts
AT28C256-15PU Details
The AT28C256-15PU is a high-performance parallel EEPROM memory from Microchip Technology, designed for reliable data storage in various applications. This device features 256K (32K x 8) of EEPROM memory, fast access time of 150ns, and low power consumption, making it suitable for industrial control systems, communication equipment, and automotive electronics.
Key Features
- 256K (32K x 8) EEPROM Memory: Provides a large amount of nonvolatile memory for storing data.
- Fast Access Time - 150ns: Enables fast data access and retrieval.
- Low Power Consumption: Designed to consume low power, making it suitable for battery-powered applications.
- Single Power Supply Operation: Operates from a single power supply voltage.
Applications
The AT28C256-15PU is suitable for various applications that require reliable data storage, including:
- Industrial Control Systems: Provides a reliable means of storing and retrieving control system data.
- Communication Equipment: Enables efficient data storage and retrieval in communication equipment such as routers and switches.
- Automotive Electronics: Suitable for automotive applications that require reliable data storage, such as engine control units and infotainment systems.
Where to Use
The AT28C256-15PU is suitable for use in a wide range of applications where reliable data storage is required. It can be used in industrial control systems, communication equipment, and automotive electronics.
How to Use
To use the AT28C256-15PU, simply connect it to your system's parallel bus and apply power. The device can be programmed using a variety of programming methods, including parallel loading and serial interfaces.
Application Circuit
The application circuit diagram for the AT28C256-15PU illustrates how to connect the device to your system's parallel bus. It includes connections for power supply, ground, and data lines, ensuring proper operation and reliable data storage.
(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)
Complementary
The AT28C256-15PU can be complemented by other Microchip Technology products that provide additional features and functionality, such as serial interfaces and encryption capabilities.
When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.
Frequently Asked Questions
Q: What is the access time of the AT28C256-15PU?
A: The AT28C256-15PU has an access time of 150ns.
Q: Can the AT28C256-15PU be used in automotive applications?
A: Yes, the AT28C256-15PU is suitable for use in automotive applications that require reliable data storage and retrieval.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Category ! | EEPROM | RoHS | Details |
Mounting Style | Through Hole | Package / Case | PDIP-28 |
Interface Type | Parallel | Memory Size ! | 256 kbit |
Organization | 32 k x 8 | Supply Voltage - Min | 4.5 V |
Supply Voltage - Max | 5.5 V | Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature ! | + 85 C | Maximum Clock Frequency | 5 MHz |
Access Time | 150 ns | Data Retention | 10 Year |
Supply Current - Max | 50 mA | Series | AT28C256 |
Active Read Current - Max | 50 mA | Brand | Microchip Technology |
Height | 4.83 mm/0.38 mm (Max)/(Min) | Length | 37.34 mm (Max) |
Moisture Sensitive | Yes | Operating Supply Current | 50 mA |
Operating Supply Voltage ! | 5 V | Output Enable Access Time | 70 ns |
Product Type ! | EEPROM | Programming Voltage ! | 4.5 V to 5.5 V |
Factory Pack Quantity | 14 | Subcategory | Memory & Data Storage |
Width | 13.97 mm (Max) | Unit Weight | 0.147798 oz |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is AT28C256-15PU?
The AT28C256-15PU is a 256-kilobit (32K x 8) electrically erasable programmable read-only memory (EEPROM) chip manufactured by Atmel Corporation. It offers non-volatile storage capability for data that needs to be retained even when power is removed. The '15PU' in the part number signifies a speed rating of 150ns access time.
How Does AT28C256-15PU Work?
The AT28C256-15PU operates by storing and retrieving data electronically within its memory cells. Data can be both written to and read from the chip. The EEPROM technology allows for data to be erased and reprogrammed multiple times, providing flexibility in data storage applications.
How Many Pins does AT28C256-15PU have and What are the Functions of the Pinout Configuration?
The AT28C256-15PU is housed in a 28-pin DIP (Dual Inline Package) package. The pinout configuration includes:
- A0-A14: Address input pins for memory addressing.
- DQ0-DQ7: Data input/output pins for 8-bit data transfer.
- CE: Chip Enable pin for activating the chip.
- OE: Output Enable pin for controlling data output.
- WE: Write Enable pin for initiating write operations.
- VCC: Power supply pin.
- GND: Ground pin.
What are the Pros and Cons of AT28C256-15PU?
Pros:
- Non-Volatile Storage: Retains data even without power, ideal for applications requiring persistent memory.
- Electrically Erasable: Allows for easy reprogramming of data without the need for UV light exposure.
- High Capacity: Offers 256-kilobit storage capacity for various data storage needs.
- Reliable: Provides stable and reliable data retention over multiple read and write cycles.
- Wide Voltage Range: Supports operation with a range of supply voltages for flexibility in system design.
Cons:
- Speed: The 150ns access time may be slower compared to newer EEPROM technologies.
- Complex Interface: Requires careful handling of address and control signals for proper operation.
- Limited Endurance: EEPROM technology may have a limited number of erase/write cycles compared to other memory types.
Are There Any Equivalents/Alternatives to AT28C256-15PU for Recommendation?
- The SST28SF040A from Microchip Technology is a similar EEPROM with a different capacity and features.
- Alternatives to the AT28C256-15PU include the M27C256B from STMicroelectronics and the 28C256 from Microchip Technology.
Recommend Parts
-
EEPROM Serial-I2C 1M-bit 128K x 8 3.3V/5V 8-Pin SOIC N Tube
Brand: Microchip Technology Package/Case: SOIC-8
7,572 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
This product is a 1Kb I2C EEPROM designed by ATMEL and packaged in an 8TSOT format."
Brand: Microchip Technology Package/Case: TSOT-5
7,809 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
MICROCHIP - AT25160B-SSHL-B - SERIAL EEPROM, 16KBIT, 5MHZ, SOIC-8
Brand: Microchip Technology Package/Case: SOIC-8
5,173 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
This product is a One-Time Programmable (OTP) memory module with a capacity of 32Kx8 and is commonly used for storing data in electronic devices
Brand: Quantum Integration Package/Case: PDIP-28
3,413 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
This product is a ROM non-volatile memory solution with a capacity of 512Kbit, featuring a PDIP-28 package
Brand: Quantum Integration Package/Case: PDIP-28
3,846 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
5,225 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
Ultra-reliable data retention and erasure capabilities for harsh environmental condition
Brand: Quantum Integration Package/Case: PDIP-28
5,725 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
6,246 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
3,337 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
6,812 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
Requires a voltage supply between 4.5V and 5.5V
Brand: Quantum Integration Package/Case: PLCC-32
5,333 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
Operating voltage range of 4.5V to 5.5V
Brand: Microchip Technology Package/Case: TSOP-32
900 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
NOR Flash 1M (64kx16) is the main feature of product AT29C1024-70JC
Brand: Microchip Technology Package/Case: PLCC-44
7,999 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
3,264 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
5,594 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
-
6,390 In Stock
Cargo cycle: 3~7 Days
The minimum order is 1
Price details
Prices listed do not include VAT.
Quantity | Unit Price |
---|