What is the Additional Feature ?

Name: AT27C256R-45JU-T
Brand: Microchip Technology
SKU: AT27C256R-45JU-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

Cart ( )

lmages are for reference only See Product Specifications

Microchip Technology AT27C256R-45JU-T

Part No.:: AT27C256R-45JU-T

Manufacturer:: Microchip Technology

Package:: 32-LCC (J-Lead)

Datasheet:: AT27C256R-45JU-T.pdf

Description:: IC EPROM 256KBIT PARALLEL 32PLCC

In Stock:: 3910

Quantity:: Add To Cart

For more detailed including pricing and shipping

: Quick response, quick quotation

: Flash shipment, no worries after sales

: Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Purchase and inquiry

AT27C256R-45JU-T Specifications

Package/Case:
32-LCC (J-Lead)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
MemoryType:
Non-Volatile
MemoryFormat:
EPROM
Technology:
EPROM - OTP
MemorySize:
256Kb (32K x 8)
MemoryInterface:
Parallel
ClockFrequency:
-
WriteCycleTime-WordPage:
-
AccessTime:
45 ns
Voltage-Supply:
4.5V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C (TC)
MountingType:
Surface Mount

AT27C256R-45JU-T this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including AT27C256R-45JU-T price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for AT27C256R-45JU-T to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

Purchase in icwhale.com

There is no doubt that you may place an order without registering to icwhale.com.

We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

Means of Payment in icwhale.com

For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

RFQ (Request for Quotations) in icwhale.com

It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

Our sales will reply to your request by email within 24 hours.

Warm reminder

1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping & Handling

Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

Order Tracking for International Orders

Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.

AT27C256R-45JU-T information

Views：

AT27C256R-45JU-T Typical application Circuitry

The AT27C256R-45JU-T is a high-speed, low-power OTP (One-Time Programmable) EPROM (Erasable Programmable Read-Only Memory) chip. Developed by Microchip Technology, this chip provides 256K-bit (32K x 8) storage capacity.

Application Scenarios for AT27C256R-45JU-T

- Firmware Updates

- Data Logging in IoT Devices

- Boot Code Storage

- System Configuration Backup

Key Features of AT27C256R-45JU-T

- Memory Density: 256K-bit

- Access Time: 45ns

- Data Bus: 8-bit

- Operating Voltage: 5V

- Pin Count: 28-Pin DIP

Example Application: Boot Code Storage for IoT Devices

Required Hardware

- AT27C256R-45JU-T OTP EPROM Chip

- MCU (Microcontroller Unit)

- 10K Ohm Resistor

- Decoupling Capacitors: 0.1 µF and 1 µF

- 5V DC Power Supply

Circuit Configuration

Power Arrangement

1. Voltage Supply: Pins 20 (VCC) and 10 (GND) on AT27C256R-45JU-T should be connected to the 5V DC power supply.

2. Decoupling Capacitors: Attach a 0.1 µF capacitor between VCC and GND for high-frequency noise reduction. Likewise, implement a 1 µF capacitor for low-frequency noise damping.

Data and Address Lines

1. Data Bus Alignment: Data pins D0 through D7 (Pins 11 to 18) must be linked to the corresponding MCU data bus pins. This enables 8-bit data flow.

2. Addressing Mechanism: Pins 21 through 28 and 1 through 9 on the AT27C256R-45JU-T serve as the address pins A0-A14. These should be connected to the MCU to provide 32K of addressable space.

Control Pin Configuration

1. Chip Enable: Pin 22 (CE) should be tied to an MCU output. A pull-up resistor of 10K Ohm can prevent false triggering.

2. Output Enable: Pin 19 (OE) is responsible for driving data onto the data bus and should be connected to another output pin on the MCU.

Design Aspects to Consider

1. Voltage Stability: Confirm that the 5V power supply stays within the tolerance levels as specified by AT27C256R-45JU-T.

2. Timing Constraints: The chip has a 45ns access time. You should optimize your code to avoid read/write errors due to timing issues.

3. Mechanical Stress: Avoid applying excessive mechanical stress on the pins, which may damage the chip.

4. EPROM Erasure: As this is an OTP EPROM, data written cannot be erased. Ensure the data is verified multiple times before writing to AT27C256R-45JU-T.

By keeping these elements in mind, AT27C256R-45JU-T can be efficiently integrated into IoT devices for storing boot codes.

AT27C256R-45JU-T FAQ

1. How to order AT27C256R-45JU-T on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that AT27C256R-45JU-T is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the AT27C256R-45JU-T. All suppliers must pass our qualification reviews before they can publish their products including AT27C256R-45JU-T on icwhale.com; we pay more attention to the channels and quality of AT27C256R-45JU-T products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the AT27C256R-45JU-T price and inventory displayed accurate?

The price and inventory of AT27C256R-45JU-T fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of AT27C256R-45JU-T?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AT27C256R-45JU-T we delivered, we will accept the replacement or return of the AT27C256R-45JU-T only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of AT27C256R-45JU-T.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations