Description:The 7281 is a dual-FIFO memory that loads and empties data on a first-in/first-out basis. It utilizes a 9-bit wide data array to allow for control and parity bits at the user's option. This is useful in data communications applications where a parity bit is needed for transmission/reception error checking. It is designed for those applications requiring asynchronous and simultaneous read/writes in multiprocessing and rate buffer applications.
Renesas provides a recommended PCB layout guide in their application note (R01AN2732EU0100) which includes thermal design considerations, such as placing thermal vias under the package and using a solid ground plane to reduce thermal resistance.
To ensure reliable operation in high-temperature environments, it's essential to follow the recommended operating conditions, use a suitable thermal design, and consider derating the device's power dissipation according to the temperature derating curve provided in the datasheet.
The input capacitor (CIN) should have a capacitance of at least 10uF, an ESR of less than 100mΩ, and a voltage rating of at least 25V. Additionally, the capacitor should be placed as close as possible to the VIN pin to minimize parasitic inductance.
To troubleshoot issues related to output voltage regulation or stability, check the input voltage, output load, and feedback network. Ensure that the feedback resistors are correctly selected, and the output capacitor is suitable for the application. Also, verify that the device is operated within the recommended operating conditions.
Not using the enable pin (EN) can cause the device to remain in an active state, even when the input voltage is removed, which can lead to increased power consumption and heat generation. It's recommended to use the EN pin to control the device's operation and ensure proper shutdown.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
7281L15PAGI Overview
Use the download button to access the 7281L15PAGI schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like 7281L,
or try a keyword search, such as FIFOs
