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IDT72221-L20J from IDT

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IDT72221-L20J

Manufacturer: IDT

CMOS SyncFIFO 64 X 9, 256 x 9, 512 x 9, 1024 X 9, 2048 X 9 and 4096 x 9

Partnumber Manufacturer Quantity Availability
IDT72221-L20J,IDT72221L20J IDT 16 In Stock

Description and Introduction

CMOS SyncFIFO 64 X 9, 256 x 9, 512 x 9, 1024 X 9, 2048 X 9 and 4096 x 9 The IDT72221-L20J is a high-speed, low-power 16K x 9-bit synchronous FIFO (First-In, First-Out) memory device manufactured by Integrated Device Technology (IDT).  

### **Key Specifications:**  
- **Memory Organization:** 16K x 9-bit  
- **Operating Voltage:** 5V  
- **Access Time:** 20ns (L20J speed grade)  
- **Operating Frequency:** Up to 50MHz  
- **Power Consumption:** Low-power CMOS technology  
- **Package:** 32-pin PLCC (Plastic Leaded Chip Carrier)  

### **Descriptions and Features:**  
- **Synchronous Operation:** Read and write operations are synchronized to a clock signal.  
- **Programmable Flags:** Includes Almost Full (AF), Almost Empty (AE), Full (FF), and Empty (EF) flags for efficient data flow control.  
- **Bidirectional Data Bus:** 9-bit wide data bus for byte-wide data transfers with parity.  
- **Expandable Depth and Width:** Supports depth expansion in multiples and width expansion using multiple devices.  
- **Retransmit Function:** Allows re-reading data from the beginning of the FIFO.  
- **High-Speed Performance:** Optimized for high-throughput applications.  
- **Industrial Temperature Range:** Suitable for industrial environments.  

This FIFO is commonly used in buffering applications, data communication, and high-speed data transfer systems.

Application Scenarios & Design Considerations

CMOS SyncFIFO 64 X 9, 256 x 9, 512 x 9, 1024 X 9, 2048 X 9 and 4096 x 9

Alternative Part Number

  • CY7C421-20JC --: Pin-compatible FIFO memory in the same 32-pin PLCC package with comparable 20 ns access speed, widely available as a second-source option.
  • SN74ACT7803-20FN --: Equivalent-function asynchronous FIFO with similar depth and 20 ns timing, offered in PLCC and supported by a mature, well-documented product line.
  • 72V221L20J --: Direct functional replacement for the IDT 72221 FIFO family, same organization and 20 ns speed grade, produced by the successor owner of the IDT memory portfolio.

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