Description

The CY7C245A-15JIT is an IC chip, belonging to the electronic component model CY7C419, which is a first-in first-out (FIFO) buffer memory. It is available in both 600-mil wide and 300-mil wide packages and has a storage capacity of 256 words by 9 bits wide. The data is read in the same sequence that it was written and the device provides full and empty flags to prevent overrun and underrun. It has three additional pins to allow unlimited expansion in width, depth, or both. The depth expansion technique eliminates the serial addition of propagation delays, thereby avoiding any reduction in throughput speed. The CY7C245A-15JIT is a dual-ported RAM cell that has a high speed read and write rate of 50 MHz, independent of depth and width, and a low operating power of ICC = 35 mA. It is compatible with TTL and is expandable in width. The IC chips are available in Pb-free packages.

Specifications and features

• Asynchronous FIFO buffer memory
• 256 words by 9 bits wide
• High speed 50 MHz read and write rate
• Low operating power of ICC = 35 mA
• Provides full and empty flags to prevent overrun and underrun
• Expandable in width
• Dual-ported RAM cell
• TTL compatible
• Pb-free packages available

Application Scenarios

The CY7C245A-15JIT can be used in various digital circuits that require buffering of data such as communications systems, disk drives, and video equipment. It is suitable for designs which involve digital signal processing or applications where read from and write to FIFO need to occur independently. It can function as a buffer between analog and digital systems due to its correct functioning of the amount of data in the channel with a buffer.

Comparison

• High-speed read and write rate of 50 MHz independent of depth and width
• Eliminates the serial addition of propagation delays with depth expansion
• Provides full and empty flags to prevent overrun and underrun
• Expandable in width
• Dual-ported RAM cell
• Pb-free packages available

• The depth expansion technique does not allow for unlimited expansion in both width and depth simultaneously
• The IC chip capacity maxes out at 4K x 9 bits wide with the CY7C433
• Temperature might affect the operating speed