Renesas Electronics Corporation

The 72V255 is an 8K x 18 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72255 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. SuperSync FIFOs are particularly appropriate for networking, video, telecommunications, data communications and other applications that need to buffer large amounts of data.

The 72V261 is a 16K x 9 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72261 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. The period required by the retransmit operation and the first word data latency period is now fixed and short. (The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated on this SuperSync family.)

The 72V263 16K x 9/8K x 18 SuperSync II FIFO memory has flexible x9/x18 bus-matching on both read and write ports. The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated. SuperSync II FIFOs are appropriate for network, video, telecommunications, data communications, and other applications that need to buffer large amounts of data and match buses of unequal sizes.

The 72V265 is an 16K x 18 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72265 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. SuperSync FIFOs are particularly appropriate for networking, video, telecommunications, data communications and other applications that need to buffer large amounts of data.

The 72V271 is a 32K x 9 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72271 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. The period required by the retransmit operation and the first word data latency period is now fixed and short. (The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated on this SuperSync family.)

The 72V273 32K x 9/16K x 18 SuperSync II FIFO memory has flexible x9/x18 bus-matching on both read and write ports. The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated. SuperSync II FIFOs are appropriate for network, video, telecommunications, data communications, and other applications that need to buffer large amounts of data and match buses of unequal sizes.

The 72V275 is a 32K x 18 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72275 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. SuperSync FIFOs are particularly appropriate for networking, video, telecommunications, data communications and other applications that need to buffer large amounts of data.

The 72V281 is a 64K x 9 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72281 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. The period required by the retransmit operation and the first word data latency period is now fixed and short. (The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated on this SuperSync family.)

The 72V283 64K x 9/32K x 18 SuperSync II FIFO memory has flexible x9/x18 bus-matching on both read and write ports. The variable clock cycle counting delay associated with the latency period found on previous SuperSync devices has been eliminated. SuperSync II FIFOs are appropriate for network, video, telecommunications, data communications, and other applications that need to buffer large amounts of data and match buses of unequal sizes.

The 72V285 is an 64K x 18 SuperSync FIFO memory with clocked read and write controls. It's a functionally compatible version of the 72285 designed to run off a 3.3V supply for very low power consumption. The Frequency Select pin (FS) has been removed, thus it is no longer necessary to select which of the two clock inputs, RCLK or WCLK, is running at the higher frequency. SuperSync FIFOs are particularly appropriate for networking, video, telecommunications, data communications and other applications that need to buffer large amounts of data.