Features: Select 8192 x 18 or 16384x 9 organization (IDT72264)Select 16384 x 18 or 32678 x 9 organization (IDT72274)Flexible control of read and write clock frequenciesReduced dynamic power dissipationAuto power down minimizes power consumption15 ns read/write cycle time (10 ns access time)Retrans...
IDT72264: Features: Select 8192 x 18 or 16384x 9 organization (IDT72264)Select 16384 x 18 or 32678 x 9 organization (IDT72274)Flexible control of read and write clock frequenciesReduced dynamic power dissipat...
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Symbol | Rating | Commercial | Unit |
VTERM | Terminal Voltage with respect to GND |
-0.5 to +7. | V |
TA | Operating Temperature |
0 to +70 | |
TBIAS | Temperature Under Bias |
-55 to +12 | |
TSTG | Storage Temperature |
-55 to +12 | |
IOUT | DC Output Current | 50 | mA |
The IDT72264/72274 are monolithic, CMOS, high capac-ity, high speed, low power first-in, first-out (FIFO) memories
with clocked read and write controls. These FIFOs have three main features that distinguish them among SuperSync FIFOs:
First, the data path width of the IDT72264 can be changed from 9-bits to 18-bits; as a result,halving the depth. A pin called Memory Array Select (MAC) chooses between the two options.This feature helps reduce the need for redesigns or multiple versions of PC cards, since a single layout can be used for both data bus widths.
Second, IDT72264 offer the greatest flexibility for setting and varying the read and write clock (WCLK and
RCLK) frequencies. For example,given that the two clock frequencies are unequal, the slower clock may exceed the
faster by, at most, twice its frequency. This feature is espe-cially useful for communications and network applications where clock frequencies are switched to permit different data rates.