Features: ` The IDT72V81 is equivalent to two IDT72V01 - 512 x 9 FIFOs` The IDT72V82 is equivalent to two IDT72V02 - 1,024 x 9 FIFOs` The IDT72V83 is equivalent to two IDT72V03 - 2,048 x 9 FIFOs` The IDT72V84 is equivalent to two IDT72V04 - 4,096 x 9 FIFOs` The IDT72V85 is equivalent to two IDT72V...
IDT72V84: Features: ` The IDT72V81 is equivalent to two IDT72V01 - 512 x 9 FIFOs` The IDT72V82 is equivalent to two IDT72V02 - 1,024 x 9 FIFOs` The IDT72V83 is equivalent to two IDT72V03 - 2,048 x 9 FIFOs` Th...
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Symbol |
Rating |
Commercial |
Unit |
VTERM | Terminal Voltage with Respect to GND |
0.5 to +7.0 |
V |
TSTG | Storage Temperature |
55 to +125 |
|
IOUT | DC Output Current |
50 to +50 |
mA |
The IDT72V84 are dual-FIFO memories that load and empty data on a first-in/first-out basis. These devices are functional and compatible to two IDT72V01/72V02/72V03/72V04/72V05 FIFOs in a single package with all associated control, data, and flag lines assigned to separate pins. The devices use Full and Empty flags to prevent data overflow and underflow and expansion logic to allow for unlimited expansion capability in both word size and depth.
The reads and writes of the IDT72V84 are internally sequential through the use of ring pointers, with no address information required to load and unload data. Data is toggled in and out of the devices through the use of the Write (W) and Read (R) pins.
The IDT72V84 utilize a 9-bit wide data array to allow for control and parity bits at the user's option. This feature is especially useful in data communications applications where it is necessary to use a parity bit for transmission/reception error checking. It also features a Retransmit (RT) capability that allows for reset of the read pointer to its initial position when RT is pulsed low to allow for retransmission from the beginning of data. A Half-Full Flag is available in the single device mode and width expansion modes.
These FIFOs of the IDT72V84 are fabricated using IDT's high-speed CMOS technology. They are designed for those applications requiring asynchronous and simultaneous read/writes in multiprocessing and rate buffer applications.