DESCRIPTION:
The IDT72V3640/72V3650/72V3660/72V3670/72V3680/72V3690/72V36100/72V36110 are exceptionally deep, high speed, CMOS First-In First-Out (FIFO) memories with clocked read and write controls and a flexible Bus-Matching x36/x18/x9 data flow. These FIFOs offer several key user benefits:
⢠Flexible x36/x18/x9 Bus-Matching on both read and write ports
⢠The period required by the retransmit operation is fixed and short.
⢠The first word data latency period, from the time the first word is
written to an empty FIFO to the time it can be read, is fixed and short.
⢠High density offerings up to 4 Mbit
FEATURES:
⢠Choose among the following memory organizations:Commercial
IDT72V3640 - 1,024 x 36
IDT72V3650 - 2,048 x 36
IDT72V3660 - 4,096 x 36
IDT72V3670 - 8,192 x 36
IDT72V3680 - 16,384 x 36
IDT72V3690 - 32,768 x 36
IDT72V36100 - 65,536 x 36
IDT72V36110 - 131,072 x 36
⢠133 MHz operation (7.5 ns read/write cycle time)
⢠User selectable input and output port bus-sizing
- x36 in to x36 out
- x36 in to x18 out
- x36 in to x9 out
- x18 in to x36 out
- x9 in to x36 out
⢠Big-Endian/Little-Endian user selectable byte representation
⢠5V input tolerant
⢠Fixed, low first word latency
⢠Zero latency retransmit
⢠Auto power down minimizes standby power consumption
⢠Master Reset clears entire FIFO
⢠Partial Reset clears data, but retains programmable settings
⢠Empty, Full and Half-Full flags signal FIFO status
⢠Programmable Almost-Empty and Almost-Full flags, each flag can
default to one of eight preselected offsets
⢠Selectable synchronous/asynchronous timing modes for Almost
Empty and Almost-Full flags
⢠Program programmable flags by either serial or parallel means
⢠Select IDT Standard timing (using EF and FF flags) or First Word
Fall Through timing (using OR and IR flags)
⢠Output enable puts data outputs into high impedance state
⢠Easily expandable in depth and width
⢠Independent Read and Write Clocks (permit reading and writing
simultaneously)
⢠Available in the 128-pin Thin Quad Flat Pack (TQFP)
⢠High-performance submicron CMOS technology
⢠Industrial temperature range (â40°C to +85°C) is available
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