The SN74V3640, SN74V3650, SN74V3660, SN74V3670, SN74V3680, and SN74V3690 are 3.3-V CMOS FIFOs with selectable depth and bandwidth to meet the needs of a variety of applications. These devices feature low power and high performance, making them ideal for communication, consumer electronics, and computing applications.
The document describes the SN74V3640, SN74V3650, SN74V3660, SN74V3670, SN74V3680, and SN74V3690, which are exceptionally deep, high-speed CMOS first-in first-out (FIFO) memories. These devices feature clocked read and write controls and flexible bus-matching capabilities for x36, x18, or x9 data flow. They are designed for applications requiring large data buffering and bus size matching, such as network, video, and telecommunications systems.
Key features include high-density offerings up to 1 Mbit, 5-V tolerant inputs, and the ability to read and write simultaneously using independent clocks. The FIFOs offer flexible flag options, including empty, full, half-full, and programmable almost-empty/almost-full flags, which can be configured via serial or parallel methods. Timing modes include standard operation and first-word fall-through (FWFT) for depth expansion.
| Memory Type | 3.3-V CMOS First-In, First-Out Memories |
|---|---|
| Capacity Options | 1024 x 36 to 32768 x 36 |
| Maximum Operation Frequency | 166 MHz |
| Maximum Density | 1 Mbit |
| Input Voltage Tolerance | 5 V |
| Package Type | 428-Pin Thin Quad Flat Pack |
The available depths are 1024 x 36, 2048 x 36, 4096 x 36, 8192 x 36, 16384 x 36, and 32768 x 36.
The data input and output ports can assume 36-bit, 18-bit, or 9-bit width.