CY7C4225V集成电路（IC）的FIFO存储器规格书PDF中文资料

CY7C4225V属于集成电路（IC）的FIFO存储器。由赛普拉斯半导体公司制造生产的CY7C4225VFIFO 存储器先入先出 (FIFO) 存储器可用于数字信息的短期存储，其中信息检索顺序和序列与信息存储顺序和序列相同。这类产品又称为队列或缓冲存储器，通常用于在单独的设备之间交换信息，尤其是在数据以不同的速率或在略微不同的时间点生成和使用的情况下。

Functional Description

The CY7C42X5V are high-speed, low-power, first-in first-out (FIFO) memories with clocked read and write interfaces. All are 18 bits wide. The CY7C42X5V can be cascaded to increase FIFO depth. Programmable features include Almost Full/Almost Empty flags. These FIFOs provide solutions for a wide variety of data buffering needs, including high-speed data acquisition, multiprocessor interfaces, and communications

buffering.

特性 Features

• 3.3V operation for low power consumption and easy integration into low-voltage systems

• High-speed, low-power, first-in first-out (FIFO) memories

• 64 x 18 (CY7C4425V)

• 256 x 18 (CY7C4205V)

• 512 x 18 (CY7C4215V)

• 1K x 18 (CY7C4225V)

• 2K x 18 (CY7C4235V)

• 4K x 18 (CY7C4245V)

• 0.65µ CMOS

• High-speed 67-MHz operation (15-ns read/write cycle times)

• Low power

— ICC = 30 mA

• 5V tolerant inputs (VIH MAX = 5V)

• Fully asynchronous and simultaneous read and write operation

• Empty, Full, Half Full, and programmable Almost Empty and Almost Full status flags

• TTL-compatible

• Retransmit function

• Output Enable (OE) pin

• Independent read and write enable pins

• Supports free-running 50 duty cycle clock inputs

• Width-Expansion Capability

• Depth-Expansion Capability

• 64-pin 14 × 14 TQFP and 64-pin 10 × 10 STQFP

• Pb-Free packages available