CY7C4211-15AC

Bus Directional:	Uni-Directional
Base Part Number:	7C4211
Supplier Device Package:	32-TQFP (7x7)
Package / Case:	32-TQFP
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
FWFT Support:	No
Retransmit Capability:	No
Programmable Flags Support:	Yes
Expansion Type:	Depth, Width
Series:	CY7C
Current - Supply (Max):	35mA
Voltage - Supply:	4.5V ~ 5.5V
Access Time:	10ns
Data Rate:	66.7MHz
Function:	Synchronous
Memory Size:	4.5K (512 x 9)
Part Status:	Obsolete
Packaging:	Tray

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Introduction

The CY7C4211-15AC is a 4-byte static FIFO (First In First Out) memory device developed by Cypress Semiconductor Corporation. It is used as an interfacing device between microcontrollers and synchronous serial peripherals like DSPs, TTL logic circuits and other high speed memories. This device provides for an interface which is capable of transferring data in a fully asynchronous, specific data order which maximizes the performance of the peripheral device being interfaced with.

Applications

CY7C4211-15AC is predominantly used for various interfacing applications, such as data transfer for microcontroller-to-DSP, microcontroller-to-memory, microcontroller-to-TTL logic circuits, and microcontroller-to-other high-speed memories. The CY7C4211-15AC is also used in digital signal processing (DSP) systems and communication systems.The CY7C4211-15AC can be used as an intermediate buffer between two or more synchronous serial interfaces, such as I2C, SPI, PCM or RS-232. For example, if an embedded system or microcontroller application requires a high speed serial connection to a GPS receiver, the CY7C4211-15AC can be used to bridge the two points and facilitate baud rate conversions.

Working Principle

The CY7C4211-15AC is a 4-byte static FIFO with a programmable depth up to eight bytes. It has a 3-wire bus of which two are for data transfer and the third is for addressing. The data and address are transferred simultaneously, allowing for higher speeds compared to other approaches that require two data transfers.The CY7C4211-15AC operates in three modes: input, output and idle. In input mode, data is transferred from the input port and stored in the FIFO\'s internal memory. In output mode, the data that is stored in the internal memory is transferred to the output port. In idle mode, the CY7C4211-15AC is not performing any data transfer, but can be used for initialization, reconfiguring and controlling the FIFO.

Conclusion

The CY7C4211-15AC is a versatile FIFO memory device which can be used for interfacing and data transfer for many applications. It has a simple and effective architecture with programmable depth and operating modes which make it a reliable and robust choice for transferring data from one device to another in a fully asynchronous manner.

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