What memories can I use with the CY7C53150-20AI part?

Question: What memories can I use with the CY7C53150-20AI part?

 

Answer:

The CY7C53150 can be used with a variety of memories, including PROM, EEPROM, Flash, NVRAM, and SRAM.  As a minimum it requires 16K of non-volatile memory like EPROM or Flash.  The choice of which memory chip can be used depends on the Address and Data bus characteristics of the memory as well as the input clock frequency of the Cypress 3150.  Below is a list of qualified memories, please refer to the "Cypress CY7C53150 External Memory Interface" Application Note for more information on the how to design the memory interface and how to calculate the timing requirements.



PROM Devices (32K x 8) - 10MHz Input Clock Frequency

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Microchip: 27C256-90

WSI:  WS57C256F

AMD: AM27C256-120JC

Atmel: AT27C256R-12JC



PROM Devices (32K x 8) - 20MHz Input Clock Frequency

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Atmel:  AT27C256R-45JC



SRAM Devices (32K x 8) - 10MHz Input Clock Frequency

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Cypress: CY7C199-35SC



SRAM Devices (32K x 8) - 20MHz Input Clock Frequency

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Cypress: CY7C199-35SC



Flash Devices (32K x 8) - 10MHz Input Clock Frequency

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Atmel: AT29C256-90, AT29C256-12

Atmel: AT29C257-90, AT29C257-12

Atmel: AT29C512-90, AT29C512-12



Flash Devices (32K x 8) - 20MHz Input Clock Frequency

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No Flash parts are currently recommended for 20MHz operation