2025-06-26 1:46 AM - edited 2025-06-26 7:32 PM
Use CY7C1441KV33 to expand memory space on STM32H7A3, with the following connections::
The timing requirements for burst read and write of CY7C1441KV33 are as follows:
(1)Read timing: First read the data of CY7C1441KV33, and then add 1 to the internal address of CY7C1441KV33.
(2)Write timing: First, add 1 to the internal address of CY7C1441KV33, and then write data to CY7C1441KV33.
STM32H7A3 can meet the read timing requirements of CY7C1441KV33. But STM32H7A3 does not meet the writing timing requirements of CY7C1441KV33. May I ask if STM32H7A3 can use CY7C1441KV33?
NOTE:
The burst read timing diagram of STM32H7A3 and CY7C1441KV33 is shown below:
STM32H7A3 read timing
CY7C1441KV33 read timing
The burst write timing diagram of STM32H7A3 and CY7C1441KV33 is shown below:
STM32H7A3 write timing
CY7C1441KV33 write timing