SRAM Forum Discussions
OMS has some questions about CY62157G30-45ZXI.
The Figure 400 is from ST MCU datasheet.
OMS wants to know about CY62157G30-45ZXI the timing relationships.
Take write as an example, which signal corresponds to the start and end of ADDSET and the start and end of DATAST respectively
(For example, does ADDSET start with A[25:0] and end with NWE as L, or start with NE as L and end with NWE as L)Show Less
I think this is a custom item, but I'd like to know about the data sheet and alternatives.
I assume this is a custom product, but could you please tell me about the data sheet and alternatives?
Can this memory be ordered as lot sorted for the standby current? Can you provide the manufacturing distribution for the standby current?Show Less
In the config.v file i set the define to FM25CL64B.
When I try to compile the model with ncsim, the compiler tells me that he's expecting a keyword like 'module', 'macromodule' or 'primitive' at line 381. This is where the parameters for the choosen part start.
Since there are only defines and parameters in this file the compiler output doesn't make much sense to me.
Ideas anybody?Show Less
I am working on CY62157EV30LL 45ZXi SRAM chip on imx53 processor connected through EIM interface.
1.When I write data , it hsows as written proper data but when reading it shows same 2 byte data reading for other 2 bytes also.
Example, 0x12345678 is written , when read backs it shows as 0x12341234
2. When I read for next address and so on , it shows the previously read value only like 0x12341234 as shown below
debian@arm:~$ sudo ./devmem2 0xf0000000 w 0x12345678
Memory mapped at address 0xb6fed000.
Value at address 0xF0000000 (0xb6fed000): 0xABCDABCD
Written 0x12345678; readback 0x12341234
debian@arm:~$ sudo ./devmem2 0xf0000000
Memory mapped at address 0xb6ff0000.
Value at address 0xF0000000 (0xb6ff0000): 0x12341234
debian@arm:~$ sudo ./devmem2 0xf0000004
Memory mapped at address 0xb6fde000.
Value at address 0xF0000004 (0xb6fde004): 0x12341234
debian@arm:~$ sudo ./devmem2 0xf0000008
Memory mapped at address 0xb6fbe000.
Value at address 0xF0000008 (0xb6fbe008): 0x12341234
3.Can anyine tell me what are the working timing parameters to be configured on imx side for cy6215 sram chip.
4.How to change the EIM frequencyShow Less
Please help to check the chip, may i know the whether the chip construction is correct
CY62157EV30LL-45ZSXIT DC 2237 Lot# 612226025 COO: Philippines
Low consumption SRAM "CY62187G30-55BAXI
A problem has occurred that causes a mismatch in CRC values.
When we check the waveform, the address setting for readout is correct,
However, the 0's and 1's are changing in a part of the readout data.
Two consecutive readouts are successful.
CY62187G30-55BAXI is equipped with ECC,
Is this a negative effect of having ECC installed?
Please give us information on how ECC works (what kind of processing it does).
The model number is: CY6218G30-55BAXI.
Please let us know the following.
(1) Is it possible to disable the power-saving mode?
(2) How long does it take for the power saving mode to become effective?
(3) How long does it take (typ, max) to recover (disable) from the power saving mode?