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This page is being converted and written. I'm down to the Level Conversion. Please come back soon to see what progress has been made |
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The purpose of this section is to compare the original 5v Flash chips with the 3.3v versions and to ensure that the next version addresses any outstanding issues.
Latest NEWS
| Date | From | |
|---|---|---|
| 24/02/17 | AMIC Technology | We are designing a successor for the A29040C called A29040D. This part will become available in Q2. In case you consider the 3 volt option we advise A29L040B which is also in design and will be released in Q3 this year. All these new designs are necessary to transfer to new wafer processes allowing long term availability. With best regards, Rob |
Design Considerations
First all the signals from/to the Z88 need to be converted
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| Device | Package | Manufacturer | Sectors | ||
|---|---|---|---|---|---|
 | AM29F800BB-55EF | 48-Pin TSOP | SPANSION | 64 Kbyte sectors |
Spansion are putting their 1M AMD Flash chips on End of Life EOL.
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AMIC may have had some 5v replacements A29800, A29801 these are no longer available.
The package is slightly larger, they do not fully match.
Once stocks of the Am29F080B device are depleted, there is no replacement.
512K Flash 5v
The following device is available 23/02/17
| Device | Package | Manufacturer | Sectors | ||
|---|---|---|---|---|---|
| SST39SF040-70-4C-NHE | PLCC | MICROCHIP | 4 Kbyte sectors |
NOTE: The Z88 will not be able to program this chip due to the 4 Kbyte sectors. It may be programmed with an external programmer.
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| Device | Package | Manufacturer | Sectors | ||
|---|---|---|---|---|---|
| A29040C-55F | DIP 32 | AMIC | 64 Kbyte | ||
 | A29040CL-55F | PLCC | AMIC | 64 Kbyte |
The following devices were available 27/07/2013
| Device | Package | Manufacturer | Sectors | ||
|---|---|---|---|---|---|
| A29040B-70F | DIP 32 | AMIC | 64 Kbyte sectors | ||
| A29040BL-70F | PLCC | AMIC | 64 Kbyte sectors | |
 | A29040BV-70F | 32 TSOP | AMIC | 64 Kbyte sectors | |
| AM29F040B-55JF | PLCC | SPANSION | 64 Kbyte sectors | |
| AM29F040B-90JF | PLCC | SPANSION | 64 Kbyte sectors | |
| A29L040L-70F | PLCC | AMIC | 64 Kbyte sectors | |
| SST39SF040-70-4C-NHE | PLCC | MICROCHIP | Uniform 4KByte sectors | |
| SST39SF040-70-4I-NHE | PLCC | Uniform 4KByte sectors | ||
| SST39SF040-70-4I-WHE | 32 TSOP | Uniform 4KByte sectors |
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| Device | Package | Manufacturer | Sectors | ||
|---|---|---|---|---|---|
| A29010L-70F | PLCC | AMIC | 64 Kbyte sectors | |
| A29010V-70F | 32 TSOP | AMIC | 64 Kbyte sectors | |
| AM29F010B-70JF | PLCC | SPANSION | 64 Kbyte sectors | |
| SST39SF010A-70-4C-NHE | PLCC | MICROCHIP | Uniform 4KByte sectors | |
| SST39SF010A-70-4C-WHE | 32 TSOP | MICROCHIP | Uniform 4KByte sectors | |
| SST39SF010A-70-4I-NHE | PLCC | MICROCHIP | Uniform 4KByte sectors | |
| SST39SF010A-70-4I-WHE | 32 TSOP | MICROCHIP | Uniform 4KByte sectors | |
| SST39SF010A-70-4C-PHE | DIP 32 | MICROCHIP | Uniform 4KByte sectors |
Conclusion
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