Flash 5v
The purpose of this section is to compare the original Flash chips with later versions.
TSOP pinouts
48 pin TSOP | 40 pin TSOP | 32 pin TSOP | A29040BV 32 pin TSOP | Am29F080B 40 pin TSOP | Am29F800B 48 pin TSOP |
|---|---|---|---|---|---|
A15 | A16 | ||||
A14 | A19 | NC | BYTE# | ||
A13 | A18 | NC | VSS | ||
A12 | A17 | WE# | DQ15/A-1 | ||
A11 | A16 | OE# | DQ7 | ||
A10 | A15 | A11 | OE# | RY/BY# | DQ14 |
A9 | A14 | A9 | A10 | DQ7 | DQ6 |
A8 | A13 | A8 | CE# | DQ6 | DQ13 |
NC | A12 | A13 | I/O7 | DQ5 | DQ5 |
NC | CE# | A14 | I/O6 | DQ4 | DQ12 |
WE# | VCC | A17 | I/O5 | VCC | DQ4 |
RESET# | NC | WE# | I/O4 | VSS | VCC |
NC | RESET# | VCC | I/O3 | VSS | DQ11 |
NC | A11 | A18 | VSS | DQ3 | DQ3 |
RY/BY# | A10 | A16 | I/O2 | DQ2 | DQ10 |
A18 | A9 | A15 | I/O1 | DQ1 | DQ2 |
A17 | A8 | A12 | I/O0 | DQ0 | DQ9 |
A7 | A7 | A7 | A0 | A0 | DQ1 |
A6 | A6 | A6 | A1 | A1 | DQ8 |
A5 | A5 | A5 | A2 | A2 | DQ0 |
A4 | A4 | A4 | A3 | A3 | OE# |
A3 | VSS | ||||
A2 | CE# | ||||
A1 | A0 |
there is no standard using this package
DIL & PLCC Pinouts
| LH Side | RH Side | |
|---|---|---|
| A18 | VCC | |
| A16 | WE# | |
| A15 | A17 | |
| A12 | A14 | |
| A7 | A13 | |
| A6 | A8 | |
| A5 | A9 | |
| A4 | A11 | |
| A3 | OE# | |
| A2 | A10 | |
| A1 | CE# | |
| A0 | I/O7 | |
I/O0 | I/O6 | |
| I/O1 | I/O5 | |
| I/O2 | I/O4 | |
| VSS | I/O3 |
All manufactures use this standard.
1M
The following device was available 27/07/2013
| 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.
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 devices are available
| Device | Package | Manufacturer | Sectors | ||
|---|---|---|---|---|---|
 | A29040C-55F | DIP 32 | AMIC | 64 Kbyte sectors | |
 | A29040CL-55F | PLCC | AMIC | 64 Kbyte sectors |
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 |
128K Flash 5v
The following devices are available 27/07/2013
| 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
- There is no life left for the 1M Flash chips.
- The 512K size is the most cost effective and the 64 sector version is manufactured by two companies.
- 128K is not a lot cheaper than the 512K and is uneconomic to use.