1 Architectural Features
The ATF1500A/AL and ATF1502 devices are offered in 44-lead PLCC/TQFP packages. The ATF1504 is offered in 44-lead PLCC/TQFP, 84-lead PLCC and 100-lead TQFP packages. The ATF1508 is offered in 84-lead PLCC, 100-lead TQFP/PQFP and 128-lead LQFP packages.
| Device | # of Macrocells | ISP | Description |
|---|---|---|---|
|
ATF1500A |
32 |
No |
5V Standard Power Device |
|
ATF1500AL |
32 |
No |
5V Low‑Power Device |
|
ATF1502AS |
32 |
Yes |
5V Standard Power Device |
|
ATF1504AS |
64 | ||
|
ATF1508AS |
128 | ||
|
ATF1502ASL |
32 |
Yes |
5V Low‑Power Device |
|
ATF1504ASL |
64 | ||
|
ATF1508ASL |
128 | ||
|
ATF1502ASV |
32 |
Yes |
3.3V Standard Power Device |
|
ATF1504ASV |
64 | ||
|
ATF1508ASV |
128 | ||
|
ATF1504ASVL |
64 |
Yes |
3.3V Low‑Power Device |
|
ATF1508ASVL |
128 |
The macrocell architecture of the ATF1502, ATF1504 and ATF1508 devices is identical, with slight differences compared to the ATF1500A/AL.
The ATF1500A/AL devices (non‑ISP) use a globally connected architecture, in which any pin can be routed to any other pin. In contrast, the ATF1502/1504/1508 devices have a defined number of pins and feedback signals that are routed to Logic Array Blocks (LABs) through a Universal Interconnect Matrix (UIM). Each LAB contains 16 macrocells.