EPM7064STC100-6 Altera, EPM7064STC100-6 Datasheet - Page 12

• Manufacturer Part Number: EPM7064STC100-6
• Description: MAX 7000/S/AE/B
• Manufacturer: Altera

MAX 7000 Programmable Logic Device Family Data Sheet
12
Shareable Expanders
Each LAB has 16 shareable expanders that can be viewed as a pool of
uncommitted single product terms (one from each macrocell) with
inverted outputs that feed back into the logic array. Each shareable
expander can be used and shared by any or all macrocells in the LAB to
build complex logic functions. A small delay (t
shareable expanders are used.
can feed multiple macrocells.
Figure 5. Shareable Expanders
Parallel Expanders
Parallel expanders are unused product terms that can be allocated to a
neighboring macrocell to implement fast, complex logic functions.
Parallel expanders allow up to 20 product terms to directly feed the
macrocell OR logic, with five product terms provided by the macrocell and
15 parallel expanders provided by neighboring macrocells in the LAB.
Shareable expanders can be shared by any or all macrocells in an LAB.
36 Signals
from PIA
16 Shared
Expanders
Figure 5
shows how shareable expanders
SEXP
Product-Term Select Matrix
) is incurred when
Altera Corporation
Macrocell
Product-Term
Logic
Macrocell
Product-Term
Logic