EPF8452ATC100-4N Datasheet, PDF (20/62 Pages) Altera Corporation – Programmable Logic Device Family

FLEX 8000 Programmable Logic Device Family Data Sheet
Figure 11. FLEX 8000 Row-to-IOE Connections
Numbers in parentheses are for EPF81500A devices. See Note (1).
2
2
2
2
Each IOE can drive
n
up to two row
channels.
n
2222
n
Row Interconnect
168
(216)
Each IOE is
driven by an
n-to-1
multiplexer.
2222
n
n
168
(216)
n
n
n
2
2
2
2
Note:
(1) n = 13 for EPF8282A and EPF8282AV devices.
n = 21 for EPF8452A, EPF8636A, EPF8820A, and EPF81188A devices.
n = 27 for EPF81500A devices.
IOE 1
IOE 2
IOE 3
IOE 4
IOE 5
IOE 6
IOE 7
IOE 8
Column-to-IOE Connections
Two IOEs are located at the top and bottom of the column channels (see
Figure 12). When an IOE is used as an input, it can drive up to two
separate column channels. The output signal to an IOE can choose from 8
of the 16 column channels through an 8-to-1 multiplexer.
20
Altera Corporation