EPM3256A ALTERA [Altera Corporation], EPM3256A Datasheet - Page 5

• Manufacturer Part Number: EPM3256A
• Description: Programmable Logic Device Family
• Manufacturer: ALTERA [Altera Corporation]

Altera Corporation
Figure 1. MAX 3000A Device Block Diagram
Note:
(1)
EPM3032A, EPM3064A, EPM3128A, and EPM3256A devices have six output enables. EPM3512A devices have
10 output enables.
INPUT/OE2/GCLK2
INPUT/GCLK1
INPUT/GCLRn
INPUT/OE1
2 to 16 I/O
2 to 16 I/O
6 or 10 Output Enables (1)
Control
Control
Block
Block
I/O
I/O
Logic Array Blocks
The MAX 3000A device architecture is based on the linking of
high–performance LABs. LABs consist of 16–macrocell arrays, as shown
in
that is fed by all dedicated input pins, I/O pins, and macrocells.
Each LAB is fed by the following signals:
6 or 10
6 or 10
Figure
2 to
16
2 to
16
36 signals from the PIA that are used for general logic inputs
Global controls that are used for secondary register functions
LAB A
LAB C
1. Multiple LABs are linked together via the PIA, a global bus
Macrocells
Macrocells
33 to 48
1 to 16
MAX 3000A Programmable Logic Device Family Data Sheet
2 to 16
2 to 16
16
16
36
36
PIA
36
36
2 to 16
2 to 16
16
16
Macrocells
Macrocells
17 to 32
49 to 64
LAB D
LAB B
6 or 10 Output Enables (1)
2 to
16
2 to
16
Control
Control
Block
Block
I/O
I/O
6 or 10
6 or 10
2 to 16 I/O
2 to 16 I/O
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