MAX 7000B Programmable Logic Device Data Sheet
Figure 1. MAX 7000B Device Block Diagram
INPUT/GCLK1
INPUT/OE2/GCLK2
INPUT/OE1
INPUT/GCLRn
6 or 10 Output Enables (1)
6 or 10 Output Enables (1)
LAB A
LAB B
2 to 16
2 to 16
2 to 16
2 to 16
36
36
Macrocells
1 to 16
Macrocells
17 to 32
I/O
I/O
2 to 16 I/O
Control
Block
Control
Block
2 to 16 I/O
16
16
6 or 10
2 to 16
2 to 16
6 or 10
LAB C
LAB D
2 to 16
2 to 16
PIA
2 to 16
2 to 16
36
36
Macrocells
33 to 48
Macrocells
49 to 64
I/O
Control
Block
I/O
Control
Block
2 to 16 I/O
2 to 16 I/O
16
16
6 or 10
6 or 10
2 to 16
2 to 16
Note:
(1) EPM7032B, EPM7064B, EPM7128B, and EPM7256B devices have six output enables. EPM7512B devices have ten
output enables.
Logic Array Blocks
The MAX 7000B device architecture is based on the linking of
high-performance LABs. LABs consist of 16 macrocell arrays, as shown in
Figure 1. Multiple LABs are linked together via the PIA, a global bus that
is fed by all dedicated input pins, I/O pins, and macrocells.
Each LAB is fed by the following signals:
■
■
■
36 signals from the PIA that are used for general logic inputs
Global controls that are used for secondary register functions
Direct input paths from I/O pins to the registers that are used for fast
setup times
6
Altera Corporation
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