M4A3-128/64-10CAC Lattice, M4A3-128/64-10CAC Datasheet - Page 9

• Manufacturer Part Number: M4A3-128/64-10CAC
• Description: CPLD - Complex Programmable Logic Devices HI PERF E2CMOS PLD
• Manufacturer: Lattice

Specifications of M4A3-128/64-10CAC

• Product Category: CPLD - Complex Programmable Logic Devices
• Memory Type: EEPROM
• Number Of Macrocells: 128
• Maximum Operating Frequency: 100 MHz
• Delay Time: 5 ns
• Number Of Programmable I/os: 400
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Package / Case: CABGA-100-400
• Mounting Style: SMD/SMT
• Number Of Product Terms Per Macro: 20
• Factory Pack Quantity: 920
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V

a. Basic cluster with XOR
b. Extended cluster, active high
c. Extended cluster, active low
0
d. Basic cluster routed away;
e. Extended cluster routed away
single-product-term, active high
17466G-007
Figure 3. Logic Allocator Configurations: Synchronous Mode
a. Basic cluster with XOR
b. Extended cluster, active high
c. Extended cluster, active low
0
d. Basic cluster routed away;
e. Extended cluster routed away
single-product-term, active high
17466G-008
Figure 4. Logic Allocator Configurations: Asynchronous Mode
Note that the configuration of the logic allocator has absolutely no impact on the speed of the signal. All
configurations have the same delay. This means that designers do not have to decide between optimizing
resources or speed; both can be optimized.
If not used in the cluster, the extra product term can act in conjunction with the basic cluster to provide
XOR logic for such functions as data comparison, or it can work with the D-,T-type flip-flop to provide
for J-K, and S-R register operation. In addition, if the basic cluster is routed to another macrocell, the extra
product term is still available for logic. In this case, the first XOR input will be a logic 0. This circuit has the
flexibility to route product terms elsewhere without giving up the use of the macrocell.
Product term clusters do not “wrap” around a PAL block. This means that the macrocells at the ends of
the block have fewer product terms available.
ispMACH 4A Family
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