EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 90

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

Embedded Multipliers in Cyclone III Devices
Embedded
Multiplier Block
Overview
5–2
Cyclone III Device Handbook, Volume 1
Each Cyclone III device has one to four columns of embedded multipliers
that implement multiplication functions.
embedded multiplier columns with the surrounding logic array blocks
(LABs). You can configure each embedded multiplier as one 18 x 18
multiplier or two 9 x 9 multipliers. For multiplication greater than 18 x 18,
Quartus II software cascades multiple embedded multiplier blocks
together. There is no restriction on the data width of the multiplier, but the
greater the data width, the slower the multiplication process.
Figure 5–1. Embedded Multipliers Arranged in Columns with Adjacent LABs
1 LAB
Row
Embedded
Embedded
Multiplier
Multiplier
Column
Figure 5–1
Altera Corporation-Preliminary
shows one of the
March 2007