EP1S40B956C5 Altera, EP1S40B956C5 Datasheet - Page 582

• Manufacturer Part Number: EP1S40B956C5
• Description: IC STRATIX FPGA 40K LE 956-BGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S40B956C5

• Number Of Logic Elements/cells: 41250
• Number Of Labs/clbs: 4125
• Total Ram Bits: 3423744
• Number Of I /o: 683
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 956-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

TriMatrix Memory Overview
TriMatrix
Memory
Overview
7–4
Stratix Device Handbook, Volume 2
Simple multiplier
Multiply-accumulate
Two-multipliers adder
Four-multipliers adder
Table 7–3. Operation Modes for DSP Blocks
DSP Block Mode
f
Each DSP block supports either eight 9
multipliers, or one 36
adder or an accumulator unit based on the operation mode.
shows the different operation modes for the DSP blocks.
Implementing multipliers, multiply-adders, and multiply-accumulators
in the DSP blocks has a performance advantage over logic cell
implementation. Using DSP blocks also reduces logic cell and routing
resource consumption. To achieve higher performance, register each
stage of the DSP block to allow pipelining. For implementing
applications, such as FIR filters, efficiently use the input registers of the
DSP block as shift registers.
For more information on DSP blocks, see the DSP Blocks in Stratix &
Stratix GX Devices chapter.
Stratix and Stratix GX devices feature the TriMatrix memory structure,
composed of three sizes of embedded RAM blocks. These include the
512-bit size M512 block, the 4-Kbit size M4K block, and the 512-Kbit size
M-RAM block. Each block is configurable to support a wide range of
features.
Tables 7–4
and Stratix GX device, respectively.
2 four-multipliers adder
Eight multipliers with
eight product outputs
Two multiply and
accumulate (34 bit)
4 two-multipliers adders
EP1S10
EP1S20
EP1S25
Table 7–4. TriMatrix Memory Resources in Stratix Devices (Part 1 of 2)
Device
9 x 9-bit
and
7–5
Number & Size of Multipliers per DSP Block
show the number of memory blocks in each Stratix
36-bit multiplier. These multipliers can feed an
Four multipliers with four
product outputs
Two multiply and
accumulate (52 bit)
2 two-multipliers adders
1 four-multipliers adder
M512
194
224
94
18 x 18-bit
9-bit multipliers, four 18-bit
M4K
138
60
82
One multiplier with one
product output
Altera Corporation
36 x 36-bit
September 2004
M-RAM
Table 7–3
1
2
2