18 x 18

Multiplier Adder

Summed with

36 bit Input

18 x 18

Multiplier

Adder

Mode

Independent Input and Output

Multiplications Operator

Variable-

precision

DSP Block

Member

Code

Variant

27 x 27

Multiplier

18 x 18

Multiplier

9 x 9

Multiplier

87

87

87

174

261

87

D5

Cyclone V ST

112

112

112

224

336

112

D6

Embedded Memory Blocks

The embedded memory blocks in the devices are flexible and designed to provide an optimal amount of

small- and large-sized memory arrays to fit your design requirements.

Types of Embedded Memory

The Cyclone V devices contain two types of memory blocks:

• 10 Kb M10K blocks—blocks of dedicated memory resources. The M10K blocks are ideal for larger memory

arrays while still providing a large number of independent ports.

• 640 bit memory logic array blocks (MLABs)—enhanced memory blocks that are configured from dual-

purpose logic array blocks (LABs). The MLABs are ideal for wide and shallow memory arrays. The MLABs

are optimized for implementation of shift registers for digital signal processing (DSP) applications, wide

shallow FIFO buffers, and filter delay lines. Each MLAB is made up of ten adaptive logic modules (ALMs).

In the Cyclone V devices, you can configure these ALMs as ten 32 x 2 blocks, giving you one 32 x 20

simple dual-port SRAM block per MLAB.

Embedded Memory Capacity in Cyclone V Devices

Table 18: Embedded Memory Capacity and Distribution in Cyclone V Devices

Total RAM Bit (Kb)

MLAB

M10K

Member

Code

Variant

RAM Bit (Kb)

Block

RAM Bit (Kb)

Block

1,956

196

314

1,760

176

A2

Cyclone V E

3,383

303

485

3,080

308

A4

4,884

424

679

4,460

446

A5

7,696

836

1338

6,860

686

A7

13,917

1,717

2748

12,200

1,220

A9

1,349

159

255

1,190

119

C3

Cyclone V GX

2,795

295

472

2,500

250

C4

4,884

424

679

4,460

446

C5

7,696

836

1338

6,860

686

C7

13,917

1,717

2748

12,200

1,220

C9

Cyclone V Device Overview

Altera Corporation

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Embedded Memory Blocks

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2013.12.26