EP3C40 datasheet(18/274 Pages) ALTERA

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Chapter 1: Cyclone III Device Family Overview

Cyclone III Device Family Architecture

Cyclone III Device Handbook

July 2012

Altera Corporation

Volume 1

Table 1–5 lists Cyclone III device family configuration schemes.

Cyclone III Device Family Architecture

Cyclone III device family includes a customer-defined feature set that is optimized for

portable applications and offers a wide range of density, memory, embedded

multiplier, and I/O options. Cyclone III device family supports numerous external

memory interfaces and I/O protocols that are common in high-volume applications.

The Quartus II software features and parameterizable IP cores make it easier for you

to use the Cyclone III device family interfaces and protocols.

The following sections provide an overview of the Cyclone III device family features.

Logic Elements and Logic Array Blocks

The logic array block (LAB) consists of 16 logic elements and a LAB-wide control

block. An LE is the smallest unit of logic in the Cyclone III device family architecture.

Each LE has four inputs, a four-input look-up table (LUT), a register, and output logic.

The four-input LUT is a function generator that can implement any function with four

variables.

f For more information about LEs and LABs, refer to the Logic Elements and Logic Array

Blocks in the Cyclone III Device Family chapter.

Cyclone III

EP3CLS70

—

C7, C8, I7 C7, C8, I7

C7, C8,

EP3CLS100

—

C7, C8, I7 C7, C8, I7

C7, C8,

EP3CLS150

—

C7, C8, I7

—

C7, C8,

EP3CLS200

—

C7, C8, I7

—

C7, C8,

Table 1–4. Cyclone III Device Family Speed Grades (Part 2 of 2)

Family

Device

E144

M164

P240

F256

U256

F324

F484

U484

F780

Table 1–5. Cyclone III Device Family Configuration Schemes

Configuration Scheme

Cyclone III

Cyclone III LS

Active serial (AS)

Active parallel (AP)

—

Passive serial (PS)

Fast passive parallel (FPP)

Joint Test Action Group (JTAG)

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