EP3C80 datasheet(165/274 Pages) ALTERA

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Chapter 9: Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family

9–7

Configuration Features

August 2012

Altera Corporation

Cyclone III Device Handbook

Volume 1

Configuration File Size

Table 9–3 lists the uncompressed configuration file sizes for the Cyclone III device

family. To calculate the amount of storage space required for multiple device

configurations, add the file size of each device together.

Use the data in Table 9–3 only to estimate the file size before design compilation.

Different configuration file formats, such as Hexadecimal (.hex) or Tabular Text

File (.ttf) formats, have different file sizes. However, for any specific version of the

Quartus II software, any design targeted for the same device has the same

uncompressed configuration file size. If you are using compression, the file size varies

after each compilation because the compression ratio is design dependent.

f For more information about setting device configuration options or creating

configuration files, refer to the Software Settings section in volume 2 of the

Configuration Handbook.

Configuration and JTAG Pin I/O Requirements

Cyclone III devices are manufactured using the TSMC 65-nm low-k dielectric process;

Cyclone III LS devices are manufactured using the TSMC 60-nm low-k dielectric

process. Although Cyclone III device family uses TSMC 2.5-V transistor technology in

the I/O buffers, the devices are compatible and able to interface with 2.5-, 3.0-, 3.3-V

configuration voltage standards. However, you must follow specific requirements

when interfacing Cyclone III device family with 2.5-, 3.0-, 3.3-V configuration voltage

standards.

All I/O inputs must maintain a maximum AC voltage of 4.1 V. When using a JTAG

configuration scheme or a serial configuration device in an AS configuration scheme,

you must connect a 25- series resistor at the near end of the TDO and TDI pin or the

serial configuration device for the DATA[0]pin. When cascading Cyclone III device

family in a multi-device configuration, you must connect the repeater buffers between

the master and slave devices for DATA and DCLK.

Table 9–3. Cyclone III Device Family Uncompressed Raw Binary File (.rbf) Sizes

Device

Data Size (bits)

Cyclone III

EP3C5

3,000,000

EP3C10

3,000,000

EP3C16

4,100,000

EP3C25

5,800,000

EP3C40

9,600,000

EP3C55

14,900,000

EP3C80

20,000,000

EP3C120

28,600,000

Cyclone III LS

EP3CLS70

26,766,760

EP3CLS100

26,766,760

EP3CLS150

50,610,728

EP3CLS200

50,610,728

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